ANTENNAS AND PROPAGATION Introduction. Carlos A. Fernandes. Antennas and Propagation - Master in Aerospace Engineering
|
|
- Britton Dawson
- 5 years ago
- Views:
Transcription
1 ANTENNAS AND PROPAGATION Introduction Carlos A. Fernandes Antennas and Propagation - Master in Aerospace Engineering
2 1.1 Electromagnetic radiation What is electromagnetic radiation? ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 2
3 1.1 Electromagnetic radiation Sources of EM radiation Sol fonte natural Sol, ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 3
4 1.1 Electromagnetic radiation Sources of EM radiation Power lines ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 4
5 1.1 Electromagnetic radiation Sources of EM radiation Telecom antennas ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 5
6 1.1 Electromagnetic radiation Sources of EM radiation Home appliances ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 6
7 1.1 Electromagnetic radiation Sources of EM radiation Light bulbs ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 7
8 1.1 Electromagnetic radiation Sources of EM radiation I f -red d devices d i Infra InfraANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 8
9 1.1 Electromagnetic radiation Sources of EM radiation X-ray devices ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 9
10 1.2 Brief historical account Static electricity (known since 600 AC) Magnetism Electric field (static) ti Magnetico field (static) ti E [Volt/m] H [Ampere/M] EeHha have space orientation ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 10
11 1.2 Brief historical account André--Marie Ampère André Michael Faraday I Magnetic field produced byy static electrical current Electric current produced y g magnetic g byy a time varying field ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 11
12 1.2 Brief historical account Maxwell, 1873 Hertz, 1887 Time varying Electric and Magnetic fields are coupled to each other and propagate without the need for a material medium. ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 12
13 1.2 Brief historical account Spark gap transmitter (Circuit similar to Hertz s) Receiver (resonant loop) ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 13
14 1.2 Brief historical account Marconi Antenna Why is it so large? ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 14
15 1.2 Brief historical account Poldhue, Cornualha ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 15
16 1.2 Brief historical account Forerunners in the path of electromagnetics 600 AC - Thales from Mileto William Gilbert Benjamin Franklin 1855) Charles Coulomb Karl Gauss ( ) Alessandro Volta Cauchy ( ) Hans Oersted Riemann ( ) Fourier ( ) 1830) Andre Ampere Green ( ) Michael Faraday Stokes ( ) Joseph Henry (telégrafo) Heaviside ( ) James Maxwell ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 16
17 1.2 Brief historical account First steps for radio and wireless communications Heinrich Herz (experimental proof of Maxwell equations) Marconi, Popov (application to communications) 1901 First transatlantic radio transmission 1903 Start of commercial wireless telegraphy service 1913 Invention of the triod 1923 First voice transmission through radio waves 1930 Discovery of cosmic radiation 1945 Arthur C. Clark proposes the use of satellites 1945 Invention of the solid-state transistor ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 17
18 1.3 Wave concept v (z, t) ) = cos(ωt kz) ) ω= 2 π f phase k = ω/c/ v(z,t) f=100 MHz z [m] ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 18
19 1.3 Wave concept v (z, t) ) = cos(ωt - kx - kz) ) ω= 2 π f phase k = ω/c/ x [m] f=100 MHz z [m] z [m] ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 19
20 1.3 Wave concept v (r, t) ) = cos(ωt - kr)/ r ω= 2 π f fase k = ω/c/ x [m] f=100 MHz (For spherical wave the amplitude decreases with 1/r) z [m] z [m] ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 20
21 1.3 Electromagnetic spectrum Microwaves Vi isíble X Rays Radiowaves Infra-red UV γ Rays Frequêncy [Hz] Wavelength [m] Non ionizing radiation, TV ones FM Mo obile ph lites Satel Direct perceptio on Ionizing radiation Med dicin dia agn. atam. Med. tre ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 21
22 Regresso ao Índice ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 22
23 William Gilbert First systematic experiments with electricity and magnetism Invention of the electroscope for measuring electrostatic t ti fields. Work reported in De Magnete Regresso ao slide anterior ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 23
24 Establishment of the law of charge conservation. Identification of positive and negative charges. Invention of the lightning rod. Regresso ao slide anterior ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 24
25 Charles Coulomb Experiments and establishment the Coulomb Law ; F = K Q 1Q 2 r 2 Regresso ao slide anterior ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 25
26 Andre Ampere Invention of the solenoid to produce magnetic fields Experiments and establishment t of the law I1 I2 F =α r Regresso ao slide anterior ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 26
27 Michael Faraday Demonstration that a varying magnetic filed can produce an electric current. Regresso ao slide anterior ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 27
28 James Maxwell Establishment of the formal relation between electric and magnetic fields. Regresso ao slide anterior ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 28
29 Heinrich Hertz Experimental confirmation of Maxwell s equations. Regresso ao slide anterior ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 29
30 Guglielmo Marconi Demonstration of the potential of electromagnetic waves for longdistance wireless communications Regresso ao slide anterior ANTENNAS AND PROPAGATION - MAero carlos.fernandes@lx.it.pt 30
Introduction to the Communication Process. Digital Transmission MEEC
Introduction to the Communication Process Digital Transmission MEEC José Manuel Bioucas Dias Instituto Superior Técnico, 2014 Outline 1. The communication process 2. Elements of a communication system
More informationLecture 1 Introduction into the Subject
Lecture 1 Introduction into the Subject Brief History of Electromagnetics: The Early Stages ancient Greeks and Chinese aware of quite a few electric and magnetic phenomena (evidence points back to 600
More informationCollege Physics B - PHY2054C. Transformers & Electromagnetic Waves 10/08/2014. My Office Hours: Tuesday 10:00 AM - Noon 206 Keen Building
College - PHY2054C & Electromagnetic Waves 10/08/2014 My Office Hours: Tuesday 10:00 AM - Noon 206 Keen Building PHY2054C Second Mini-Exam next week on Wednesday!! Location: UPL 101, 10:10-11:00 AM Exam
More informationLecture 38: MON 24 NOV Ch.33 Electromagnetic Waves
Physics 2113 Jonathan Dowling Heinrich Hertz (1857 1894) Lecture 38: MON 24 NOV Ch.33 Electromagnetic Waves Maxwell Equations in Empty Space: E da = 0 S B da = 0 S C C B ds = µ ε 0 0 E ds = d dt d dt S
More informationApplied Electromagnetics
Applied Electromagnetics Dan Sievenpiper, 2018-10-29 1 History: A Few of the Early Pioneers in Electromagnetics Andre-Marie Ampere Michael Faraday James C. Maxwell Heinrich Hertz Invented telegraph (among
More informationCalifornia State University, Bakersfield. Signals and Systems. Luis Medina,
Luis Medina, Department of Electrical and Computer Engineering, California State University, Bakersfield Lecture 9 (Intro, History and Background) July 29 th, 2013 1 Electric Fields An electric field surrounds
More informationPhysics 102: Lecture 14 Electromagnetic Waves
Physics 102: Lecture 14 Electromagnetic Waves Physics 102: Lecture 14, Slide 1 Review: Phasors & Resonance At resonance Z is minimum (=R) I max is maximum (=V gen,max /R) V gen is in phase with I X L =
More informationANTENNAS AND PROPAGATION About the course. Carlos A. Fernandes. Antennas and Propagation - Master in Aerospace Engineering
ANTENNAS AND PROPAGATION About the course Carlos A. Fernandes Antennas and Propagation - Master in Aerospace Engineering Contacts Carlos A. Cardoso Fernandes Departamento t de Eng. Electrotécnica té e
More informationThe Forefathers of Radio. By Bob Buus, W2OD
The Forefathers of Radio By Bob Buus, W2OD Benjamin Franklin Jan. 17, 1706 April 17, 1790 (84) Born in Boston Apprentice Printer 1723 to Philadelphia 1723-26 in London Printing Business Retired in 1747
More informationCommunications II. Mohammad Fathi Text book: J.G. Proakis and M. Salehi, Communication System Engineering (2 nd Ed) Syllabus
Communications II Mohammad Fathi mfathi@uok.ac.ir Course information Text book: J.G. Proakis and M. Salehi, Communication System Engineering (2 nd Ed) Syllabus Introduction: [1.1, 1.2, 1.3, and 1.4] Review
More informationAntennas and Propagation. Chapter 1: Introduction
Antennas and Propagation : Introduction History of Antennas and Propagation Timeline 1870 Maxwell s Equations 80 Heinrich Hertz s Loop Experiment (1886) 90 1900 Guglielmo Marconi (1901) Transatlantic Transmission
More informationElectrical and Computer Engineering
Electrical and Computer Engineering The Historical and Contemporary Contributions of Electrical and Computer Engineering to Society Historical Overview University of North Carolina at Charlotte Department
More informationChapter 25. Electromagnetic Waves
Chapter 25 Electromagnetic Waves EXAM # 3 Nov. 20-21 Chapter 23 Chapter 25 Powerpoint Nov. 4 Problems from previous exams Physics in Perspective (pg. 836 837) Chapter 25 Electromagnetic Waves Units of
More informationLecture PowerPoints. Chapter 22 Physics: Principles with Applications, 7 th edition Giancoli
Lecture PowerPoints Chapter 22 Physics: Principles with Applications, 7 th edition Giancoli This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching
More informationLesson 24 Electromagnetic Waves
Physics 30 Lesson 24 Electromagnetic Waves On April 11, 1846, Michael Faraday was scheduled to introduce Sir Charles Wheatstone at a meeting of the Royal Society of London. Unfortunately, Wheatstone had
More information24. Antennas. What is an antenna. Types of antennas. Reciprocity
4. Antennas What is an antenna Types of antennas Reciprocity Hertzian dipole near field far field: radiation zone radiation resistance radiation efficiency Antennas convert currents to waves An antenna
More informationIntroduction to Radio Astronomy
Introduction to Radio Astronomy The Visible Sky, Sagittarius Region 2 The Radio Sky 3 4 Optical and Radio can be done from the ground! 5 Outline The Discovery of Radio Waves Maxwell, Hertz and Marconi
More informationIn an unmagnetized piece of iron, the atoms are arranged in domains. In each domain the atoms are aligned, but the domains themselves are random.
4/7 Properties of the Magnetic Force 1. Perpendicular to the field and velocity. 2. If the velocity and field are parallel, the force is zero. 3. Roughly (field and vel perp), the force is the product
More informationGeneral Physics (PHY 2140)
General Physics (PHY 2140) Lecture 11 Electricity and Magnetism AC circuits and EM waves Resonance in a Series RLC circuit Transformers Maxwell, Hertz and EM waves Electromagnetic Waves 6/18/2007 http://www.physics.wayne.edu/~alan/2140website/main.htm
More informationLecture Note on Wireless Communication Engineering I
Lecture Note on Wireless Communication Engineering I Prof. Kiyomichi Araki Department of Electrical & Electronics Tokyo Institute of Technology South III Bld. Room No. 912 TEL/FAX: 03-5734-3495 E-mail:
More informationChapter 21. Alternating Current Circuits and Electromagnetic Waves
Chapter 21 Alternating Current Circuits and Electromagnetic Waves AC Circuit An AC circuit consists of a combination of circuit elements and an AC generator or source The output of an AC generator is sinusoidal
More informationELECTROMAGNETIC WAVES HERTZ S EXPERIMENTS & OBSERVATIONS
VISUAL PHYSICS ONLINE MODULE 7 NATURE OF LIGHT ELECTROMAGNETIC WAVES HERTZ S EXPERIMENTS & OBSERVATIONS PRODUCTION & RECEPTION OF RADIO WAVES Heinrich Rudolf Hertz (1857 1894) was a German physicist who
More information22-1 (SJP, Phys 2020, Fa '01)
22-1 (SJP, Phys 2020, Fa '01) Ch. 22: Electromagnetic waves. We ve seen some of the ideas/discoveries of Ampere, Faraday, and others. So far, E & B seem different but somehow related. In what is perhaps
More informationAC Circuit. What is alternating current? What is an AC circuit?
Chapter 21 Alternating Current Circuits and Electromagnetic Waves 1. Alternating Current 2. Resistor in an AC circuit 3. Capacitor in an AC circuit 4. Inductor in an AC circuit 5. RLC series circuit 6.
More informationContents. Contents. Contents. Lecture Note on Wireless Communication Engineering I. Wireless Communication Engineering 1
Lecture Note on Wireless Communication Engineering I Prof. Kiyomichi Araki Department of Electrical & Electronics Tokyo Institute of Technology South III Bld. Room No. 91 TEL/FAX: +81-3-5734-3495 E-mail:
More informationAPPLIED ELECTROMAGNETICS: EARLY TRANSMISSION LINES APPROACH
APPLIED ELECTROMAGNETICS: EARLY TRANSMISSION LINES APPROACH STUART M. WENTWORTH Auburn University IICENTBN Nlfll 1807; WILEY 2 OO 7 ; Ttt^TlLtftiTTu CONTENTS CHAPTER1 Introduction 1 1.1 1.2 1.3 1.4 1.5
More informationExperiment 12: Microwaves
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Spring 2005 OBJECTIVES Experiment 12: Microwaves To observe the polarization and angular dependence of radiation from a microwave generator
More information1. COMMUNICATION 10. COMMUNICATION SYSTEMS GIST The sending and receiving of message from one place to another is called communication. Two important forms of communication systems are (i) Analog and (ii)
More informationJames Clerk Maxwell. Electric and Magnetic Fields
L 30 Electricity and Magnetism [7] Electromagnetic Waves Faraday laid the groundwork with his discovery of electromagnetic induction Maxwell added the last piece of the puzzle Hertz made the experimental
More informationELECTROMAGNETIC WAVES MARKS WEIGHTAGE 3 marks
ELECTROMAGNETIC WAVES MARKS WEIGHTAGE 3 marks QUICK REVISION (Important Concepts & Formulas) Electromagnetic radiation is the radiation in which associated electric and magnetic field oscillations are
More informationMicrowave and optical systems Introduction p. 1 Characteristics of waves p. 1 The electromagnetic spectrum p. 3 History and uses of microwaves and
Microwave and optical systems Introduction p. 1 Characteristics of waves p. 1 The electromagnetic spectrum p. 3 History and uses of microwaves and optics p. 4 Communication systems p. 6 Radar systems p.
More informationCHAPTER 5 THEORY AND TYPES OF ANTENNAS. 5.1 Introduction
CHAPTER 5 THEORY AND TYPES OF ANTENNAS 5.1 Introduction Antenna is an integral part of wireless communication systems, considered as an interface between transmission line and free space [16]. Antenna
More informationChapter 1 - Antennas
EE 483/583/L Antennas for Wireless Communications 1 / 8 1.1 Introduction Chapter 1 - Antennas Definition - That part of a transmitting or receiving system that is designed to radiate or to receive electromagnetic
More informationChapter 18 The Electromagnetic Spectrum and Light
Chapter 18 Sections 18.1 Electromagnetic Waves 18.2 The 18.3 Behavior of Light 18.4 Color 18.5 Sources of Light Chapter 18 The and Light Section 18.1 Electromagnetic Waves To review: mechanical waves require
More informationELECTROMAGNETIC SPECTRUM ELECTROMAGNETIC SPECTRUM
LECTURE:2 ELECTROMAGNETIC SPECTRUM ELECTROMAGNETIC SPECTRUM Electromagnetic waves: In an electromagnetic wave the electric and magnetic fields are mutually perpendicular. They are also both perpendicular
More informationText Based Exercises. ~~ df~ ~ ~ ~ YPE A : VERY SHORT ANSWER QUESTIONS (1 mark each)
Text Based Exercises YPE A : VERY SHORT ANSWER QUESTIONS (1 mark each) 1. Name the scientist who first predicted the existence of electromagnetic waves. 2. Name the Indian scientist who first produced
More informationLecture Notes (Electric & Magnetic Fields in Space)
James C. Maxwell: Lecture Notes (Electric & Magnetic Fields in Space) - Maxwell (1831-1879) was a Scottish physicist who is generally regarded as the most profound and productive physicist between the
More informationLesson Objectives: The electromagnetic spectrum: To know the parts of To know their properties, uses, dangers
03/02/2014 Electromagnetic Spectrum Review Using Waves Lesson Objectives: The electromagnetic spectrum: To know the parts of To know their properties, uses, dangers To compare and contrast analogue and
More informationCOPYRIGHTED MATERIAL. Introduction. 1.1 A Short History of Antennas
1 Introduction 1.1 A Short History of Antennas Work on antennas started many years ago. The first well-known satisfactory antenna experiment was conducted by the German physicist Heinrich Rudolf Hertz
More informationMicrowaves. Group 7, 11/22/2013
Microwaves Group 7, 11/22/2013 Matthew Spickard History/Definition Andrew Miller Range of practical application Dustin Morris Detailed application and equation definition History First predicted by James
More informationChapter-15. Communication systems -1 mark Questions
Chapter-15 Communication systems -1 mark Questions 1) What are the three main units of a Communication System? 2) What is meant by Bandwidth of transmission? 3) What is a transducer? Give an example. 4)
More informationPhysics 1502: Lecture 26 Today s Agenda
Phsics 1502: Lecture 26 Toda s Agenda Announcements: Midterm 2: NOT Nov. 6 About Monda Nov. 16 Homework 07: due Frida this week Electromagnetic Waves Mawell s Equations - Revised Energ and Momentum in
More informationFrequency, Time Period, and Wavelength
Frequency, Time Period, and Wavelength Frequency of an AC signal is a simple matter of how many cycles the signal goes through in a second. (Cycles Per Second, or Hertz). An AC signal will start from zero
More informationLearn From The Proven Best!
Applied Technology Institute (ATIcourses.com) Stay Current In Your Field Broaden Your Knowledge Increase Productivity 349 Berkshire Drive Riva, Maryland 21140 888-501-2100 410-956-8805 Website: www.aticourses.com
More informationUnit 15 Electromagnetic Waves
Unit 5 Electromagnetic Waves 97 SUMMRY 9 99 MCQ For the answer of the following questions choose the correct alternative from among the given ones. () Who produced the electromagnetic waves first? Marconi
More informationCH 1. Large coil. Small coil. red. Function generator GND CH 2. black GND
Experiment 6 Electromagnetic Induction "Concepts without factual content are empty; sense data without concepts are blind... The understanding cannot see. The senses cannot think. By their union only can
More informationELECTROMAGNETIC WAVES AND THE EM SPECTRUM MR. BANKS 8 TH GRADE SCIENCE
ELECTROMAGNETIC WAVES AND THE EM SPECTRUM MR. BANKS 8 TH GRADE SCIENCE ELECTROMAGNETIC WAVES Do not need matter to transfer energy. Made by vibrating electric charges. When an electric charge vibrates,
More informationElectromagnetic Waves & the Electromagnetic Spectrum
Electromagnetic Waves & the Electromagnetic Spectrum longest wavelength shortest wavelength The Electromagnetic Spectrum The name given to a group of energy waves that are mostly invisible and can travel
More informationHow Lakhovsky Oscillating Circuits Work
How Lakhovsky Oscillating Circuits Work This invention made by Georges Lakhovsky relates to an apparatus for collecting electrical oscillations. It has been shown that short and very short magnetic or
More informationModule 17 Electromagnetic Waves and Wireless Communication
Module 17 Electromagnetic Waves and Wireless Communication What this module is about Are you familiar with the saying that goes The world is becoming smaller.? What does this statement imply? Does it mean
More information14. COMMUNICATION SYSTEM
14. COMMUNICATION SYSTEM SYNOPSIS : INTRODUCTION 1. The exchange of information between a sender and receiver is called communication. 2. The arrangement of devices to transfere the information is called
More informationRadiation from Antennas
Radiation from Antennas Ranga Rodrigo University of Moratuwa November 20, 2008 Ranga Rodrigo (University of Moratuwa) Radiation from Antennas November 20, 2008 1 / 32 Summary of Last Week s Lecture Radiation
More informationTurn off all electronic devices
Radio 1 Radio 2 Observations about Radio Radio It can transmit sound long distances wirelessly It involve antennas It apparently involves electricity and magnetism Its reception depends on antenna positioning
More informationPRINCIPLES OF COMMUNICATION SYSTEMS. Lecture 1- Introduction Elements, Modulation, Demodulation, Frequency Spectrum
PRINCIPLES OF COMMUNICATION SYSTEMS Lecture 1- Introduction Elements, Modulation, Demodulation, Frequency Spectrum Topic covered Introduction to subject Elements of Communication system Modulation General
More informationChapter 15: Radio-Wave Propagation
Chapter 15: Radio-Wave Propagation MULTIPLE CHOICE 1. Radio waves were first predicted mathematically by: a. Armstrong c. Maxwell b. Hertz d. Marconi 2. Radio waves were first demonstrated experimentally
More informationStanding waves. Consider a string with 2 waves of equal amplitude moving in opposite directions. or, if you prefer cos T
Waves 2 1. Standing waves 2. Transverse waves in nature: electromagnetic radiation 3. Polarisation 4. Dispersion 5. Information transfer and wave packets 6. Group velocity 1 Standing waves Consider a string
More informationMagnetism can produce electric current can. produce magnetism Electromagnetic Induction
Magnetism can produce electric current, and electric current can produce magnetism. In 1831, two physicists, Michael Faraday in England and Joseph Henry in the United States, independently discovered that
More informationOutline / Wireless Networks and Applications Lecture 3: Physical Layer Signals, Modulation, Multiplexing. Cartoon View 1 A Wave of Energy
Outline 18-452/18-750 Wireless Networks and Applications Lecture 3: Physical Layer Signals, Modulation, Multiplexing Peter Steenkiste Carnegie Mellon University Spring Semester 2017 http://www.cs.cmu.edu/~prs/wirelesss17/
More informationElectromagnetic Spectrum
Electromagnetic Spectrum The electromagnetic radiation covers a vast spectrum of frequencies and wavelengths. This includes the very energetic gamma-rays radiation with a wavelength range from 0.005 1.4
More informationVertical ionospheric sounding: a technique to measure the electronic density in the ionosphere.
310/1749-45 ICTP-COST-USNSWP-CAWSES-INAF-INFN International Advanced School on Space Weather -19 May 006 History Propagation Cesidio BIANCHI Istituto Nazionale di Geofisica e Vulcanologia Dipartimento
More informationMobile Communications I Chapter 1: Introduction and History. Applications History Development of wireless systems
Mobile Communications I Chapter 1: Introduction and History Applications History Development of wireless systems Wireless networks in comparison to fixed networks Higher loss-rates due to interference
More informationElectromagnetic Radiation
Teacher Edition EMR: Investigation 3 Integrative Science, Technology, Engineering, and Mathematics Electromagnetic Radiation Investigation 2 Electromagnetic Spectrum Instructional Objectives Students will:
More informationWaves, Wavelength, Frequency and. Bands. Al Penney VO1NO
Waves, Wavelength, Frequency and Bands Objective On completion, you should be able to: Define Frequency, Wavelength, Band; Perform simple calculations involving frequency and wavelength; and Be familiar
More informationWave Behavior and The electromagnetic Spectrum
Wave Behavior and The electromagnetic Spectrum What is Light? We call light Electromagnetic Radiation. Or EM for short It s composed of both an electrical wave and a magnetic wave. Wave or particle? Just
More informationDraw and label this wave: - What do waves transfer? (They do this without transferring what?) What do all electromagnetic waves have in common?
What do waves transfer? Draw and label this wave: - (They do this without transferring what?) What do all electromagnetic waves have in common? Name the electromagnetic spectrum from shortest to longest
More informationAntennas and Propagation. Chapter 5
Antennas and Propagation Chapter 5 Introduction An antenna is an electrical conductor or system of conductors Transmission - radiates electromagnetic energy into space Reception - collects electromagnetic
More informationBackground Data: Military Communication and The Radio Game
Background Data: Military Communication and The Radio Game Randy H. Katz CS Division, EECS Dept. University of California, Berkeley Spring 2008 Quick History: Electricity and Magnetism in the 19 th Century
More informationAntennas and Propagation. Chapter 5
Antennas and Propagation Chapter 5 Introduction An antenna is an electrical conductor or system of conductors Transmission - radiates electromagnetic energy into space Reception - collects electromagnetic
More informationADVANCED MODELING IN COMPUTATIONAL ELECTROMAGNETIC COMPATIBILITY
ADVANCED MODELING IN COMPUTATIONAL ELECTROMAGNETIC COMPATIBILITY DRAGAN POLJAK, PhD Department of Electronics University of Split, Croatia BICENTENNIAL 1 8 O 7 WILEY 2 O O 7 ICENTENNIAL WILEY-INTERSCIENCE
More informationElectrical noise in the OR
Electrical noise in the OR Chris Thompson Senior Staff Specialist Royal Prince Alfred Hospital SYDNEY SOUTH WEST AREA HEALTH SERVICE NSW HEALTH Electrical noise in the OR Root causes Tiny little signals
More informationEECS 216 Winter 2008 SOLUTIONS Lab 3: AM Radio Part I: Intro & Pre-lab Assignment
EECS 216 Winter 2008 SOLUTIONS Lab 3: AM Radio Part I: Intro & Pre-lab Assignment c Kim Winick 2008 1 Introduction 1.1 A Bit of History The transmission and storage of information are vital functions of
More informationAny wave shape can be reproduced by the sum of sine waves of the appropriate magnitude and frequency.
How do we use an oscilloscope? Measure signals with unknown wave shapes and frequency other than 60 Hz sine waves and dc. To get a picture of the waveform. Distortion? Phase duration? Magnitude Any wave
More informationProperties of Inductor and Applications
LABORATORY Experiment 3 Properties of Inductor and Applications 1. Objectives To investigate the properties of inductor for different types of magnetic material To calculate the resonant frequency of a
More informationExperiment 5: Spark Gap Microwave Generator Dipole Radiation, Polarization, Interference W14D2
Experiment 5: Spark Gap Microwave Generator Dipole Radiation, Polarization, Interference W14D2 1 Announcements Week 14 Prepset due Fri at 8:30 am PS 11 due Week 14 Friday at 9 pm in boxes outside 26-152
More informationEMC Overview. What is EMC? Why is it Important? Case Studies. Examples of calculations used in EMC. EMC Overview 1
EMC Overview What is EMC? Why is it Important? Case Studies. Examples of calculations used in EMC. EMC Overview 1 What Is EMC? Electromagnetic Compatibility (EMC): The process of determining the interaction
More informationAntennas 1. Antennas
Antennas Antennas 1! Grading policy. " Weekly Homework 40%. " Midterm Exam 30%. " Project 30%.! Office hour: 3:10 ~ 4:00 pm, Monday.! Textbook: Warren L. Stutzman and Gary A. Thiele, Antenna Theory and
More informationDefinitions of Technical Terms
Definitions of Technical Terms Terms Ammeter Amperes, Amps Band Capacitor Carrier Squelch Diode Dipole Definitions How is an ammeter usually connected = In series with the circuit What instrument is used
More informationIntroduction to Telecommunications and Computer Engineering Unit 3: Communications Systems & Signals
Introduction to Telecommunications and Computer Engineering Unit 3: Communications Systems & Signals Syedur Rahman Lecturer, CSE Department North South University syedur.rahman@wolfson.oxon.org Acknowledgements
More informationEnergy in Electromagnetic Waves
OpenStax-CNX module: m42446 1 Energy in Electromagnetic Waves * OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 Abstract Explain how the energy
More informationWiFi Lab Division C Team #
Team Name: Team Number: Student Names: & Directions: You will be given up to 30 minutes to complete the following written test on topics related to Radio Antennas, as described in the official rules. Please
More informationINTRODUCTION. 5. Electromagnetic Waves
INTRODUCTION An electric current produces a magnetic field, and a changing magnetic field produces an electric field Because of such a connection, we refer to the phenomena of electricity and magnetism
More informationTABLE 1.1 Frequency Bands Used in Commercial Broadcasting. Channels Frequency Range Wavelength Range
1 INTRODUCTION Scientists and mathematicians of the nineteenth century laid the foundation of telecommunication and wireless technology, which has affected all facets of modern society. In 1864, James
More informationPhysics 1C. Lecture 24A. Finish Chapter 27: X-ray diffraction Start Chapter 24: EM waves. Average Quiz score = 6.8 out of 10.
Physics 1C Lecture 24A Finish Chapter 27: X-ray diffraction Start Chapter 24: EM waves Average Quiz score = 6.8 out of 10 This is a B- Diffraction of X-rays by Crystals! X-rays are electromagnetic radiation
More informationAnnouncements : Wireless Networks Lecture 3: Physical Layer. Bird s Eye View. Outline. Page 1
Announcements 18-759: Wireless Networks Lecture 3: Physical Layer Please start to form project teams» Updated project handout is available on the web site Also start to form teams for surveys» Send mail
More informationRADIOPROPAGAÇÃO. Carlos A. Fernandes (resp) António Topa. Radiowave Propagation - Master in Electrical and Computer Engineering
RADIOPROPAGAÇÃO Carlos A. Fernandes (resp) António Topa Radiowave Propagation - Master in Electrical and Computer Engineering Outline Relevance of wireless propagation modeling; Course content; Classes
More informationAntennas & Propagation. CSG 250 Fall 2007 Rajmohan Rajaraman
Antennas & Propagation CSG 250 Fall 2007 Rajmohan Rajaraman Introduction An antenna is an electrical conductor or system of conductors o Transmission - radiates electromagnetic energy into space o Reception
More informationAntennas and Propagation
CMPE 477 Wireless and Mobile Networks Lecture 3: Antennas and Propagation Antennas Propagation Modes Line of Sight Transmission Fading in the Mobile Environment Introduction An antenna is an electrical
More information37 Electromagnetic Induction. Magnetism can produce electric current, and electric current can produce magnetism.
Magnetism can produce electric current, and electric current can produce magnetism. In 1831, two physicists, Michael Faraday in England and Joseph Henry in the United States, independently discovered that
More informationAntennas and Propagation
Mobile Networks Module D-1 Antennas and Propagation 1. Introduction 2. Propagation modes 3. Line-of-sight transmission 4. Fading Slides adapted from Stallings, Wireless Communications & Networks, Second
More informationRadios and radiowaves
Radios and radiowaves Physics 1010: Dr. Eleanor Hodby Day 26: Radio waves Reminders: HW10 due Monday Nov 30th at 10pm. Regular help session schedule this week Final: Monday Dec 14 at 1.30-4pm Midterm 1
More informationELECTROMAGNETIC 0 Hz 300 GHz
ELECTROMAGNETIC 0 Hz 300 GHz Field characterization & occupational exposure sources Laura FILOSA 1. Organization of the NIR Module 2. European frame introduction 3. Electromagnetic field characterization
More informationWaves And Electromagnetic Spectrum Answer Key
We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with waves and electromagnetic
More informationChapter 22. Electromagnetic Waves
Ch-22-1 Chapter 22 Electromagnetic Waves Questions 1. The electric field in an EM wave traveling north oscillates in an east-west plane. Describe the direction of the magnetic field vector in this wave.
More informationLab 2 Radio-frequency Coils and Construction
ab 2 Radio-frequency Coils and Construction Background: In order for an MR transmitter/receiver coil to work efficiently to excite and detect the precession of magnetization, the coil must be tuned to
More informationInformation in Radio Waves
Using History of Radio presentation: Slide 1: The History of Radio and Radio Astronomy - Introduce the purpose of the overall lesson, which is to give perspective on where all their household technology
More informationQuick History: Electricity and Magnetism in the 19 th Century. Background Data: Military Communication and The Radio Game. E&M History.
Background Data: Military Communication and The Radio Game Randy H. Katz CS Division, EECS Dept. University of California, Berkeley Spring 2011 Quick History: Electricity and Magnetism in the 19 th Century
More informationElements of Communication System Channel Fig: 1: Block Diagram of Communication System Terminology in Communication System
Content:- Fundamentals of Communication Engineering : Elements of a Communication System, Need of modulation, electromagnetic spectrum and typical applications, Unit V (Communication terminologies in communication
More informationITU Training on Conformance and Interoperability for AFR Regions CERT, 28 October 1 st November 2013, Tunis. EMC fundamentals
ITU Training on Conformance and Interoperability for AFR Regions CERT, 28 October 1 st November 2013, Tunis EMC fundamentals Karim.wakil@cert.mincom.tn Kais.siala@cert.mincom.tn 1 Basics of electromagnetics
More informationEssentia Electromagnetic Monitor Model: EM2
Essentia Electromagnetic Monitor Model: EM2 The Essentia EM2 was designed to bridge the gap between inexpensive monitors with limited response and expensive full spectrum units. It has a small, sensitive
More informationLab 9 RF Wireless Communications
Lab 9 RF Wireless Communications Figure 9.0. Guglielmo Marconi Midday at Signal Hill near St. John s, Newfoundland, in Canada, Guglielmo Marconi pressed his ear to a telephone headset connected to an experimental
More information