Escuela Técnica Superior de Ingenieros de Telecomunicación de la Universidad Politécnica de Madrid. Avenida Complutense nº30, Madrid (SPAIN)

Transcription

1 Presentation of the background of the Radiation Group of the Technical University of Madrid (GR UPM) Escuela Técnica Superior de Ingenieros de Telecomunicación de la Universidad Politécnica de Madrid. Avenida Complutense nº30, Madrid (SPAIN) 1 Outline and services. 1

2 Radiation Group: Presentation Full Professors: Prof. José Luis Besada Sanmartín Prof. Miguel Calvo Ramón Prof. Manuel Sierra Pérez 2 Laboratory engineers 2 Technicians 1 Secretary Associate Professors: Prof. José Luis Fernández Jambrina Prof. Leandro de Haro Ariet Prof. Belén Galocha Iragüen Prof. Manuel Sierra Castañer Prof. Ramón Martínez Rodríguez Osorio 2 Postdoc 15 PhD Students 15 Master thesis students Radiation Group: Research Lines Antenna design and prototyping of different technologies: Wire and planar antennas, horn antennas, arrays and reflectors. Antenna Measurement Activities: R&D and Systems Design. External Measurements through LEHA UPM. Smart Antennas and MIMO systems: Design, prototyping and measurement. Simulation of Communication Systems for performance evaluation and Rapid Prototyping. 2

3 Radiation Group: Services R&D for public and private institutions in antenna measurement, antenna design, signal processing for antennas, and performance evaluation in Communication Systems. Engineering, training and Consultancy for the industry. Antenna Measurement Services (LEHA UPM) for industry, for research and for training. Antenna Measurement test facilities: LEHA-UPM Arc System (1982) Semi Anechoic System Measurements of Antennas on scaled ship (1:50 and 1:100 models). Dimensions: 6.5 x 5.5 x 2.7 m. Rotary table: m. Frequency band: 200 MHz 3 GHz. Positioning system: azimuth for ship and elevation for probe. The system allows an acquisition in a semi spherical near field. Electromagnetic Compatibility Models BAZAN 3

4 Antenna Measurement test facilities: LEHA-UPM Near Field Spherical System (1985): Dimensions: 7.3 x 4.3 x 4.3 m. Frequency band: GHz. ORBIT Controller and positioners. Agilent HP8530A VNA. Approved for Space Measurements (ESA) at 5.3GHz using ERS panel. AUT Positioner. Roll over Azimuth on longitudinal table Polarization Positioner Antenna Measurement test facilities: LEHA-UPM Gregorian Compact Range (1995): AUT Plane phase front Parabolic Reflector D=4.5 m Elliptic Sub-reflector Double chamber Gregorian System feeder Main Chamber: 15L x 8W x 7.5H m. Subreflector Chamber: 6 x 3 x 2.4 m. Frequency Band: GHz. Quiet Zone: 3 m diameter. Amplitude Ripple: 0.5 db peak to peak. Phase Ripple: ± 5º. Crosspolar Level: < 38 db. Peak surface accuracy of reflectors: better than ± 70 m. 4

5 Antenna Measurement test facilities: LEHA-UPM Planar System (2002): 3 high precision linear elements assure the scanner high precision. The lower horizontal guide is a linear ball spline, that allows a free rotation of the vertical tower. The tower leans on the upper horizontal guide. Scan area: 4.75 x 4.75 meters. Frequency band: GHz. Velocity: 10cm/sec (Horizont. axis), 33cm/sec (Vertical axis). Rectitude for basement and vertical tower: 150 m(peak to peak value). Planarity for the planar scanner: Z rms error <0.1 mm. Antenna Measurement test facilities: LEHA-UPM Cylindrical and Spherical System (2004): Sharing elements with the planar system. Cylindrical: AUT on Azimuth positioner and probe on scanner y axis. Spherical system: AUT on Roll over Azimuth. Frequency band: 1 40 GHz. Linear slide to adjust measurement distance. 5

6 Antenna Measurement Services: LEHA-UPM Satellite antennas measurement for EADS CASA, RYMSA, TTI: Hispasat A, Hispasat Amazonas, Hispasat 1E satellites, ASAR panels for Envisat, ASTRA 3B, Antennas for Venus and Mars Express. Cellular Telephony Systems: Telefónica Móviles Homologation Laboratory for antennas and radome structures. Measurement of Vodafone Global BTS antennas. Measurement of Earth stations for satellite communications for INDRA... Measurement of focalization systems for radio telescopes. RCS measurements, Antennas on ship s models... Working on Antenna Measurement Systems since 1980 s. ISO Accreditation by ENAC Antenna Measurement Services: LEHA-UPM 1. Satellite antennas, 2. Radomes, 3. Transmitarrays, Reflectarrays, 4. Dipoles and dipoles in cavity, 5. Radial waveguide slot antenna, 6. Patch antennas, 7. Logperiodic antenna, 8. Dichroic reflector, 9. Antennas on ship models, 10. Horn antennas, 11. PIFA, 12. Antennas for high speed trains, 13. Antennas for RADAR application. 6

7 Radiation Group: R&D and Engineering Radiation Group: R&D and Engineering Antenna structure Frequency MHz Polarization linear V.S.W.R 1.67:1 Antenna with radome Naval Radar Terrestrial Radar 7

8 No se puede mostrar la imagen. Puede que su equipo no tenga suficiente memoria para abrir la imagen o que ésta esté dañada. Reinicie el equipo y, a continuación, abra el archivo de nuevo. Si sigue apareciendo la x roja, puede que tenga que borrar la imagen e insertarla de nuevo. No se puede mostrar la imagen. Puede que su equipo no tenga suficiente memoria para abrir la imagen o que ésta esté dañada. Reinicie el equipo y, a continuación, abra el archivo de nuevo. Si sigue apareciendo la x roja, puede que tenga que borrar la imagen e insertarla de nuevo. Radiation Group: R&D and Engineering Dg Short-circuit Specifications Frequency Elevation coverage ẑ ŷ xˆ GHz 10º to +30º over horizontal line hs hg ds hd wd dc lc Slot pair Cylindrical waveguide Coaxial inner conductor Waveguide discontinuity Coaxial cable Azimuth coverage Omnidirectional Antenna structure Polarization RHCP V.S.W.R 2:1 Axial Ratio < 6 db Conformal slot array with circular polarization for a signal identification system in millimetric band. Radiation Group: R&D and Engineering 8

9 Radiation Group: R&D and Engineering Conectores de medida de transmisión Gúía Guía de alimentación Normalized S 21 [db] X = 0 mm foam Z X X = 50 mm X = 79.5 mm Conector de entrada Simulated and measured results with PEC sidewalls Simulation (z = 0) Simulation (z = 2*lambda_g) Simulation (z = 3*lambda_g) Measurements (z = 0) Measurements (z = 2*lambda_g) Measurements (z = 3*lambda_g) Y position [mm] f = GHz Artificial Magnetic Conductors enhancing the Wave Propagation in Oversized Parallel-Plate Waveguides for Planar Antenna Applications Normalized S 21 [db] Simulated and measured results with AMC sidewalls Simulation (z = 0) Simulation (z = 2*lambda_g) Simulation (z = 3*lambda_g) Measurements (z = 0) Measurements (z = 2*lambda_g) Measurements (z = 3*lambda_g) Y position [mm] f = GHz PEC or AMC sidewalls Planar Left-Handed Lens for Plane TEM Wave Excitation in Parallel- Plate Slot Antennas Guía ranurada de alimentación Conectores de medida de transmisión 318 mm 330 mm Y X Conector de entrada Radiation Group: R&D and Engineering Designed for UMTS system. Plug&play, no dependence with the Base Station manufacturer. 4-element array. Adaptive radiation pattern (azimuth) Optimization of SINR, using beamforming techniques (adaptive algorithms) Real time operation (FPGAs + DSPs for signal processing modules). Possibility of being updated, thanks to SDR reconfiguration. Antenna module RF and signal processing modules SDR platform (Multi-DSP boards and FPGA) 9

10 Radiation Group: R&D and Engineering General scheme: MIMO-OFDM Testbed which works at f=2.45 GHz. Modules: antenna, radiofrequency (RF) y signal processing (real-time and off-line). TX RX Radiation Group: R&D and Engineering RCS Measurements of Scaled Model the Compact Range Field Measurements to validate the developed prediction SW 10

11 Antenna Measurement Turn key projects 1. Compact Range: LEHA UPM, TTI Norte. 2. Planar Near Field System: LEHA UPM, EADS CASA, DGTEL. 3. Spherical Near Field System: LEHA UPM, TTI, UNIOVI, CATECHOM UAH, UNIV.SEVILLA, EADS CASA, RYMSA. Spherical Near Field System and Compact Range: TTI-Norte (2010) Spherical Near Field System: UNIOVI (2002) Antenna Measurement Turn key projects 4. Cylindrical Near Field System: CEAR (2007), LEHA UPM. 5. Special Measurement System: Linear System for RADAR antennas (INDRA 2005). Antennas on scaled ship models (LEHA UPM). 11

12 GR-UPM: Summary Working since /year in projects with Companies /year in projects with public funding. 12 patents during the last 5 years. GR-UPM: Summary GR-UPM is within the 10 best Research groups of UPM. 12