Microwave Absorbers, Shielding Materials and Specialty Dielectrics Applications

Transcription

1 Microwave Absorbers, Shielding Materials and Specialty Dielectrics Applications 38GHz Radio provided by SierraCom

2 Foam Absorbers Rubber Absorbers Liquid & Sprayable Absorbers Flat, thin dielectric radar s, foam based. Products are either single or multi-layered foam that are electrically graded or separated by resistive films. Excellent broad-banded and off-angle performance. Some products have Fire Retardant versions available. Products are used for reducing RCS, preventing unwanted reflections and elimiting interference. Radar absorbing tiles or sheets that are tuned to specific frequencies or frequency bands. Materials are available in a selection of resins: silicone, urethane, nitrile and neoprene. Good for RCS reductions, anten sigl shaping, elimite unwanted RF energy in electronic modules. Coatings designed for suppression of RF waves and currents traveling along conductive surfaces, and for RCS reduction. Products are paint-like coatings that can be brushed or sprayed onto surfaces and complex shapes. Some products available as casting materials for suppression of energy in electronic units. Products are available in epoxy; silicone or urethane based resins. Thickness of material is dependent on frequency of use. Foam Absorbers Rubber Absorbers Product TB Number Function Operating Frequency Thickness Benefits C-RAM MT to 100 GHz 0.125" to 4.00" low cost insertion loss material C-RAM-MT FR lossy foam, suppression of RF energy meets UL to 100 GHz 0.125" to 4.00" fire retardant low cost, lossy, flexible foam C-RAM LF to 40 GHz 0.250" to 4.50" multi-layer graded carbon foam flexible sheet C-RAM AR low cost 2 to 100 GHz 0.125" & up reticulated, flexible high and standard performance grades C-RAM LPJ & RCJ RF 2 to 18 GHz 0.45" 0.85" 0.125" flexible and rigid Jaumann sheets C-RAM FDSS UHF frequency to 18 GHz 0.040" & up thin, flexible C-RAM FFS MHz to 5.0 GHz & up flexible magnetic sheet C-RAM GDSS to 18 GHz high loss magnetic sheet, flexible C-RAM GDX to 40 GHz high loss, dampen cavity resonces C-RAM FLX MHz to 65 GHz to 0.025" thin, flexible, tuned frequency magnetic sheet C-RAM RGD MHz to 18 GHz epoxy, rigid, high loss stock C-RAM modes sup 800 MHz 18 GHz 0.030" & up flexible, silicone high loss stock Cost low Low

3 Honeycomb & High Power Absorbers Syntactic Foam Anechoic Chambers & Absorbers Radar s designed to operate at high temperatures and power. Power ratings > 10 Watts/Inch 2, with proper ventilation can be handled. Materials are lightweight and can be used for structural strength and incorporated into the load-bearing parts of aircraft, ships and vehicles. Materials can be fabricated with pyramid shapes for use in anechoic chambers. Lightweight dielectric and artificial dielectric materials or lossy materials using microballons and resins. Dielectric properties are controlled to tight tolerances. Applications include airborne applications such as antens; underwater applications and decoys where low weight is a factor. Cuming Microwave Corporation offers an extensive line of high performance s, in convoluted and pyramid shape for maximum performance. These materials are designed for use in anechoic chambers, ranges and test boxes. Materials are available from 20 MHz to > 100 GHz. Cuming Microwave offers design, construction and turn-key installation of anechoic chambers. Liquid & Sprayable Ram Honeycomb & High Power Syntactic Foams RGD-S pression to C-RAM KR C-RAM KR-S C-RAM KFE to 2.0 GHz C-RAM KFS to 2.0 GHz C-RAM surface wave 3.0 GHz & up C-RAM 369 RT surface wave 3.0 GHz & up C-RAM HC high power/ applications 500 MHz to 40 GHz C-RAM high temperature 2000 F radar 2 to 18 GHz Epoxy dielectric values between 1.25 to 5.0 Cyate Ester dielectric values between 1.25 to 5.0 lossy or very low loss applications C-RAM SFC pyramidal 100 MHz & up C-RAM SFC high perform wedge 100 MHz & 0.125" to 18.0" cast-in-place/mold custom custom 2.0" to 72" 6.0" to 24" epoxy casting resin silicone casting resin epoxy casting resin for UHF frequencies magnetic silicone casting resin for UHF frequencies brush -on or sprayable iron epoxy surface wave coating room temperature cure surface wave coating, brush-on or sprayable honeycomb s flat sheet and pyramidal to high high temperature RF absorbing cement dielectric or lossy properties available. Stock sheets, castable or pack-in-place Moderate to dielectric or lossy properties available. Stock sheets, castable or pack-in-place. Low temperature curing Average to high pyramidal low to wedge low to mod

4 Dielectric Materials Specialty Products Materials with controlled dielectric constants and low loss tangents. Products have unique dielectric and physical properties, and are available in various forms; foam; rigid sheets, bars and rods; liquids and foam-in-place. Dielectric materials can be used for dielectric spacer or circuit substrate, tapered permittivity transition, radome, RF lens, or other uses where a machined part of a specific dielectric constant is needed. Cuming Microwave offers custom, engineered products for unique applications. Products and services include radar absorbing structures; application of peel & stick adhesive (PSA) for ease of assembly; die cut parts to customers drawings; and engineered products developed for applications where standard products don t meet the criteria. Cuming Microwave offers an RF PROBLEM SOLVER KIT for laboratory use. It includes many of the common products for quick lab evaluation. Anechoic Chamber Materials Dielectric Materials Wedge ance up C-RAM SFC-EM truncated for EMC chambers 60 MHz through 40 GHz 24", 30" and 36" C-RAM FAC convoluted 2 GHz & up 0.75" to 4.0" C-RAM FT low frequency 10 MHz & up 0.250" C-RAM EVA open cell for outdoor & ventilation applications 100 MHz & up 2.0" to 72" C-RAM CFC clean room s 100 MHz to 30 GHz 4.0" to 36" C-Stock AK adj. dielectric material K = dielectric substrates " to 3.0" (T) C-Stock Low K low dielectric constant K = " to 4.0" (T) C-Stock low loss sheet stock K = " to 6.0" (T) C-Stock RH low loss dielectric foam K = " to 2.0" C-Foam PF-2, flexible low loss foam K = " to 0.250" low profile and rugged high frequency ferrite tile high power & ventilation applications outdoor pyramidal clean room environment adjusted dielectric constant machible rigid, low density, for anten, waveguides easy to machine, waveguides and coaxial transmission lines low density, low dielectric properties, structural foam closed cell foam, dielectric substrates, radomes erate low to low

5 C u m i n g M i c r o w a v e C o r p o r a t i o n Cuming Microwave Corporation was formed to focus on technology products for the RF and the EMC industry. We manufacture materials, we design and install anechoic chambers for all RF and EMC applications, and we provide a team to offer full turn key solutions. Application - Material Guide In addition, we provide a very broad line of specialty products based on magnetic and dielectric lossy materials, and also provide low loss dielectric materials, for applications ranging from space to supersonic airborne to subsea val. Founded in 1980 by noted, material scientist Dr. William R. Cuming, Cuming Microwave Corporation provides innovative materials for the electronics and microwave industry. Our microwave material manufacturing facility is located in Avon, Massachusetts, USA. Cuming Microwave engages in extensive research and development activities to provide customers with cost-effective and creative materials for their specific applications. Custom engineered products and solutions are our specialty. Contact our local representative or find us on the web at Product Telecommunications Fiber Optics Wireless Anten Medical Defense C-RAM MT C-RAM-MT FR C-RAM LF C-RAM AR C-RAM LPJ & RCJ C-RAM FDSS C-RAM FFS C-RAM GDSS C-RAM GDX C-RAM FLX C-RAM RGD C-RAM RGD-S C-RAM KR C-RAM KR-S C-RAM KFE C-RAM KFS C-RAM 369 C-RAM 369 RT C-RAM HC C-RAM 325

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