Receiver Protectors

Product Data Sheets

CPI’s Beverly Microwave Division (CPI BMD) has been designing and manufacturing receiver protector (RP) products at its Beverly, Massachusetts location continuously for over 60 years. CPI BMD is the largest and most sophisticated manufacturer of such products in the world today. Its RP products may be found in military and commercial radar systems in the U.S. and throughout the world.

Current design capability spans the spectrum from low-frequency coaxial limiters to complete pre-TR, TR limiters with multi-function capability at frequencies up to Ka-band. CPI BMD's products are manufactured in all transmission line types, including waveguide, coax, stripline and microstrip. Sophisticated computer-aided modeling techniques leveraging the industry’s most extensive product portfolio have made it possible for CPI BMD to achieve performance levels that would have been unheard of only a few years ago. CPI BMD's comprehensive low and high-power test facilities allow for complete verification of specified performance parameters.

Articles relating to receiver protector theory and application may be found in the Technical Library on this website.

The RP Specification Sheet (see link above under Related Documents) may be useful to assist you in generating a list of desired specifications for your application.

Multi-function Options
In addition to their normal receiver protector function, there are a number of other functions that may be integrated into an RP for better overall system performance.
•   Variable attenuation with analog or digital control
•   RF gate capability
•   Excess noise generation
•   BITE / fault monitoring
•   Integrated LNA
•   Integrated coupler
•   Integrated filters

Special Features
Depending upon other performance characteristics, many receiver protectors can be designed with the following features:
•   Long-life, high-power plasma limiters – up to 150,000 hours operating life
•   Absorptive receiver protectors which exhibit low VSWR in all functional states
•   Super-fast recovery time
•   Liquid cooling for ultra-high average power performance

Examples of some of CPI BMD’s many receiver protectors are described in data sheets that are accessible through the Product Bulletins (see link at top of page). CPI BMD has designed and manufactured over 2000 different receiver protector models over the last 60 years. The examples included on our website are a small fraction of our available products. Please contact CPI BMD for your specific requirements.

Please contact CPI BMD with your specific needs.
Tel: +1 (978) 922-6000 or +1 (978) 922-6004
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