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3 dB Hybrid Couplers Serve Defense Applications

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Narda, an L-3 Communications company, has introduced two 90-degree “mini-hybrid” 3 dB couplers that combine high isolation with extremely compact size and the ability to meet military specifications for temperature, shock and vibration. The Model 4031C operates from 500 MHz to 1 GHz with isolation of at least 30 dB, insertion loss of less than 0.2 dB, and maximum VSWR of 1.25:1. The coupler maintains amplitude balance of +/-0.6 dB and phase balance of 5 degrees. Model 4034C operates from 4 to 8 GHz with isolation of at least 20 dB and insertion loss of less than 0.3 dB, and maintains amplitude balance of +/-0.6 dB and phase balance of 10 degrees.

Narda Microwave, Hauppauge, NY. (631) 231-1700. [www.nardamicrowave.com/east].

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