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Hauppauge, NY -- Narda Microwave-East, an L-3 Communications company, has introduced a family of directional couplers that delivers performance over frequency ranges as broad as 1 to 40 GHz. They are suitable for electronic warfare, radar, communications, and test equipment applications.

There are four directional couplers in the family: the Model 4018-20, which covers 18 to 40 GHz with coupling of 20 dB +/-1.25 dB, frequency sensitivity of +/-0.8 dB, and insertion loss of 1.45 dB, can handle input powers of 30 W average and 3 kW peak. The Model 4018-10 also covers 18 to 40 GHz, with coupling of 10 dB +/-1.25 dB, frequency sensitivity of +/-0.8 dB, insertion loss of 2.0 dB, and power handling ability of 30 W average and 3 kW peak. Both couplers have maximum input and output VSWR of 1.9:1, directivity of 12 dB, and weigh only 1 oz.

The Model 4229-10 covers 1 to 40 GHz with coupling of 10 dB +/-1.5 dB, frequency sensitivity of +/-1.0 dB, insertion loss of 2.4 dB, and power handling ability of 20 W average and 3 kW peak. Directivity is at least 12 dB and maximum input and output VSWR is 1.75 dB. The couplers are available with either 2.9-mm or 1.85-mm connectors (depending on model) and are available for immediate delivery.