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Narda has introduced a family of directional couplers that deliver exceptional performance over frequency ranges as wide as 1 GHz to 40 GHz. These couplers are well suited for electronic warfare, radar, communications and test equipment applications.

There are four directional couplers in the family: The model 4018-20 covers 18 GHz to 40 GHz with coupling of 20 dB ±1.25 dB, frequency sensitivity of ±0.8 dB, and an insertion loss of 1.45 dB. It can handle an input power of 30 W average and 3 kW peak. The model 4018-10 also covers 18 GHz to 40 GHz, with coupling of 10 dB ±1.25 dB, frequency sensitivity of ±0.8 dB, insertion loss of 2.0 dB, and a 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 GHz 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 the model and are available for immediate delivery.