Couplers cut the cost of microwave measurements

A new series of single directional couplers provide an economical means of measuring microwave power in commercial mobile-phone infrastructure and test systems.

Narda Microwave has launched a new series of single directional couplers that provide an economical means of measuring microwave power in commercial mobile-phone infrastructure and test systems.

Available in the UK through Link Microtek, the 3151/61 and 4151/61 series low-cost couplers come in a variety of models covering frequency ranges of 820-980MHz or 1.7-2.1GHz, with coupling coefficients of 10, 20 or 30dB and a typical flatness of +/-0.2dB.

They can be specified with either SMA or Type N connectors.

A high directivity of typically 25dB makes the devices suitable for high-accuracy measurements, and they also offer low intermodulation, a low primary VSWR of typically 1.12:1, and insertion losses as low as 0.1dB.

Excluding connectors, the new couplers have dimensions of 49.78 x 27.18mm, with lengths of either 78.49 or 114.30mm depending on the model.

All versions are available from stock.

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