Microwave Journal
www.microwavejournal.com/articles/31828-waveguide-isolator-iso-w-4600-800-187
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Waveguide Isolator: ISO-W-4600-800-187

January 11, 2019

Exceed Microwave’s ISO-W-4600-800-187 is a waveguide isolator with a passband covering 4.2 to 5 GHz, achieving insertion loss less than 0.1 dB and return loss and isolation better than 23 dB. The passband of the ISO-W-4600-800-187 covers the n79 5G frequency band (4.4 to 5 GHz), as well as the 4.2 to 4.4 GHz aeronautical radionavigation band.

The low insertion loss makes the isolator well suited for protecting power amplifiers from reflective loads. The isolator can handle power levels as high as 50 kW peak, 2 kW CW and is specified to operate from −20°C to +75°C. To achieve such low loss, the isolator is a WR187 waveguide design fabricated with aluminum 6061-T6 and silver plated for high electrical conductivity. The size of the unit is 5.1 in. x 6.25 in. x 2.5 in., and it weighs 1 kg.

Exceed Microwave is developing low insertion loss, waveguide circulators and isolators to WR28 (26.5 to 40 GHz), all designed, assembled and tested at the company’s facility in Torrance, Calif. Exceed Microwave also designs and manufactures other custom, high performance passive waveguide and coaxial components for defense, space and commercial applications. Waveguide products include the WZ series low loss filters, WC series compact filters, notch filters with broad passbands and phase equalizers. Exceed’s coaxial products include lowpass, bandpass and notch filters and electro-mechanical switches to 40 GHz, with existing designs encompassing SPST and DPDT to SP12T.

Exceed Microwave’s engineers work directly with customers, providing immediate response to find the optimum solution and striving to always provide the highest performing components. The company is AS9100 certified.

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