Waveguide couplers and switches

18 April 2012 Telecoms, Datacoms, Wireless, IoT

The AM-C series of broad-wall waveguide couplers from Link Microtek feature high directivity of up to 45 dB and a low main-line VSWR of 1,06:1, making them ideal for accurate measurement of power levels in microwave systems.

Offered in a wide range of rectangular and double-ridge sizes covering frequencies from 1,12 to 40 GHz, the devices have very flat and precise coupling values over the full band, with both mean coupling and frequency sensitivity specified as ±0,5 dB.

The couplers are available with either waveguide flange outputs or a variety of different connectors, including SMA, N-type and TNC. Standard coupling values are 3, 6, 10, 20, 30 and 40 dB. They are fabricated as standard from lightweight Alochromed aluminium and can also be supplied in brass or other materials to special order.

Also new from the manufacturer is a series of waveguide switches that offer environmental sealing to IP65, enabling them to operate reliably even when subjected to dusty or moist environmental conditions. Primarily aimed at automatic transfer applications in redundancy systems, the AM-WGS series switches are particularly suitable for use at civil or military satellite communications ground stations.

The devices are available in a wide range of rectangular waveguide sizes covering microwave frequencies from 2,6 to 40 GHz, typically for applications in the C, X, Ku and Ka bands. Incorporating a small, lightweight motor, these electrically actuated switches offer tell-back functionality to confirm switch status and can also be operated manually in the event of a localised power failure.

They can be specified with a 12 or 28 V operating voltage and a choice of connectors such as SMA, N-type and TNC. Optional features include choke flanges, pressurised waveguide sections, and failsafe or latching operation.

The AM-WGS waveguide switches are fabricated from lightweight Alochromed aluminium and use an industry-standard footprint to ensure compatibility with other suppliers’ products. In addition to the standard range, the manufacturer can supply bespoke designs to meet customers’ specific requirements.

For more information visit www.linkmicrotekeng.com

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