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T/R Switch Handles 50-W CW Power

Feb. 13, 2007

By relying on a proprietary multi-octave technology, a family of high-power transmit/receive (T/R) switches promises to be compatible with the latest gallium-nitride (GaN) and LDMOS solid-state amplifiers. The switches cover the 20-to-2500MHz band. The model M20-064 T/R switch, for example, is capable of handling up to 100 W with a low insertion loss of 1.0 dB maximum. Its output voltage-standing-wave ratio (VSWR) is less than 1.42:1. The switch operates from –40° to +85°C. The switches are built on ceramic substrate in a thermally efficient aluminum package. For noise immunity, a built-in driver circuit interface is TTL or RS-422.

Hill Engineering Division, Comtech PST, 417 Boston St., Topsfield, MA 01983; (978) 887-5754, FAX: (978) 887-7244, Internet: www.hilleng.com

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About the Author

Nancy Friedrich | RF Product Marketing Manager for Aerospace Defense, Keysight Technologies

Nancy Friedrich is RF Product Marketing Manager for Aerospace Defense at Keysight Technologies. Nancy Friedrich started a career in engineering media about two decades ago with a stint editing copy and writing news for Electronic Design. A few years later, she began writing full time as technology editor at Wireless Systems Design. In 2005, Nancy was named editor-in-chief of Microwaves & RF, a position she held (along with other positions as group content head) until 2018. Nancy then moved to a position at UBM, where she was editor-in-chief of Design News and content director for tradeshows including DesignCon, ESC, and the Smart Manufacturing shows.