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Waveguide LNA Cuts Noise In Ka-Band

Aug. 19, 2010

Model AMFWW-5F-22502357-140-WR34 from MITEQ is the latest addition to the firm's family of waveguide low-noise amplifiers (LNAs). It is supplied with WR34 input and output waveguide ports for use from 22.5 to 23.6 GHz. The LNA provides 45 dB gain that is flat to 1 dB or better across the full frequency range. Measuring only 2 in. long and 0.75. in. wide and high, the waveguide LNA achieves maximum noise temperature of 140 K, but close to only 100 K at 23 GHz. It draws less than 100 mA from a single supply of +8 to +15 VDC. The LNA delivers +13 dBm output power at 1-dB compression and has maximum input/output VSWR of 2.0:1.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.