News

Gunn Oscillator Fires At F-Band

July 13, 2012

Millimeter-wave frequencies offer generous bandwidth—not available at lower frequencies—for high-data-rate, short-range, and line-of-sight radio applications.

Jack Browne

Millimeter-wave frequencies offer generous bandwidth-not available at lower frequencies-for high-data-rate, short-range, and line-of-sight radio applications. To support millimeter-wave links and test equipment at those higher frequencies, SAGE Millimeter, Inc. has developed its model SOM-10401317-08-S1 free-running F-band Gunn oscillator for use from 90 to 140 GHz. The mechanically tuned signal source is available with a tuning range of ±0.5 GHz and delivers +17 dBm output power across the tuning range. The oscillator is based on a reliable GaAs Gunn diode. It achieves mechanical tuning by means of a self-locking tuning screw or micrometer. The oscillator, which requires a bias supply of typically 750 mA at +4.5 VDC, is also tunable via an applied bias; this supports frequency modulation on a carrier. For increased frequency stability, the Gunn oscillator can be supplied with an optional heater, which requires heating power to 5 W at a single bias supply of +10 VDC. Gunn-diode-based oscillators are also available for use at Ka, Q, U, V, E, and W frequency bands.

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.