94 GHz Waveguide VCO for FMCW radar

In this paper, we designed and fabricated waveguide voltage controlled oscillator (VCO), which have a center frequency of 94 GHz using the GaAs Gunn diode, varactor diode, and two bias posts with low pass filter (LPF). The cavity is designed for fundamental mode at 47 GHz and operated second harmoni...

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Bibliographic Details
Published in2008 Global Symposium on Millimeter Waves pp. 44 - 47
Main Authors Dong Sik Ko, Mun Kyo Lee, Sang Jin Lee, Sung Woon Moon, Du Hyun Ko, Seok Ho Bang, Yong Hyun Baek, Min Han, Seok Gyu Choi, Tae Jong Baek, Dong Chul Park, Sam Dong Kim, Jin Koo Rhee
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2008
Subjects
Diodes
Frequency
Gallium arsenide
Gunn devices
Low pass filters
Power generation
Power harmonic filters
Radar
Varactors
Voltage-controlled oscillators
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Summary:In this paper, we designed and fabricated waveguide voltage controlled oscillator (VCO), which have a center frequency of 94 GHz using the GaAs Gunn diode, varactor diode, and two bias posts with low pass filter (LPF). The cavity is designed for fundamental mode at 47 GHz and operated second harmonic VCO of 94 GHz center frequency. The fabricated VCO has 1.74 GHz bandwidth, 671 MHz linearity for 2.28% and 14 dBm output power. The highest output power is 15.58 dBm at 94.38 GHz.
ISBN:9781424418855
1424418852
DOI:10.1109/GSMM.2008.4534553