Title :
94 GHz Waveguide VCO for FMCW radar
Author :
Ko, Dong Sik ; Lee, Mun Kyo ; Lee, Sang Jin ; Moon, Sung Woon ; Ko, Du Hyun ; Bang, Seok Ho ; Baek, Yong Hyun ; Han, Min ; Choi, Seok Gyu ; Baek, Tae Jong ; Park, Dong Chul ; Kim, Sam Dong ; Rhee, Jin Koo
Author_Institution :
Millimeter-wave INnovation Technol. Res. Center, Dongguk Univ., Seoul
Abstract :
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.
Keywords :
CW radar; FM radar; Gunn diodes; cavity resonators; low-pass filters; varactors; voltage-controlled oscillators; waveguides; FMCW radar; GaAs; GaAs Gunn diode; VCO; cavity resonators; frequency 47 GHz; frequency 94 GHz; low pass filter; varactor diode; waveguide voltage controlled oscillator; Diodes; Frequency; Gallium arsenide; Gunn devices; Low pass filters; Power generation; Power harmonic filters; Radar; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Millimeter Waves, 2008. GSMM 2008. Global Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1885-5
Electronic_ISBN :
978-1-4244-1886-2
DOI :
10.1109/GSMM.2008.4534553
