| A Design Method of the 94GHz(W-Band) Waveguide Harmonic Voltage Controlled Oscillator for the Armor Sensor |
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Jin-Eep Roh, Jae-Hyun Choi, Jun-Wen Li, Bierng-Chearl Ahn |
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2Chungbuk National University |
| 장갑표적 감지센서용 94GHz 도파관 하모닉 전압조정발진기 설계 기법 |
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노진입, 최재현, 리준문, 안병철 |
1국방과학연구소
2충북대학교 |
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| Abstract |
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In this paper, we propose a design method of the millimeter-wave(W-Band) waveguide cavity harmonic voltage controlled oscillator(VCO) using a Gunn diode for the armor sensor. Using the 3-dimensional simulation tool(Ansoft $HFSS^{TM}$), we were able to find the impedance matching point between waveguide and Gunn diode and estimate the oscillation frequency. A varactor diode is used for the frequency tuning, and we find out the equation for the calculation of the tunable frequency range. The designed VCO shows good performances; 17dBm output power at 94GHz center frequency, 520MHz frequency tuning range similar to the estimated value(480MHz). |
| Key Words:
Voltage Controlled Oscillator, Waveguide Cavity, GaAs Gunn Diode, Varactor diode |
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