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A Study on the Realization of Broadband frequency Multiple VCO for Multi-Band Radar Detector  

Park Wook-Ki (인하대학교 전자공학과 초고주파 및 항공전자통신 연구실)
Kang Suk-Youb (인하대학교 전자공학과 초고주파 및 항공전자통신 연구실)
Go Min-Ho (인하대학교 전자공학과 초고주파 및 항공전자통신 연구실)
Park Hyo-Dal (인하대학교 전자공학과 초고주파 및 항공전자통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.10A, 2005 , pp. 971-978 More about this Journal
Abstract
In this paper, we design and fabricate a VCO(Voltage Controlled Oscillator) for radar detector of X/K/Ka band using frequency multiplier. The existing VCO operated in radar detector have many Problems such as narrow bandwidth, slow frequency variable rate, unstable of production due to high frequency. So we design and fabricate a VCO improved such problems using frequency multiplier. As a result of measure, investigated frequency multiple VCO show its output power 3.64 dBm at multiplied operating frequency 11.27 GHz and have wide frequency tuning range of 660 MHz by controlled voltage 0V to 4.50 V applied diode. And also its phase noise is -104.0 dEc at 1 MHz offset frequency so we obtain suitable performance for commercial use.
Keywords
Radar Detector; Frequency Multiplier; VCO; Multi-Band; Oscillator;
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