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A New Structure Frequency Doubler Using Phase Delay Line  

Cho, Seung-Yong (광운대학교 전파공학과 초고주파연구실)
Lee, Kyoung-Hak (한국산업기술평가원)
Kim, Yong-Hwan (광운대학교 전파공학과 초고주파연구실)
Do, Ji-Hoon (광운대학교 전파공학과 초고주파연구실)
Lee, Hyung-Kyu (광운대학교 전파공학과 초고주파연구실)
Hong, Ui-Seok (광운대학교 전파공학과 초고주파연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.2A, 2007 , pp. 213-219 More about this Journal
Abstract
In this paper, A novel structure of frequency doubler using Phase Delay line and $90^{\circ}$ Hybrid coupler at harmonic output have been designed and implemented to improve suppression. Proposed structure of frequency doubler improve output. coupling and fundamental suppression. Active frequency doubler with band from $2.13{\sim}2.15GHz\;to\;4.26{\sim}4.3GHz$ was designed and fabricated with 10dBm input power, 0.79dB conversion gain and -55.54dBc suppression at fundamental frequency, -44.76dBc suppression at third harmonic frequency 6.42GHz and -39.18dBc suppression at fourth harmonic frequency 8.56GHz.
Keywords
Frequency multiplier Frequency doubler; Output coupling; Harmonic suppression; Conversion gain;
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