A W -Band wide locking range and low dc power injection-locked frequency tripler using transformer coupled technique

Yen Liang Yeh, Hong Yeh Chang

研究成果: 雜誌貢獻期刊論文同行評審

48 引文 斯高帕斯(Scopus)

摘要

A W-band wide locking range injection-locked frequency tripler (ILFT) with low dc power consumption is presented in this paper. By using a transformer coupled (TC) topology, the proposed TC-ILFT features the following advantages: 1) the negative resistance of the cross-coupled pair is not degraded due to the proposed TC-ILFT without source degeneration, and the TC-ILFT can be operated in lower dc supply voltage as compared to the conventional ILFTs; 2) the dc bias of the injector can be properly designed for maximizing locking range; 3) the parasitic capacitance provided by the injector can be reduced due to the impedance transformation; and 4) the larger device size of the injector can be chosen enhancing the third harmonic. Moreover, the operation frequency and the locking range of this work are boosted using a multiorder resonator. A theoretical model of the proposed TC-ILFT is also established and it has been carefully verified with the experimental results. The free-running oscillation frequency of the proposed TC-ILFT is 94.51 GHz. As the input power is -1 dBm, the measured locking range is 5.9 GHz without varactor tunning. The dc supply voltage and the power consumption are 0.7 V and 1 mW, respectively.

原文???core.languages.en_GB???
文章編號6403900
頁(從 - 到)860-870
頁數11
期刊IEEE Transactions on Microwave Theory and Techniques
61
發行號2
DOIs
出版狀態已出版 - 2013

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