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A low-power-consuming SOM for wireless communications

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2 Author(s)
Ghanevati, M. ; Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA ; Daryoush, A.S.

This paper presents theoretical and experimental results of a low-power-consuming hybrid push-pull self-oscillating mixer (SOM) circuit at the UHF frequency band. The frequency-stable SOM circuit is designed and fabricated using matched-pair Si bipolar junction transistors and high-Q resonators, where measured phase noise of this free-running voltage-controlled oscillator is -101.2 dBc/Hz at 100-kHz offset. A 20-dB up-conversion gain, a compression dynamic range (CDR) of 65 dB·MHz, and a spurious-free dynamic range of 50 dB·MHz 2/3 are also measured for the mixer portion of this SOM. Moreover, a down-conversion gain of ≈-2 dB with a CDR of 100 dB·MHz is also measured

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:49 ,  Issue: 7 )