A Sub-Harmonic RF Transmitter Architecture with Simultaneous Power Combination and LO Leakage Cancellation(Session 3B : High Speed and High Frequency Applications 1)
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概要
- 論文の詳細を見る
A sub-harmonic RF transmitter architecture with simultaneous power combination and carrier-leakage cancellation is proposed. It employs a 8-phase voltage controlled oscillator (VCO) for quadrature modulations, sub-harmonic mixers, driver amplifiers, and a 180° balun. A signal power is combined with its 180° phase-shifted signal through the 180° balun. Simultaneously carrier-leakage generating in sub-harmonic mixers is canceled by its phase difference. Therefore, the proposed transmitter improves its linearity and signal-to-carrier-leakage ratio. Fabricated in a 0.18 μm CMOS process, it achieved 1 dBm output 1 dB compression point (P-1dB) under 1.8 V supply and -40 dBm carrier-leakage in 5 GHz band.
- 2010-06-23
著者
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BURM Jinwook
Dept. of Electronic Engineering, Sogang University
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SONG Bongsub
Dept. of ELectronic Engineering, Sogang University
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KIM Dohyung
Mixed Signal Core Design Team, Samsung Electronics
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Kim Dohyung
Mixed Signal Core Design Team Samsung Electronics
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Song Bongsub
Dept. Of Electronic Engineering Sogang University
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Burm Jinwook
Sogang Univ. Seoul Kor
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Burm Jinwook
Dept. Of Electronic Engineering Sogang University
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