A 1-V 2-GHz RF Receiver with 49 dB of Image Rejection in CMOS/SIMOX(<特集>Special Section on Analog Circuit Techniques and Related Topics)
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概要
- 論文の詳細を見る
A 1-V 2-GHz receiver that exhibits an image rejection of 49 dB is described. It consists of a low-noise amplifier, a quadrature mixer and on-chip polyphase filters, and was fabricated by 0.2-μm fully depleted CMOS/SIMOX technology. The quadrature mixer employs an LC-tuned folded structure with a common RF input for I and Q channels. This enables 1-V operation, suppresses phase errors in LO signals, and improves the image-rejection performance by about 15-dB compared to a conventional quadrature architecture. The current source of the single-to-balance converter at the mixer input consists of a transistor and an LC tank in a cascode configuration. This enhances its output impedance and improves its common-mode-rejection ratio (CMRR) and the IIP2 characteristics of the receiver. The chip consumes 12mW with 1-V power supply. The receiver provides an NF of 10dB with an 11P3 of -15.8dBm and IIP2 of 12.3 dBm.
- 社団法人電子情報通信学会の論文
- 2002-02-01
著者
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TSUKAHARA Tsuneo
NTT Telecommunications Energy Laboratories
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KODATE Junichi
NTT Telecommunications Energy Laboratories
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Ugajin Mamoru
Ntt Microsystem Integration Laboratories Ntt Corporation
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Ugajin Mamoru
Ntt Telecommunications Energy Laboratories
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Kodate J
Ntt Telecommunications Energy Laboratories
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Tsukahara T
Ntt Microsystem Integration Laboratories Ntt Corporation
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Kodate J
Ntt Microsystem Integration Laboratories Ntt Corporation
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