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학술지 Image-Rejection Receiver Using On-Chip Active Notch Filters for 2.4-GHz Band Wireless Communication Applications
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저자
강호용, 웬충기엔, 표철식, 장윤선
발행일
201303
출처
Analog Integrated Circuits and Signal Processing, v.74 no.3, pp.577-584
ISSN
0925-1030
출판사
Springer
DOI
https://dx.doi.org/10.1007/s10470-012-0005-7
협약과제
12IC1300, 초절전 센서네트워크 핵심기술개발, 표철식
초록
This paper presents the design and experimental results of image-rejection (IR) receiver front-end for 2.4-GHz band applications. The proposed IR-receiver front-end integrates a third-order active notch filter into each of conventional cascode low noise amplifier and down-conversion mixer to achieve high image-rejection ratio (IRR). The image signal is suppressed and the wanted signal is maximized due to series and parallel resonator effects of the notch filter, respectively. Consequently, the proposed IR-receiver front-end implemented in a standard 0.18 μm CMOS technology has the power gain of 21.5 dB, the noise figure of 3.5 dB, the input third order intermodulation product of -15 dBm and the IRR of 56 dB. The IR-receiver front-end dissipates a total of 5.5 mA from supply voltage of 1.8 V. © Springer Science+Business Media, LLC 2012.
키워드
Image-rejection, Notch filter, Receiver, RFIC
KSP 제안 키워드
CMOS Technology, Down-conversion mixer, GHz band, Noise Figure(NF), On-chip, Power gain, Rejection ratio, Supply voltage, Wireless communication applications, active notch filter, image rejection