A 5.8 GHz RF Receiver Front-End With 77.6 dB Dynamic Range AGC for a DSRC Transceiver

Reza E. Rad; Arash Hejazi; Sungjin Kim; Younggun Pu; Joon Tae Kim; Keum Cheol Hwang; Youngoo Yang; Kang-Yoon Lee

doi:10.1109/ACCESS.2022.3142913

IEEE Access (Jan 2022)

A 5.8 GHz RF Receiver Front-End With 77.6 dB Dynamic Range AGC for a DSRC Transceiver

Reza E. Rad,
Arash Hejazi,
Sungjin Kim,
Younggun Pu,
Joon Tae Kim,
Keum Cheol Hwang,
Youngoo Yang,
Kang-Yoon Lee

Affiliations

Reza E. Rad: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Arash Hejazi: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Sungjin Kim: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Younggun Pu: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Joon Tae Kim: ORCiD; Department of Electrical and Electronic Engineering, Konkuk University, Seoul, South Korea
Keum Cheol Hwang: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Youngoo Yang: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Kang-Yoon Lee: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea

DOI: https://doi.org/10.1109/ACCESS.2022.3142913
Journal volume & issue: Vol. 10
pp. 8133 – 8139

Abstract

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This paper presents a 5.8 GHz highly sensitive, high-dynamic-range RF receiver front-end with Automatic-Gain Control (AGC) and a high image-rejection for a Dedicated Short-Range Communication (DSRC) application. It is formed by a transceiver common matching, a single to differential Low-Noise Amplifier (LNA), an active mixer with an Image Rejection Filter, and an AGC unit. The proposed AGC unit is composed of a power-detector over the intermediate-frequency signals of the downconverter mixer. The power detector produces a wide dynamic range response signal, which eases the controllability of the AGC unit. In addition, external components are minimized, and area occupation is optimized. The proposed RF-FE is fabricated and measured in a 130-nm RF CMOS process. Experimental results show an overall dynamic range of 77.6 dB while a high sensitivity performance to an input power level of −85 dBm is measured. An overall gain of 26.4 dB for the RF-FE is obtained. The input referred P1dB is measured to be around −28.3 dBm. The 2-stage RC poly-phase filter that is applied to reject the image signal results in a maximum image rejection ratio of 39 dB.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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