High-Sensitivity, Low-Power IR-UWB Radar Transceiver With Self-Interference Resistance for Child Presence Detection and Precision Positioning

IF 4.6 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Journal of Solid-state Circuits Pub Date : 2025-02-19 DOI:10.1109/JSSC.2025.3541274

Hyun-Gi Seok;Wan Kim;Sinyoung Kim;Jae-Keun Lee;Geunhaeng Lee;Chanho Kim;Wonkang Kim;Jongpil Cho;Seungyong Bae;Youngsea Cho;Wonjun Jung;Junhyeong Kim;Sumin Kang;Hyeokju Na;Byoungjoong Kang;Honggul Han;Hoon Kang;Chiyoung Ahn;Sukjin Jung;Hyukjun Sung;Seunghyun Oh;Jongwoo Lee;Joonsuk Kim

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引用次数: 0

Abstract

This article presents a radar-enabled impulse radio ultrawideband (IR-UWB) system by adopting a self-interference-resistant RF transceiver. It demonstrates that child presence detection (CPD) using IR-UWB radar is feasible through the implementation of a radar system that includes physical (PHY), media access control (MAC), and application (APP) processors. The RF transceiver shows high receiver (RX) sensitivity and high transmitter (TX) peak power with low power. In addition, a radar-dedicated TX is used to improve the TX signal isolation to the RX. To achieve the high RX chain gain and low noise figure (NF) of RX, an RX front end (RX-FE) [low-noise amplifier (LNA) and voltage-to-current (V2I)] with a 50% duty cycle local oscillator (LO) is implemented. Furthermore, a notch pulse shaping filter (PSF) technique is proposed to meet spectrum emission mask (SEM) specifications with low power consumption. An LNA with wide gain ranges is also proposed to improve the sensitivity and support various applications related to radar and positioning applications. The UWB transceiver achieves −96.5-dBm sensitivity at BPRF 6.81 Mb/s and 14-dBm TX peak power and supports radar operation with UWB channels 5 and 9.

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来源期刊

IEEE Journal of Solid-state Circuits 工程技术-工程：电子与电气

CiteScore

11.00

自引率

20.40%

发文量

351

审稿时长

3-6 weeks

期刊介绍： The IEEE Journal of Solid-State Circuits publishes papers each month in the broad area of solid-state circuits with particular emphasis on transistor-level design of integrated circuits. It also provides coverage of topics such as circuits modeling, technology, systems design, layout, and testing that relate directly to IC design. Integrated circuits and VLSI are of principal interest; material related to discrete circuit design is seldom published. Experimental verification is strongly encouraged.