Design of W-Band Low-Noise Amplifier for Radar

Song, JaeHyeok; Choi, Han‐Woong; Lim, Jeong-Taek; Lee, Jae-Eun; Son, Jeong-Taek; Kim, Joon‐Hyung; Baek, Min-Seok; Lee, Eun‐Gyu; Kim, Ki Jin; Kim, Choul‐Young

doi:10.5515/kjkiees.2023.34.1.65

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…그림 1은 레이다 시스템의 IQ 수신단 예시와 설계한 LO 입력단의 블록도이다. IQ 믹서의 구동을 위해 필요한 LO 전력은 약 0 dBm 정도이며 [4], [5] , 수동형 주파수 체배 기의 경우 출력 전력은 0 dBm 이하이다 [6] . 일반적인 RC-PPF는 높은 삽입 손실 때문에, 주파수 체배기와 믹서 사이에 신호 증폭과 PPF의 손실을 보상하기 위한 구동 증폭기가 필요하다.…”

Section: ⅱ Lo 입력단 설계unclassified

Design and Analysis of an LO Chain for an IQ Receiver in a 77~81 GHz Short-Range Radar System

Song,

Lim,

Lee

et al. 2023

J. Korean Inst. Electromagn. Eng. Sci.

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This paper presents the design and analysis of an LO chain implemented using the CMOS 65 nm bulk process. The LO chain was fabricated for driving the short-range radar IQ mixer in the 77∼81 GHz band. The LO chain comprised a poly phase filter (PPF), driver amplifiers to compensate for PPF losses, and a 3-bit 7-dB attenuator to ensure the appropriate power conditions. Measurement results indicated that the maximum gain within the target band was 8 dB, and the gain and phase difference between the IQ outputs were 0.5 dB and 74°, respectively. The LO chain consumed 74 mW of power at 1 V, and the size of the fabricated chip was 1.027×0.45 mm 2 , including RF and DC pads.

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Section: ⅱ Lo 입력단 설계unclassified

Design and Analysis of an LO Chain for an IQ Receiver in a 77~81 GHz Short-Range Radar System

Song,

Lim,

Lee

et al. 2023

J. Korean Inst. Electromagn. Eng. Sci.

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“…W 대역은 자동차 산업에서 FMCW(frequency modulated continuous wave)레이다에 사용된다. W 대역은 저주파 대 역과 비교해 감쇄가 심하고 분진 및 기상 등에 민감하지 만 W 대역의 특유의 작은 파장으로 인한 분해능은 자동 차에서 작은 물체를 식별하여 사고를 예방시키는 데에 이용된다 [1] .…”

Section: ⅰ 서 론unclassified

W-Band CMOS Wilkinson Power Divider

Lee,

Lim,

Lee

et al. 2023

J. Korean Inst. Electromagn. Eng. Sci.

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This paper presents the design of W-band Wilkinson power divider using 65 nm bulk CMOS process. In this design, the quarter-wavelength (λ/4) transmission line was replaced with a lumped element, and a CRC structure was applied to the isolation network circuit. In addition, a metal wall was installed between the two output lines to enhance isolation. This power divider had a maximum insertion loss of 1.93 dB and a minimum isolation of 13.3 dB in the 75∼110 GHz band. The return loss was more than 7.2 dB, and the size of the core was 0.2×0.12 mm².

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Design of W-Band Low-Noise Amplifier for Radar

Cited by 2 publications

References 8 publications

Design and Analysis of an LO Chain for an IQ Receiver in a 77~81 GHz Short-Range Radar System

Design and Analysis of an LO Chain for an IQ Receiver in a 77~81 GHz Short-Range Radar System

W-Band CMOS Wilkinson Power Divider

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