논문 해외 국제전문학술지(SCI급) Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch Filter
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2020-04
- 저자명 이동호,김주성,GYAANG RAYMOND
- 학술지명 ELECTRONICS
- 발행처명 MDPI
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
홈페이지논문 초록 (Abstract)
This paper presents the analysis and design of the harmonic rejection (HR) low-noise amplifier (LNA) with the fully passive source degeneration notch filter. The proposed HR LNA provides the rejection for the strong harmonics (3(rd)) of the local oscillator (LO) frequencies, where the HR mixer does not provide sufficient HR performance. The proposed 3(rd) harmonic notch filter modulates the source degeneration factor and the impedance matching performance thereafter. This effect further helps the blocking of the harmonic signal. The proposed LNA provides 11 dB gain at the fundamental frequency (2.1 GHz) while rejecting the 3rd harmonic component by 37 dBc. Compared to the conventional LNA, the 3rd harmonic notch performance is improved by 23 dB. Additionally, the LNA achieves a minimum noise figure of 3.1 dB, third order input intercept point (IIP3) of 0.5 dBm, input reflection (S-11) below -10 dB from 1.8 GHz-2.3 GHz operational frequency range, and consumed 19 mW of power from a 1.2 V supply.