A linear, low power, 2.5-dB NF LNA for UWB application in a 0.18 μm CMOS. Issue 12 (December 2015)

• Record Type: Journal Article
• Authors: Mohammadi, Ismail; Sahafi, Ali; Sobhi, Jafar; Daei Koozehkanani, Ziaddin
• Is Part Of: Microelectronics journal. Volume 46:Issue 12 Part B (2015)
• Page Start: 1398
• Page End: 1408
• Publication Date: 2015-12
• Subjects: Broadband LNA -- Common Gate (CG) -- Feedback amplifier -- Linearity -- Volterra series; Microelectronics -- Periodicals; Microélectronique -- Périodiques; Microelectronics; Electronic journals; Journals - contents and abstracts; Periodicals; 621.3805
• DOI: 10.1016/j.mejo.2015.09.003
• Languages: English
• ISSNs: 0959-8324

Abstract

Abstract: This paper presents an ultra-wideband common-gate low-noise amplifier (UWB CG-LNA) that employs negative feedback to overcome the trade-off that exists between noise and input impedance matching while preserving linearity, stability, and low power operation. The proposed LNA has been designed and simulated via TSMC 0.18-μm CMOS. UWB LNA operates from 3.1 to 10.1 GHz. Designed LNA consumes 2.3 mA from a 1.8-V supply. Post-layout simulation shows that LNA achieves a maximum voltage gain of 13.7 dB, a minimum noise figure of 2.5 dB, better than − 10 dB S 11 and + 4.5 to + 9.5 dBm IIP3 across the entire bandwidth. The Volterra series has been used to analyze the linearity of circuit.