Reconfigurable low voltage low power dual-band self-cascode current-reuse quasi-differential LNA for 5G. (October 2019)

• Record Type: Journal Article
• Authors: Hari Kishore, K.; Senthil Rajan, V.; Sanjay, R.; Venkataramani, B.
• Is Part Of: Microelectronics journal. Volume 92(2019)
• Publication Date: 2019-10
• Subjects: Low noise amplifier -- Quasi-differential LNA -- Wideband -- Self-cascode -- Current-reuse -- 5G; Microelectronics -- Periodicals; Microélectronique -- Périodiques; Microelectronics; Electronic journals; Journals - contents and abstracts; Periodicals; 621.3805
• DOI: 10.1016/j.mejo.2019.104602
• Languages: English
• ISSNs: 0959-8324

Abstract

Abstract: This paper proposes a low noise amplifier (LNA) which can be reconfigured to operate in two frequency bands at low power. The LNA employs self-cascode devices in current-reuse configuration to enable lower supply voltage operation without compromising the gain. A quasi-differential structure is used to achieve high linearity and good common-mode rejection. The proposed LNA is designed to operate in (3.1–4.7 GHz: Band1) and (5.0–7.2 GHz: Band2) in the 5G frequency spectrum. It is implemented in 65 nm UMC-LL CMOS process technology using 0.6V, and its performance is evaluated using post layout, PVT and Monte Carlo simulations. The proposed LNA requires an area of 0.03276 mm 2 . The power dissipation, maximum gain, minimum noise figure, average IIP3, IIP2 of the LNA operating in Band1 and Band2 are found to be (0.97 ​mW, 17.6 ​dB, 2.20 ​dB, +0.72dBm, +46.49dBm) and (0.485 ​mW, 12.1 ​dB, 3.31 ​dB, +0.12dBm, +42.60dBm) respectively.