400–450 MHz power amplifier with high‐order harmonic suppression for multi‐protocol transceiver. Issue 23 (1st November 2016)

• Record Type: Journal Article
• Authors: Weng, Zhaoyang; Jiang, Hanjun; Dong, Jingjing; Li, Fule; Wang, Zhihua
• Is Part Of: Electronics letters. Volume 52:Issue 23(2016)
• Page Start: 1927
• Page End: 1929
• Publication Date: 2016-11-01
• Subjects: UHF power amplifiers -- UHF integrated circuits -- CMOS analogue integrated circuits -- radio transceivers -- harmonics suppression; power amplifier -- high‐order harmonic suppression -- multiprotocol transceiver -- combinational biasing technique -- class AB amplifiers -- conduction angles -- design parameters -- CMOS technology -- harmonic suppressions -- PA technique -- frequency 400 MHz to 450 MHz -- size 65 nm; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.2686
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A combinational biasing technique is presented for a 400–450 MHz power amplifier (PA). By combining two class AB amplifiers with different conduction angles and optimising the design parameters as well, the 5th and 6th harmonics are greatly suppressed in the PA's output. The designed PA is fabricated in 65 nm CMOS technology. Measurement results show that with the presented technique the 5th and 6th harmonic suppressions can be improved by 13 and 17 dB, respectively, compared with a PA with a fixed conduction angle. The presented PA technique can find its important use in multi‐protocol transceivers.