Dual-band feedforward linear power amplifier for digital cellular and IMT-2000 base-station

Choi, Heungjae ORCID: https://orcid.org/0000-0003-1108-293X, Jeong, Yongchae, Kenney, J. S. and Kim, Chul Dong 2009. Dual-band feedforward linear power amplifier for digital cellular and IMT-2000 base-station. Microwave and Optical Technology Letters 51 (4) , pp. 922-926. 10.1002/mop.24198

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Abstract

This article presents the design of a novel dual-band signal cancellation circuit and its application to feedforward linear power amplifier. Intermodulation distortion cancellation loop shows 20.45 dB and 25.04 dB suppression for digital cellular band and IMT-2000 band, respectively, over a correction bandwidth of 100 MHz. From the adjacent channel leakage ratio measurement, 16.5 dB and 18.6 dB improvements are achieved for each band under simultaneous operation.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Uncontrolled Keywords:	dual-band; feedforward; power amplifier
Publisher:	John Wiley & Sons
ISSN:	0895-2477
Last Modified:	09 May 2023 12:03
URI:	https://orca.cardiff.ac.uk/id/eprint/18874

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