A multi-band reconfigurable power amplifier for UMTS handset applications
- Authors
- Kim, Unha; Kim, Kyutae; Kim, Junghyun; Kwon, Youngwoo
- Issue Date
- May-2010
- Publisher
- IEEE
- Keywords
- Band switching; Concurrent; Matching network; Multi-band; Power amplifier; Reconfigurable; UMTS; W-CDMA
- Citation
- Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium, pp.175 - 178
- Indexed
- SCIE
SCOPUS
- Journal Title
- Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
- Start Page
- 175
- End Page
- 178
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/40440
- DOI
- 10.1109/RFIC.2010.5477355
- ISSN
- 1529-2517
- Abstract
- A new practical reconfigurable structure for a multi-band power amplifier (PA) is proposed for UMTS handset applications. The proposed reconfigurable output matching network can reconfigure the output power as well as the frequency. It consists of a path-selection network, a power-reconfigurable network, and a frequency-reconfigurable network. To demonstrate the performance of the proposed structure, a 5 mm × 5 mm prototype reconfigurable PA module is developed for UMTS high-frequency band application. The fabricated PA module can cover any two bands out of three popular high-frequency UMTS bands. The fabricated amplifier module showed adjacent channel leakage ratios (ACLRs) better than -38 dBc up to the rated linear power and power-added efficiencies (PAEs) of higher than 38% at 28 dBm over all high-frequency UMTS bands. Efficiency degradation was limited to 2-3% compared to the single-band PA. Measured RF performance of the reconfigurable PA validates the usefulness of the proposed reconfigurable structure for multi-band UMTS applications. © 2010 IEEE.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > SCHOOL OF ELECTRICAL ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/40440)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.