A multi-band reconfigurable power amplifier for UMTS handset applications
- Title
- A multi-band reconfigurable power amplifier for UMTS handset applications
- Author
- 김정현
- Keywords
- Band switching; Concurrent; Matching network; Multi-band; Power amplifier; Reconfigurable; UMTS; W-CDMA
- Issue Date
- 2010-05
- Publisher
- IEEE
- Citation
- Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium, article no. 5477355, Page. 175-178
- 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.
- URI
- https://ieeexplore.ieee.org/document/5477355https://repository.hanyang.ac.kr/handle/20.500.11754/183797
- ISSN
- 1529-2517;1097-2633
- DOI
- 10.1109/RFIC.2010.5477355
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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