A Highly Efficient GaAs HBT MMIC Balanced Power Amplifier for W-CDMA Handset Applications
- Title
- A Highly Efficient GaAs HBT MMIC Balanced Power Amplifier for W-CDMA Handset Applications
- Author
- 김정현
- Keywords
- Balanced power amplifier; efficiency; MMIC; small form-factor; W-CDMA
- Issue Date
- 2009-10
- Publisher
- 한국전자통신연구원
- Citation
- ETRI JOURNAL, v. 31, NO. 5, Page. 598-600
- Abstract
- A highly efficient and compactly integrated balanced power amplifier (PA) for W-CDMA handset applications is presented To overcome the size limit of a typical balanced PA, a bulky input divider is integrated into a PA MMIC, and a complex output network is replaced with simple lumped-element networks. For efficiency improvement at the low output power level, one of the two amplifiers in parallel is deactivated and the other is partially operated with corresponding load impedance optimization The implemented PA shows excellent average current consumption of 34.5 mA in urban and 56.3 mA in suburban environments, while exhibiting very good load-insensitivity under condition of VSWR=4:1.
- URI
- https://onlinelibrary.wiley.com/doi/abs/10.4218/etrij.09.0209.0213https://repository.hanyang.ac.kr/handle/20.500.11754/183802
- ISSN
- 1225-6463;2233-7326
- DOI
- 10.4218/etrij.09.0209.0213
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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