A parallel power amplifier with a novel mode switching control
SCIE
SCOPUS
- Title
- A parallel power amplifier with a novel mode switching control
- Authors
- Han, K; Kim, B
- Date Issued
- 2008-03
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGI
- Abstract
- Two parallel operating power amplifiers (PAs) are controlled by a novel mode switch for high efficiencies at both the back-off power region and high power region. The mode switch is realized by the base-collector (BC) junction diode which reuses the dc current of the low power mode amplifier. A 836 MHz CDMA PA has been demonstrated using InGaP/GaAs heterojunction bipolar transistor with fully integrated matching component for small package and low cost. It shows a 13 mA idle current, 15.4% power added efficiency (PAE), -48 dBe ACPR1 at 16 dBm of the low power mode operation and a 40.5% PAE, -46 dBc ACPR1 at 28 dBm of the high power mode operation.
- Keywords
- back-off power operation; mode switching; power amplifier (PA); power-added efficiency (PAE); BIAS CONTROL-CIRCUIT
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/22877
- DOI
- 10.1109/LMWC.2008.916813
- ISSN
- 1531-1309
- Article Type
- Article
- Citation
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, vol. 18, no. 3, page. 200 - 202, 2008-03
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- There are no files associated with this item.
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