PROCEEDINGS OF THE ITE WINTER ANNUAL CONVENTION
Online ISSN : 2424-2306
Print ISSN : 1343-4357
ISSN-L : 1343-4357
2011
Session ID : 4-8
Conference information

4-8 Development of a High-Efficiency UHF Power Amplifier for Digital Television : Broadcasting Transmitters
Kenichi HASUIKETakao KATOHideki OONOHiromu ITAGAKITetsuya MAYAMATakashi YAMAMOTOShunya OTSUKITakaya KITAHARA
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Abstract
A high efficiency power amplifier for digital-television-broadcasting transmitter is in demand. In order to carry out a high efficient power amplifier, the doherty amplifier circuit was used. And a gallium nitride high electric mobility transistor (GaN HEMT) was also used as an amplifier device. In the experimental results, compared to the efficiency of more than 18% of the conventional product, the efficiency was improved to more than 30%.
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© 2011 The Institute of Image Information and Television Engineers
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