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High Power Amplifier using Radial Power Combiner
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레디알 전력 결합기를 이용한 고출력 증폭기

논문 기본 정보

Type
Academic journal
Author
Choi, Jong-Un (가톨릭관동대학교 전자공학과) Yoon, Young-Chul (가톨릭관동대학교 전자공학과) Kim, Young (금오공과대학교 전자공학부)
Journal
한국항행학회 한국항행학회논문지 한국항행학회논문지 제21권 제6호 KCI Accredited Journals
Published
2017.1
Pages
626 - 632 (7page)

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High Power Amplifier using Radial Power Combiner
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This paper describes a high power amplifier combining eight low power amplifiers using a radial power combiner with low insertion loss. The radial power combiner is a non-resonant type combiner with 8 input ports and is implemented by microstrip transmission line. The combiner characteristics designed at operating frequency of 1.045 GHz have an insertion loss of 0.7 dB and a return loss of more than 12 dB. Also, the low power amplifier used was designed with AFT27S010NT1 transistor and designed to satisfy the same gain, phase and constant output characteristic at operating frequency. The high power amplifier, which combiners the radial power combiner and the drive amplifier of 8 W output by driving low power amplifiers obtained the output characteristic of 33 W at operating frequency of 1.045 GHz. Also, the change of the output characteristic of the amplifier using the radial combiner was graceful degradation when the low power amplifier failed one by one.

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