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구분 출원국
출원년도 ~ 키워드

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등록 신호 증폭 장치 및 방법

신호 증폭 장치 및 방법
이미지 확대
발명자
장승현, 박봉혁, 이성준, 조영균, 이광천, 정재호
출원번호
14150084 (2014.01.08)
공개번호
20150017932 (2015.01.15)
등록번호
9295001 (2016.03.22)
출원국
미국
협약과제
12MI1300, 차세대 이동통신 기지국용 Class-S 전력증폭기 기술 연구, 정재호
초록
A signal amplification apparatus includes a first modulator configured to receive an envelope signal, use a predetermined reference level to separate the received envelope signal into a first period and a second period, digitally modulate a signal of the second period to output the digitally modulated signal to a first output terminal, and output a signal of the first period to a second output terminal. Further, the signal amplification apparatus includes a second modulator configured to mix the digital modulated signal input through the first output terminal with a phase modulated carrier signal; an envelope modulator configured to output the signal of the first period as a power supply signal; and a power amplifier configured to amplify the mixed signal output by the second modulator to output the amplified signal.
KSP 제안 키워드
Carrier signal, Digitally modulated signal, Envelope modulator(EM), Modulated signal, digital modulated signal, envelope signal, mixed signal, power amplifiers(PAs), power supply, reference level, signal amplification