대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2000년도 추계종합학술대회 논문집(1)
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- Pages.341-344
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- 2000
전치왜곡 방식이 결합된 FeedForward 방식을 이용한 IMT-2000용 선형 전력 증폭기의 설계 및 제작
Design and Fabrication of Linear Power Amplifier for IMT-2000 Using FeedForward Method Combined Predistortion Method
초록
Advanced FeedForward method use Predistortion method and FeedForward method simultaneously. This method better than original Feedforward method in linearity and supply smaller power to pre-power amplifier than different methods, and then it has higher power efficiency and better linearity than original Feedforward method. A linear power amplifier using Advanced feedforward method is designed and fabricated for IMT-2000 transmission system (2110㎒ -2170M㎓). This amplifier's power gain is about 40㏈ and it's 3-rd IMD(Intermodulation distortion) are smaller than about -55㏈c(@ 10MHz).
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