通信技术
通信技術
통신기술
COMMUNICATIONS TECHNOLOGY
2013年
11期
115-119
,共5页
双频功率放大器%复合左右手传输线%功率附加效率
雙頻功率放大器%複閤左右手傳輸線%功率附加效率
쌍빈공솔방대기%복합좌우수전수선%공솔부가효솔
dual band of RF power amplifier%composite right/left-handed transmission line%power added efficiency
为了提高多模通信系统前端放大器的利用率问题,基于复合左右手传输线的理论,提出了一种双频高效功率放大器的设计方法。采用负载牵引和源牵引法确定放大器高效工作状态的最佳负载阻抗和最佳源阻抗,利用复合左右手传输线的频率偏移和非线性相位来设计放大器匹配网络。通过ADS软件仿真,放大器同时工作在0.5 GHz和1.2 GHz的频率点时,输出功率分别为39.9 dBm和37.9 dBm,工作效率分别为55.7%和51.3%。
為瞭提高多模通信繫統前耑放大器的利用率問題,基于複閤左右手傳輸線的理論,提齣瞭一種雙頻高效功率放大器的設計方法。採用負載牽引和源牽引法確定放大器高效工作狀態的最佳負載阻抗和最佳源阻抗,利用複閤左右手傳輸線的頻率偏移和非線性相位來設計放大器匹配網絡。通過ADS軟件倣真,放大器同時工作在0.5 GHz和1.2 GHz的頻率點時,輸齣功率分彆為39.9 dBm和37.9 dBm,工作效率分彆為55.7%和51.3%。
위료제고다모통신계통전단방대기적이용솔문제,기우복합좌우수전수선적이론,제출료일충쌍빈고효공솔방대기적설계방법。채용부재견인화원견인법학정방대기고효공작상태적최가부재조항화최가원조항,이용복합좌우수전수선적빈솔편이화비선성상위래설계방대기필배망락。통과ADS연건방진,방대기동시공작재0.5 GHz화1.2 GHz적빈솔점시,수출공솔분별위39.9 dBm화37.9 dBm,공작효솔분별위55.7%화51.3%。
In order to improve the utilization of front-end amplifier for multimode communication system, a dual-band high power amplifier design based on the theory of Composite Right/Left Handed Transmission-Line is proosed. With load pull and source pull to determine optimum plate impedance and optimum source impedance under amplifier's efficient working state, and by using frequency offset and nonlinear phase of composite right/left handed transmission line, the amplifier matching network is designed. The simulation with ADS software indicates that the amplifier's output powers are 39. 9 dBm and 37. 9 dBm, working efficiencies 55. 7% and 51. 3% respectively, while amplifier works at 0. 5 GHz and 1. 2 GHz fre-quency points.
