电子器件2017，Vol.40Issue(4)：824-828,5.DOI:10.3969/j.issn.1005-9490.2017.04.009
一种双频带低噪声放大器的设计与实现
Design and Realization of a Dual-Band Low Noise Amplifier
摘要
Abstract
A dual-band low noise amplifier(DBLNA),which can operate at 2.4 GHz and 5.8 GHz,is designed and realized.A common-base common-emitter circuit structure is employed as gain stage to achieve wider bandwidth.In order to compensate the loss of transmission line and the PCB process error,a gain enhancement circuit is introduced.Meanwhile,a RC circuit and matching inductor are used to improve the gain at high frequency.A π-type micro-strip line structure is designed to achieve input and output matching.The results show that at the 2.4 GHz and 5.8 GHz,the S21 are 15 dB and 13 dB respectively,noise factor are 3.6 dB and 4.5 dB respectively,both of simulation and test result of S11 and S22 are below-10 dB.关键词
双频带/低噪声放大器/微带线/输入输出匹配Key words
dual-band/low noise amplifier/micro-stripe line/input and output matching分类
信息技术与安全科学引用本文复制引用
张正,刘波宇,张延华..一种双频带低噪声放大器的设计与实现[J].电子器件,2017,40(4):824-828,5.基金项目
国家自然科学基金项目(61571021,61574010) （61571021,61574010）
