CAJ | 학술논문

文章基于高电子迁移率晶体管，采用全微带匹配技术，设计并制作了一种用于某预警雷达接收前端的小型化超低噪声波导低噪声放大器。使用Ansoft公司的Serenader8.7软件对低噪声放大器进行理论仿真设计，并采用随机和梯度优化相结合的方法进行优化。实物的实测数据满足预期指标的要求，具有可行性和实用性。
문장기우고전자천이솔정체관，채용전미대필배기술，설계병제작료일충용우모예경뢰체접수전단적소형화초저조성파도저조성방대기。사용Ansoft공사적Serenader8.7연건대저조성방대기진행이론방진설계，병채용수궤화제도우화상결합적방법진행우화。실물적실측수거만족예기지표적요구，구유가행성화실용성。
Based on HEMT and microtrip impedance matching technique, a miniaturized waveguide low noise amplifier (LNA) used in front-ends of early warning radar is designed. The design simulation process is conducted by Serenader8.7 software from Ansoft and optimized by the combination method of random and gradient optimization. The practical test on the product has been done finally. The results show that this design can meet the performance requirement of the LNA, and is feasible and practical.