摘要
采用基于接地式开关的单频可重构阻抗变换网络,设计了一款可以工作在三个波段的可重构功率放大器。与其他可重构功率放大器相比,该功放输出匹配电路的设计复杂度相对较低,对各个工作频率的跨度要求很小,同时有效节约了频谱资源。为了验证方案的可行性,采用型号为CGH40010F的GaN晶体管设计了一款工作在1.75 GHz、2.1 GHz和2.6 GHz的可重构功率放大器,制作实物并进行测试。测试结果表明该结构使功放在工作的三个频段上具有良好的输出功率、效率及增益,各个频段之间的切换更加方便。
A single-frequency reconfigurable impedance transform network based on grounded switch is used to design a reconfigurable power amplifier that can operate in three bands.Compared with other reconfigurable power amplifiers,the power amplifier output matching circuit has a relatively low design complexity,requires a small span for each operating frequency,and effectively saves spectrum resources.In order to verify the feasibility of the above scheme,a reconfigurable power amplifier operating at 1.75 GHz,2.1 GHz and 2.6 GHz was designed using a GaN transistor of the type CGH40010 F,and the physical object was fabricated and tested.The test results show that the structure makes the power amplifier have good output power,efficiency and gain in the three frequency bands,and the switching between the various frequency bands is more convenient.
作者
李国金
石苑辰
南敬昌
LI Guo-jin;SHI Yuan-chen;NAN Jing-chang(School of Electronics and Information Engineering,Liaoning Technical University,Huludao 125105,China)
出处
《微波学报》
CSCD
北大核心
2020年第5期83-88,共6页
Journal of Microwaves
基金
国家自然科学基金(61971210)
国家自然科学基金青年基金(61701211)
辽宁省特聘教授项目(551710007004)。
