摘要
在介电常数为2.20±0.02,厚度为254μm的Rogers5880衬底上用混合集成技术制作了9.5～10.5GHz平衡I-Q矢量调制器。测试结果表明:各状态插入损耗为(7.5±1)dB,回波损耗大于16dB,均方根(RMS)相位误差小于5°,各状态之间的幅度不平衡小于0.5dB,可实现对9.5～10.5GHz载波信号的直接QPSK调制。文中还提出电路性能优化的一些方法。
A 9.5 - 10.5 GHz balanced I - Q vector modulator was designed and fabricated on Rogers5880 with a dielectric constant of 2.20 ± 0.02 and thickness of 254μm. Measured results are ： the insertion loss of balanced I - Q vector modulator is （7.5 ± 1 ） dB, the return loss of the circuit is above 16dB, and RMS phase error is less than 5°, the maximum amplitude unbalance is 0.5dB. Some measures to optimize circuit performance were proposed at the end.
出处
《功能材料与器件学报》
EI
CAS
CSCD
北大核心
2007年第6期615-618,共4页
Journal of Functional Materials and Devices
基金
上海市应用材料研究与发展基金(No.0503)
