S波段宽边耦合线耦合器的设计
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摘要
提出了一种基于LTCC技术的S波段宽边耦合线耦合器的实现方法。该耦合器由带状线平行放置而成,从而实现更强的耦合度,并实现了耦合器的小型化。通过ADS电路仿真以及HFSS软件三维建模设计,耦合器的加工测试结果与电磁仿真结果相匹配,耦合器的中心频率为3.1GHz,带宽为900 MHz,直通端与耦合端插入损耗均优于3.25dB,隔离端衰减优于26dB,直通端与耦合端的相位差为±90°,尺寸仅为5.4mm×4mm×2.2mm。
The implementation of the S-band wide-brimmed coupling line coupler was presented.The coupler based on LTCC technology was composed of the strip line horizontally,so as to realize stronger coupling.Strip line distributed structure was adopted in this design to realize the miniaturization of the coupler.By ADS circuit simulation and the HFSS software to optimize the3 D modeling,the measurement results of coupler matched the electromagnetic simulation results.The center frequency of coupler is 3.1GHz,the bandwidth is 900 MHz,insertion loss of straight side and coupling side are both superior to 3.25 dB,isolation attenuation is superior to 26 dB,the phase difference between straight side and coupling side is±90°,and the size is only 5.4mm ×4mm × 2.2mm.
The implementation of the S-band wide-brimmed coupling line coupler was presented.The coupler based on LTCC technology was composed of the strip line horizontally,so as to realize stronger coupling.Strip line distributed structure was adopted in this design to realize the miniaturization of the coupler.By ADS circuit simulation and the HFSS software to optimize the3 D modeling,the measurement results of coupler matched the electromagnetic simulation results.The center frequency of coupler is 3.1GHz,the bandwidth is 900 MHz,insertion loss of straight side and coupling side are both superior to 3.25 dB,isolation attenuation is superior to 26 dB,the phase difference between straight side and coupling side is±90°,and the size is only 5.4mm ×4mm × 2.2mm.
引文
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[6]胡助明.宽带带状线定向耦合器的设计[D].电子科技大学,2008:17-19.
[2]师鹏燕,王敏锡,赵明洪.平行耦合线定向耦合器的设计[J].信息技术,2009,06(6):107-109.
[3]韩磊,黄庆安,廖小平.X波段微带线定向耦合器的设计与模拟[J].电子器件,2006,29(2):398-399.
[4]符光强.宽频带LTCC微波3dB定向耦合器的研究与设计[D].南京理工大学,2010:20-25.
[5]凌天庆,张德斌.一种高定向性宽频带微带定向耦合器的研究[J].微波学报,2001,17(4):86-88.
[6]胡助明.宽带带状线定向耦合器的设计[D].电子科技大学,2008:17-19.