Dual-band broadband coupler with SIR branches

被引：0
作者：
Chu Q.-X. [1 ]
Yang L. [1 ]
Lin F. [1 ]
机构：
[1] School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, Guangdong
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2010年 / 38卷 / 05期
关键词：
Branch-line coupler; Broadband; Dual band; Stepped impedance resonator;
D O I：
10.3969/j.issn.1000-565X.2010.05.010
中图分类号：
TN81 [馈线设备（传输线和波导）];
学科分类号：
摘要：
As the conventional dual-band coupler is of narrow operation band, this paper presents a novel design method of dual-band broadband branch-line coupler based on stepped impedance resonator(SIR). With this method, both the location of resonate frequencies and the bandwidth of the coupler can be adjusted in the lower and upper frequency bands. A dual-band broadband 3-dB coupler operating at 2.20/5.50GHz is also designed and fabricated, which covers not only the 1.80GHz GSM band and but also the 2.45/5.25/5.80GHz WLAN bands. The measured results accord well with the simulated ones, meaning that the proposed design method is feasible.
引用
收藏
页码：51 / 54+70
相关论文
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