Dual-band filter design of combined half and quarter wavelength SIRs for WLAN applications

被引：3
|
作者：
Chen, Pow-Wen [2 ]
Ho, Hao-Hung [1 ]
Ho, Min-Hua [1 ,2 ]
Lee, Ching-Her [1 ,2 ]
机构：
[1] Natl Changhua Univ Educ, Dept Elect Engn, Changhua 50007, Taiwan
[2] Natl Changhua Univ Educ, Grad Inst Commun Engn, Changhua 50007, Taiwan
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2008年 / 50卷 / 01期
关键词：
dual-band; WLAN; SIR; doubly parallel-coupling; cross coupling;
D O I：
10.1002/mop.22979
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This article presents a dual-band bandpass filter composed of lambda/2 and lambda/4 stepped impedance resonators for the wireless local area network applications. The filter covers both the operating frequencies of 2.45 GHz and 5.2-5.8 GHz. The doubly parallel-coupling mechanism is used in the filter design to reduce the insertion losses and to gain a wider bandwidth. The cross coupling configuration and the tapped-line I/O feed are adopted in this filter design to provide the attenuation poles for improving the signal selectivity and stopband rejection levels. Experiments were conducted to verify the circuit performance. (C) 2007 Wiley Periodicals, Inc.
引用
收藏
页码：13 / 15
页数：3
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