Harmonic cancellation of parallel-coupled bandpass filter with transmission zero realign method

被引：0
|
作者：
Marimuthu, Jayaseelan [1 ]
Esa, Mazlina [1 ]
机构：
[1] Multimedia Univ, Fac Engn, Cyberjaya, Selangor Darul, Malaysia
来源：
APACE: 2005 ASIA-PACIFIC CONFERENCE ON APPLIED ELECTROMAGNETICS, PROCEEDINGS | 2005年
关键词：
D O I：
暂无
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 paper presents the harmonic cancellation of a 3(rd) order Butterworth response parallel-coupled bandpass filter by introducing periodical grooves. ne cancellation was obtained by aligning the transmission zero of the Tight Coupling (TCg) coupler with the harmonic of the Weak Coupling (WCg) coupler. The alignment of transmission zero and harmonic was carried out by introducing square grooves periodically at the TCg and WGc couplers. Various numbers of grooves were introduced at the TCg and WCg couplers. By varying the number of grooves at the TCg coupler, the first transmission zero was obtained. Then similar method was used to align the harmonics of the WCg coupler with transmission zero of the TCg coupler. When three stage bandpass filter design with transmission zero of the TCg coupler is aligned with the harmonic of the WCg coupler, the overall the performance of filter improved in terms of suppression of the harmonics and cutoff frequencies.
引用
收藏
页码：264 / 268
页数：5
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