A Compact UWB Bandpass Filter With Embedded SIR as Band Notch Structure

被引:74
作者
Ghatak, Rowdra [1 ]
Sarkar, Pankaj [2 ]
Mishra, R. K. [3 ]
Poddar, D. R. [4 ]
机构
[1] Natl Inst Technol Durgapur, Elect & Commun Engn Dept, Durgapur 713209, W Bengal, India
[2] SikshaOAnusandhan Univ, Commun Engn Dept, ITER, Bhubaneswar 751030, Orissa, India
[3] Berhampur Univ, Dept Elect Sci, Berhampur 760007, Orissa, India
[4] Jadavpur Univ, Elect & Telecommun Engn Dept, Kolkata 700032, W Bengal, India
关键词
Notch-band; stepped impedance resonator (SIR); ultrawideband (UWB) bandpass filter; UPPER-STOPBAND PERFORMANCE; MULTIPLE-MODE RESONATOR;
D O I
10.1109/LMWC.2011.2128302
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
In this letter, an ultrawideband (UWB) bandpass filter with a band notch is proposed. The UWB BPF (3.1-10.6 GHz) is realized by cascading a distributed high-pass filter and an elliptic low-pass filter with an embedded stepped impedance resonator (SIR) to achieve a band notch characteristic. The notch band is obtained at 5.22 GHz. It is shown that the notch frequency can be tuned by changing the impedance ratio of the embedded SIR. A fabricated prototype of the proposed UWB bandpass filter is developed. The inband and out-of-band performance obtained by measurement, EM simulation, and that with an equivalent circuit model are in good agreement.
引用
收藏
页码:261 / 263
页数:3
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