A band notch UWB bandpass filter using dual-stub-loaded multimode resonator with embedded spiral resonator

被引：4
|
作者：
Sarkar, Pankaj [1 ]
Rakshit, Ishita [2 ]
Adhikari, Sharmili [2 ]
Pal, Manimala [3 ]
Ghatak, Rowdra [2 ]
机构：
[1] NE Hill Univ, ECE Dept, Sch Technol, Shillong 793014, Meghalaya, India
[2] Natl Inst Technol Durgapur, Dept ECE, Microwave & Antenna Res Lab, Durgapur, W Bengal, India
[3] Dept ECE, Kharagpur, W Bengal, India
来源：
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES | 2014年 / 6卷 / 02期
关键词：
UWB bandpass filter (BPF); T-shaped resonator; Spiral resonator; Asymmetric stepped impedance resonator; Notch band;
D O I：
10.1017/S1759078713000998
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 a band-notched ultra-wideband bandpass filter by loading a short stub and an asymmetric step impedance stub in a uniform impedance resonator. The passband extends from 3.04 to 10.8GHz frequency. The multimode resonator provides a sharp band edge with measured transmission zeros at 2.59 and 13GHz. The later one is due to source load coupling. The passband insertion loss is within 1.5dB. The embedded spiral resonator introduces a notch at 5.25GHz with attenuation of 15dB. The filter exhibits a wide stop band till 15GHz. The in band and out of band performance obtained from full-wave electromagnetic simulation and measurement are in close agreement.
引用
收藏
页码：161 / 166
页数：6
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