Design and Implementation of UWB Bandpass Filter with a Frequency Notch for Choking Back the Interference from Narrow Band Wireless Communication Systems

被引：6

作者：

Qin, Wei ^{[1
]}

Hong, Wei ^{[1
]}

Tang, Hong Jun ^{[1
]}

Wang, Jing ^{[1
]}

机构：

[1] Southeast Univ, Sch Informat Sci & Engn, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China

来源：

2009 IEEE INTERNATIONAL CONFERENCE ON ULTRA-WIDEBAND (ICUWB 2009) | 2009年

关键词：

WAVE-GUIDE; MICROSTRIP;

D O I：

10.1109/ICUWB.2009.5288762

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, an Ultra-Wide Band (UWB) bandpass filter with a frequency notch is designed and implemented. The filter is realized by combining the highpass characteristic of Substrate Integrated Waveguide (SIW) with the lowpass characteristic of a step-impedance filter. Open stubs are embedded in the microstrip-to-SIW transitions to generate the frequency notch. The bandwidth of the UWB bandpass filter is from 3.1 GHz to 10.6 GHz, and the measured insertion loss in the passband is less than 1dB (including the insertion loss of two connectors). A sharp notch at 5.8 GHz is achieved in both simulation and experiment. The tested depth of the frequency notch is about -31 dB. The notch is deep enough to choke back the interference from 5.8GHz narrow band wireless communication systems.

引用

页码：521 / 524

页数：4

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