Compact UWB bandpass filter with dual notched bands using cascaded shorted-stub loaded SIRS

Author

Liang Chen ; Xiaoyan Zhang ; Wu, Bin

Author_Institution

Sci. & Technol. on Electromagn. Compatibility Lab., China Ship Dev. & Design Centre, Wuhan, China

fYear

2013

fDate

29-31 Oct. 2013

Firstpage

198

Lastpage

201

Abstract

A compact ultra-wideband (UWB) filter with dual notched bands is presented using cascaded shorted-stub loaded stepped impedance resonators (SIRs). The basic UWB filter consists of multi-mode resonator (MMR) loaded with T-shaped stub and interdigital feed lines, having flat ultra-wideband response and sharp rejection skirt. Two cascaded shorted-stub loaded SIRs are symmetrically coupled to MMR, introducing dual notched bands with deep and sharp shirt and providing freedom to adjust the notch frequency. A UWB filter with 5.8G/8.0G notched bands is designed and fabricated.

Keywords

antenna feeds; band-pass filters; microwave filters; microwave resonators; notch filters; telecommunication transmission lines; ultra wideband antennas; ultra wideband communication; MMR; T-shaped stub; cascaded shorted-stub loaded SIRS; cascaded shorted-stub loaded stepped impedance resonators; compact UWB bandpass filter; dual notched bands; flat ultra-wideband response; interdigital feed lines; multimode resonator; notch frequency adjustment; sharp rejection skirt; Band-pass filters; Filtering theory; Impedance; Resonant frequency; Resonator filters; Ultra wideband technology; Wireless communication; Ultra-wideband (UWB); dual notched bands; multi-mode resonator (MMR); shorted-stub; stepped impedance resonator (SIR);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE), 2013 IEEE 5th International Symposium on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-6077-7

Type

conf

DOI

10.1109/MAPE.2013.6689865

Filename

6689865