Title :
Design of UWB bandpass filter with dual notched bands based on E-shaped resonator
Author :
Junding Zhao ; Jianpeng Wang ; Jia-Lin Li
Author_Institution :
Ministerial Key Lab. of JGMT, Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
A new microstrip ultra-wideband (UWB) bandpass filter (BPF) with dual sharply rejected notched bands based on E-shaped resonator is proposed in this letter. The basic UWB BPF is designed using interdigital coupled lines and rectangular patch multiple-mode resonator (MMR). Then, the resonance properties of the E-shaped resonator are studied. The analyzed results reveal that the dual-mode resonant property of the E-shaped resonator can be utilized in the UWB BPF design to achieve dual band-notched characteristics. To validate the design theory, a microstrip UWB BPF with two notch-bands centered at the frequencies of 5.8 GHz and 8.0 GHz, respectively, is designed and fabricated. Both simulation and experimental results are provided with good agreement.
Keywords :
band-pass filters; coupled transmission lines; microstrip filters; microstrip lines; microwave filters; notch filters; resonator filters; ultra wideband communication; E-shaped resonator; MMR; UWB bandpass filter; dual band-notched characteristics; dual sharply rejected notched bands; dual-mode resonant property; interdigital coupled lines; microstrip UWB BPF design; microstrip ultrawideband bandpass filter; rectangular patch multiple-mode resonator; Band-pass filters; Equivalent circuits; Microwave filters; Resonant frequency; Resonator filters; Ultra wideband technology; Wireless communication; Bandpass filter (BPF); E-shaped resonator; notched bands; ultra-wideband (UWB);
Conference_Titel :
Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2013 IEEE MTT-S International
Conference_Location :
Singapore
DOI :
10.1109/IMWS-BIO.2013.6756223
