Title :
Compact Dual-Mode Wideband Filter Based on Complementary Split-Ring Resonator
Author :
Ebrahimi, Amir ; Withayachumnankul, Withawat ; Al-Sarawi, Said F. ; Abbott, Derek
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA, Australia
Abstract :
This letter proposes a microstrip filter based on a dual-mode complementary split-ring resonator (DMCSRR). For the input/output coupling, a dual C-shaped feed structure is implemented together with the DMCSRR to acheive a wideband response. The resonator offers a wide fractional bandwidth of 62% at the central frequency of 2.23 GHz and a very compact structure with a footprint of 0.0625λg×0.18λg, where λg is the guided wavelength at the midband frequency. A comprehensive lumped element circuit analysis accompanies the simulation and measurement results.
Keywords :
UHF filters; UHF resonators; microstrip filters; resonator filters; DMCSRR; compact dual-mode wideband filter; comprehensive lumped element circuit analysis; dual C-shaped feed structure; dual-mode complementary split-ring resonator; frequency 2.23 GHz; guided wavelength; input-output coupling; microstrip filter; midband frequency; wideband response; Couplings; Equivalent circuits; Integrated circuit modeling; Microstrip; Wideband; Wireless communication; Compact filter; complementary split-ring resonator (CSRR); dual-mode filter; wideband filter;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2013.2291869
