Ebrahimi, A.Withayachumnankul, W.Al-Sarawi, S.Abbott, D.2014-05-162014-05-162014IEEE Microwave and Wireless Components Letters, 2014; 24(3):152-1541531-13091558-1764http://hdl.handle.net/2440/83011This 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.en© 2013 IEEECompact filtercomplementary split-ring resonator (CSRR)dual-mode filterwideband filter.Journal article002013378010.1109/LMWC.2013.22918690003329529000062-s2.0-8489702026616871Withayachumnankul, W. [0000-0003-1155-567X]Al-Sarawi, S. [0000-0002-3242-8197]Abbott, D. [0000-0002-0945-2674]