Open AccessHalf‐mode substrate integrated waveguide bandpass filter loaded with horizontal–asymmetrical stepped‐impedance complementary split‐ring resonators
Author(s) -
Huang Yong Mao,
Shao Zhenhai,
Jiang Wei,
Huang Tao,
Wang Guoan
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.0372
Subject(s) - band pass filter , resonator , split ring resonator , materials science , electrical impedance , microwave , capacitance , waveguide filter , filter (signal processing) , equivalent circuit , waveguide , acoustics , optoelectronics , optics , electronic engineering , low pass filter , prototype filter , physics , electrical engineering , engineering , telecommunications , voltage , electrode , quantum mechanics
A half‐mode substrate integrated waveguide (HMSIW) bandpass filter loaded with modified complementary split‐ring resonators (CSRRs) is presented. The modified CSRR, realised by utilising horizontal–asymmetrical stepped‐impedance (SI) structure in the conventional CSRR, can enhance the equivalent capacitance and inductance of the CSRR and consequently shift the resonant frequency downwards. Therefore, for the same operation frequency, the SICSRR can occupy smaller size than the conventional CSRR, which provides a promising method to achieve size‐reduction in microwave circuits. To verify the effectiveness of miniaturisation introduced from the proposed HMSIW‐SICSRR resonator, a two‐pole bandpass filter is implemented. Moreover, the measured results are in good agreement with the simulated ones.