DESIGN AND ANALYSIS OF RIDGE SUBSTRATE INTEGRATED WAVEGUIDE BANDPASS FILTER WITH OCTAGONAL COMPLEMENTARY SPLIT RING RESONATOR FOR SUPPRESSION OF HIGHER ORDER HARMONICS | Zendy

R. Aneesh Kumar | Zendy; Shiva Nand Singh | Zendy

Open Access

DESIGN AND ANALYSIS OF RIDGE SUBSTRATE INTEGRATED WAVEGUIDE BANDPASS FILTER WITH OCTAGONAL COMPLEMENTARY SPLIT RING RESONATOR FOR SUPPRESSION OF HIGHER ORDER HARMONICS

Author(s) -

R. Aneesh Kumar,

Shiva Nand Singh

Publication year - 2019

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc18080404

Subject(s) - harmonics , band pass filter , resonator , ridge , substrate (aquarium) , filter (signal processing) , waveguide , waveguide filter , ring (chemistry) , split ring resonator , electronic engineering , acoustics , materials science , optics , engineering , physics , optoelectronics , prototype filter , electrical engineering , filter design , geology , chemistry , paleontology , oceanography , organic chemistry , voltage

In this research paper, a Ridge Substrate Integrated Waveguide (RSIW) multiple band bandpass filter embedded with an octagonal shape Complementary Split Ring Resonator (CSRRs) is proposed. The electrically coupled octagonal shape CSRR is placed interdigitally in RSIW using transverse coupling technique to improve multiple passband bandwidths. The filter exhibits a highly selective multiple electric or magnetic or bianisotropic mode for different frequencies. The analysis for spurious band suppression has been done by direct method. The prototype configuration of quarterwavelength octagonal CSRR resonators introduces band suppression at all odd harmonics. The proposed structure of filter with dimension 1.36λg × 0.52λg excluding feed port is fabricated. Full wave structure simulated results are compared with measurement ones. The measured passband frequencies and their calculated respective central frequency (f0), fractional bandwidth (FBW) are in close agreement with the simulated result. The spurious higher order harmonics are observed as suppressed. The filter can be utilized to suppress interference from LAN, WLAN, GSM, WiMAX and variable stopband for ISM interference.

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