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A novel SIW based dual‐band power divider using double‐circular complementary split ring resonators
Author(s) -
Duraisamy Tharani,
Barik Rusan Kumar,
Sholampettai Subramanian Karthikeyan,
Kamatchi Selvajyothi
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31772
Subject(s) - passband , power dividers and directional couplers , microstrip , multi band device , split ring resonator , resonator , wilkinson power divider , engineering , optoelectronics , electrical engineering , materials science , electronic engineering , frequency divider , optics , physics , band pass filter , antenna (radio)
Abstract This article presents a novel design of substrate integrated waveguide (SIW) dual‐band power divider loaded with double‐circular complementary split‐ring resonators (CSRRs). The double‐circular CSRRs are etched on the top layer of the proposed structure to obtain the dual‐band characteristic. The proposed geometry provides a passband frequency below the cut‐off frequency of the SIW due to the electric dipole nature of the CSRRs. By changing the dimensions of the CSRRs, various passband characteristics are studied. To validate the design idea, a compact dual band power divider with equal power division operating at 8.4 and 11.7 GHz is designed, fabricated, and tested. A good steadiness is found between simulated and tested results. The proposed idea provides features of compact size, dual‐band operation, and good isolation. The size of the fabricated prototype excluding microstrip transition is 0. 473λ g × 0.284 λ g , where λ g is the guided wave length at the center frequency of first band.