Modified CSRRs in SIW technology for passband improvement
Javier Martínez, A. Coves, A.A. San Blas, E. Bronchalo, Maurizio Bozzi
16TH European conference on antennas and propagation (EUCAP 2022)  (Madrid, 27 de marzo al 1 de abril de 2022)
Ed. IEEE  ISBN:978-88-31299-04-6  - pp. 32-35


In this paper, a substrate integrated waveguide (SIW) loaded with three pairs of modified complementary

split-ring resonators (CSRRs) is presented, in which the subwavelength waveguide passband can be significantly

increased due to the appearance of new electromagnetic couplings between the different resonators. The obtained

results are compared to those provided by a more classical topology based on CSRRs periodically etched along the

waveguide wall, showing a significant bandwidthimprovement, while maintaining a good matching level.