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Effect of i Shaped Periodic Structures over Collinear Arms of 150 Degree Bend Substrate Integrated Waveguide
S. Moitra, K. Hajra, V.K. Singh, U. Mukherjee, S. Banerjee,
Published in Institute of Electrical and Electronics Engineers Inc.
2019
Abstract
A Substrate integrated waveguide (SIW) wideband band pass filter with 150 degree bend is presented in this paper. Attenuation of higher transmission frequencies are achieved by using array of I-shaped periodic band gap structures at the collinear arms. Six I-shaped slots (three in each arm) are etched over the top conducting layer to achieve the purpose. Several major parameters of these I-shaped structures are studied and presented with detailed outcome. Insertion loss < 0.9dB over the entire pass band has been achieved by this technique. Moreover significant attenuation at the stop band frequencies ( 4GHz) is observed. The filter finds application in microwave X-band and Ku-band radar and satellite systems. © 2019 IEEE.