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A comparative study on substrate integrated waveguide periodic leaky wave antennas with differently shaped periodic slots
R. Shaw, , D. Samantaray, M.K. Mandal
Published in Institute of Electrical and Electronics Engineers Inc.
In this paper, effects of different shapes of periodic slots etched on the broad wall of a via-less substrate integrated waveguide leaky wave antennas are presented. Different shapes of the slots namely circular, elliptical, rectangular and triangular are considered. A comparative performance study based on gain, radiation efficiency and scan range of the antenna for the different shapes is studied over X-band frequency range. Several structures are fabricated. 50 ω microstrip lines are used to excite the antennas. It is observed that the rectangular shaped slot is the best choice if higher gain, radiation efficiency and wide scan range including the stopband is considered. Measured results match well with simulated results. © 2015 IEEE.
About the journal
JournalData powered by Typeset2015 IEEE Applied Electromagnetics Conference, AEMC 2015
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.