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Progress In Electromagnetics Research Letters
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DESIGN OF COMPACT VERTICALLY STACKED SIW END-FIRE FILTERING ANTENNAS WITH TRANSMISSION ZEROS

By C. Hua, X. Jin, and M. Liu

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Abstract:
This paper presents a new type of vertically stacked substrate integrated waveguide (SIW) filtering antenna. It is composed of an SIW bandpass filtering circuit and an antipodal linearly tapered slot antenna (ALTSA). The filtering circuit consists of two vertically stacked SIW cavity resonators which are coupled with each other by etching slot on the common metal layer. By introducing electric and magnetic mixed coupling structures, close-to-passband transmission zeros can be realized and flexibly adjustable. Due to the partially vertically stacked structure, the proposed filtering antenna also shows a compact physical size. For validation, two vertically stacked SIW filtering antennas operating at 30 GHz with transmission zero at the upper or lower side of the passband are designed, fabricated, and measured. Good agreement is observed between the measured and simulated results.

Citation:
C. Hua, X. Jin, and M. Liu, "Design of Compact Vertically Stacked SIW End-Fire Filtering Antennas with Transmission Zeros," Progress In Electromagnetics Research Letters, Vol. 87, 67-73, 2019.
doi:10.2528/PIERL19072205
http://www.jpier.org/pierl/pier.php?paper=19072205

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