Circularly polarized compact LTSA array in SIW technology

Lei Wang, Xiaoxing Yin, Marc Esquius-Morote, Hongxin Zhao, Juan R. Mosig

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


Typical linearly tapered slot antenna (LTSA) usually features a wideband and a high gain. However, its geometry size is large, especially very long in the tapering direction, which limits its application in compact antenna and array systems. This communication has minimized the tapered length to less than 0.19λ 0 when the aperture width is less than 0.35λ 0 both for horizontally and vertically polarized LTSA arrays. Moreover, the typical polarization of the LTSA is linear, which is perpendicular to the slot. In this communication, an X-band circularly polarized 1×8 LTSA array, made of cross-LTSAs, is proposed with the feeding of a substrate integrated waveguide horn. All the three different polarized LTSA arrays are designed and investigated both in simulation and experiment, and the simulation results agree well with the measured results.
Original languageEnglish
Pages (from-to)3247-3252
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Issue number6
Early online date24 Apr 2017
Publication statusPublished - Jun 2017


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