IIEEE Antennas and Wireless Propagation Letters1/21/2026Circularly Polarized Ridge Gap Waveguide Antenna Using Composite Transverse-Longitudinal Slots for SatCom SystemsLu Cong·Wenquan Che·Songlin Yan·Jia WeiRead at IEEE Antennas and Wireless Propagation LettersTagsAntenna Design and AnalysisAerospace Engineering