Compact Printed Dual-Polarized Cross-Mesh Antenna for Point-to-Point Communication

This letter presents a compact dual linearly polarized cross-mesh antenna with enhanced bandwidth at K band. The design is implemented as a thin, compact structure on a printed circuit board with the thickness 0.085λ₀, ensuring cost efficiency and ease of fabrication. By incorporating additional radiating patches, the antenna achieves dual resonances, effectively broadening the operational bandwidth to cover from 22 GHz to 23.6 GHz. For each polarization, the simple differential ports are fed through a power divider with a phase difference of 0^∘ and 180^∘, which is valuable for high cross-polarization discrimination. Experimental results demonstrate a measured realized gain of 14.5 dBi and the half-power beamwidth of 20^∘ to 26^∘, making the proposed antenna a promising solution for high-frequency, point-to-point communication applications.