A Low Profile Planar Dual-Polarized Tightly Coupled Dipole Transmitarray With 5:1 Bandwidth
Conference
Elaouinate, M, Koutinos, AG, Zekios, CL et al. (2026). A Low Profile Planar Dual-Polarized Tightly Coupled Dipole Transmitarray With 5:1 Bandwidth
. 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, 1943-1945. 10.1109/AP-S/USNC-URSI60190.2026.11674849
Elaouinate, M, Koutinos, AG, Zekios, CL et al. (2026). A Low Profile Planar Dual-Polarized Tightly Coupled Dipole Transmitarray With 5:1 Bandwidth
. 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, 1943-1945. 10.1109/AP-S/USNC-URSI60190.2026.11674849
A low-profile planar ultra-wideband dual-polarized transmitarray based on tightly coupled dipole (TCDA) elements is presented. The unit-cell structure adopts a lattice configuration originally proposed for reflectarray applications which is properly modified, in this work, for transmitarray use. The configuration uses orthogonal tightly coupled dipoles connected with true-time-delay (TTD) lines. The TTD lines, placed between conductive planes, are connected through through-hole plated vias, enabling independent phase control for two linear polarizations within a 12-layer planar structure. The proposed TCDA unit cell provides stable transmission magnitude and a continuous 360° transmission phase range over a 5:1 bandwidth (3-15 GHz).
