Circular formed dual-band dual-polarized patch antenna and a method for designing compact combined feed networks

A broadband proximity-coupled dual-polarized microstrip antenna with L-shape backed cavity for X-band applications

“…The dual-polarized antennas have received increasing attention since the additional channel with different polarization can be used to provide more information for improving the system performance, such as enhancing transmission quality in the wireless communications [1][2][3], or improving imaging resolution in the synthetic aperture radar systems [4]. In addition, the dual polarization technique can be also used to reduce the required number of antennas, which is significant especially for some applications where the weight and space are limited.…”

“…In particular, since the microstrip antenna has attractive features, such as low profile, light weight and easy fabrication, it becomes one of the primary choices for implementing the dual-polarized radiation [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. However, the disadvantage of conventional microstrip antennas is the limited frequency bandwidth.…”