A dual-band quad-polarized transmitarray (TA) is designed in a common aperture operating at 25.9/39.8 GHz. Using narrow strip patches as cells, the 25.9 GHz cells are arranged in the ±45° direction, ...

In the paper, two dual-model bandpass filters fed by coaxial and integrated substrate gap waveguide (ISGW) individually are proposed for 5G communication system.