Fig. 5
From: Compact integrated self-multiplexing antenna for sub-6 GHz and millimeter wave 5G frequency spectrum

a Development stages of the EMSIW cavity resonator utilizing hybrid TE750 mode, b Microstrip-fed EMSIW cavity resonator.
From: Compact integrated self-multiplexing antenna for sub-6 GHz and millimeter wave 5G frequency spectrum

a Development stages of the EMSIW cavity resonator utilizing hybrid TE750 mode, b Microstrip-fed EMSIW cavity resonator.