An Integrated Broadband MMW Antenna Using Multilayer PCB

In this paper, a novel integrated broadband millimeter wave (MMW) antenna is presented by using multilayer PCB with buried multimode resonator. A stepped back cavity is introduced under the slotted microstrip patch to improve the radiation and impedance matching bandwidth. This scheme is used to design a MMW antenna to cover the 5G communication frequency band from 24.5 GHz to 29.5 GHz. The integrated antenna is designed and fabricated using six layers of printed circuit board. Maximum gain of 8 dB is achieved.