A low Profile Multiband Microstrip Patch Antenna For 5G Mm-Wave Wireless Applications

This paper addresses a low profile multiband microstrip patch antenna design for 5G mm-Wave wireless networks, applications and devices. The proposed patch antenna has a compact rectangular-Shaped structure of $8.6 \times 9.2 \times 0.6$ mm3 including the ground plane and the slotted inset feed line, that is suitable to be used in smart handheld devices. The antenna operating at 23.8 GHz, 39.4 GHz, 66.2 GHz, 81.9 GHz and 93.9 GHz mm-Wave bands with a maximum bandwidth of 1.4663 GHz, 2.5634 GHz, 5.6609 GHz, 7.9341 GHz and 11.3 GHz respectively. At the resonant frequencies, the proposed design provides a gain of 6.1805 dBi, 6.525 dBi, 7.3768 dBi, 7.4845 dBi and 7.7006 dBi respectively. The 5G multiband antenna has been designed with advantages of light weight, low cost, low profile, high gain and efficiency using microstrip feeding technology. The geometry of the proposed antenna and various parameters such as return loss, voltage standing wave ratio (VSWR), gain and impedance bandwidth are evaluated, presented and discussed. The designed multiband antenna provides a sufficient averaged gain of 6.91456 dBi and a total bandwidth of 28.9247 GHz. The compact and flexible structure of the proposed multiband antenna along with excellent matching, large impedance bandwidth, high gain and good efficiency enables it to be a strong candidate for various 5G mmWave applications, services and devices.