Compact, Broadband, and Omnidirectional Antenna Array for Millimeter-Wave Communication Systems

Abstract

In this paper, a millimeter-wave printed quadrupole antenna is proposed. It consists of two symmetric printed dipoles that make the quadrupole radiating power omnidirectionally. Such an arrangement eliminates the influence of the ground as reflector. Simulation results show that the quadrupole antenna exhibits a broad impedance bandwidth and an enhanced gain compared to conventional dipoles. More interestingly, the configuration of the quadrupole includes an integrated feed network, making the design compact. Next, a novel omnidirectional array was designed, simulated, fabricated, and measured, exhibiting enhanced features like compactness, broad bandwidth, high gain, high efficiency, low cross-polarization, low cross-polarization level, low cost, and low profile.

Design and simulation of a novel miniaturized printed antenna with ultra-wideband and high gain for millimeter-wave wireless applications

“…Many researchers worldwide have launched a series of studies about mm-wave micro-strip antennas [8,9], but the disadvantages of weak gain and efficiency remain constraints. Therefore, there's a requirement for designing array antennas [10][11][12][13][14][15] as one of the solutions to accomplish higher values of efficiency and gain to overcome the path loss resulting from atmospheric conditions. The use of array antennas aims to increase the directivity [16], the gain [17][18][19], and enhance other characteristics that would be difficult with simple antennas.…”

A Multiband Millimeter-Wave Rectangular Dielectric Resonator Antenna with Omnidirectional Radiation Using a Planar Feed

“…On the other hand, omnidirectional radiation is desired for 5G and Beyond 5G (B5G) communication systems to increase the coverage area in various applications such as on-body communications as well as device-to-device short-distance communications [ 5 ]. Therefore, several studies have been reported on the design of mmWave omnidirectional antennas [ 6 , 7 ]. However, an omnidirectional mmWave DRA has not been reported previously, which is in sharp contrast with the numerous published studies on the design of omnidirectional DRAs at lower frequencies with a focus on exciting specific transverse magnetic (TM) and transverse electric (TE) modes to achieve the required pattern.…”