A wideband dual‐polarized magneto‐electric dipole antenna for millimeter wave applications

Abstract

In this paper, a wideband dual-polarized magneto-electric (ME) dipole antenna with modified electric-dipole structure is proposed based on the cost-effective printed circuit board (PCB) technology for millimeter-wave (mmW) applications. A 3D-meandered electric-dipole design is adopted to enlarge the operating bandwidth without increasing the physical volume and footprint of the antenna structure. The developed dual-polarized antenna element demonstrates a wide overlapped impedance bandwidth of 54.5%, a decent isolation no less than 22 dB as well as stable radiation characteristics over the frequency band of interest. For proof-of-concept demonstration, a 2 × 2 dual-polarized ME-dipole array is designed, implemented, and measured. An overlapped impedance bandwidth of 46.3% (24.1-38.6 GHz), a gain up to 13 dBi, and nearly symmetric radiation patterns in the two main planes are experimentally obtained. The proposed dual-polarized antenna array possesses the advantages of wide operational band, low cost, ease of integration, and stable radiation characteristics that would be of interest for mmW applications.

A Low-Profile Quasi-Loop Magneto-Electric Dipole Antenna Featuring a Wide Bandwidth and Circular Polarization for 5G mmWave Device-to-Device Communication

“…However, the relatively smaller bandwidth-i.e., ≲3 GHz-was achieved by all these arrangements. The ME dipole described in [19] accomplished a bandwidth >14 GHz, but it occupied a large area of ~12𝜆 along with a complex design. Likewise, the lumped LC resonators [21] and the traveling-wave [31], helical [33], and hybrid helical-spiral [35] structures left a considerable footprint.…”

“…Research demonstrates that wideband antennas can be realized with complementary structures [18], magneto-electric (ME) dipoles [19], slotted radiators [20], lumped LC resonators [21], parasitic elements [22], and a reactive impedance surface [23]. However, most of these methods exhibit spurious coupling, low gain, design complexity, or a large footprint.…”

A novel wideband dual‐polarized heptagonal magnetoelectric dipole antenna loaded with inverted L‐shaped structures

“…Recently, many ME dipole antennas have been designed for different applications, such as for 5G communication applications, [19][20][21][22] for satellite communication applications, 23,24 and for millimeter wave application. 25 In particular, a dual-bands and dual-polarized antenna was proposed in Cheng and Dong, 21 which can operate at the frequency region of 2.35-3.93 GHz (N41&N78) and 24-34 GHz (N257&N258) for 5G applications. At present, it is still an extremely challenge to simultaneously achieve dual polarizations and ensure a sufficiently wide overlapped bandwidth.…”

Design of a compact magneto‐electric dipole antenna with bandwidth and gain enhancement

“…In Reference 11, a low‐profile ME dipole antenna was designed for Ku‐band applications with broad bandwidth and stable radiation characteristics. For millimeter wave applications, a wideband ME dipole array antenna was designed in Reference 12 with dual‐polarization characteristics. In Reference 13, a wideband dual‐polarized ME dipole antenna was designed, with a loaded disk for gain improvement.…”