Wideband magneto‐electric dipole antenna with a claw shaped reflector for 5G communication systems

Abstract

A wideband magneto‐electric dipole antenna with a claw‐shaped reflector is presented for future 5G communication systems. A pair of E‐shaped radiating patches is used to form an electric dipole, while two folded patches, which are shorted to the ground, are used as the magneto dipole. Four inverted‐L parasitic branches are introduced on the four corners of the ground, producing new resonant points. The four parasitic branches along with the ground plane form a claw‐shaped reflector for the antenna to obtain stable directional radiation patterns. This antenna is fed by a modified feeding structure to improve the matching of the working band. The measured results show that the reflection coefficient is less than ‐10 dB in a relative bandwidth of 103.6% (1.18‐3.72 GHz). The average gain in the working band is around 7.6 dBi. As a result, the proposed antenna can be a favorable candidate for future 5G communication systems.

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

“…Nevertheless, the antenna suffered from design complexity and difficulty in fabrication. In X. Zhang et al, 10 though the bandwidth of the proposed antenna was up to 103%, it has only one polarization. In Syed Nasser and Chen 11 [13][14][15][16][17][18] to achieve wideband or beamwidth improvement.…”

“…Nevertheless, the antenna suffered from design complexity and difficulty in fabrication. In X. Zhang et al, 10 though the bandwidth of the proposed antenna was up to 103%, it has only one polarization. In Syed Nasser and Chen 11 and Guo and Leung 12 two novel antennas were proposed, while both of them have bandwidths of 46.4% and 31.3%, respectively.…”

Broadband Dual-Polarized Magnetoelectric Dipole Antenna With Compact Structure for 5G Base Station

“…The antenna is a combination of an electric dipole and a short-circuit patch, with stable radiation patterns and low backward radiation, while easily achieving wide band characteristics. For example, in [13], [14], [15], [16], [17], [18], and [19], the ME antenna with high directivity and wide band characteristics is designed, but the above antennas are all single-polarized. In [20] and [21], the two pairs of magnetoelectric dipoles were placed orthogonal to realize double polarization, and the impedance matching at low frequencies was improved by loading metal rings and parasitic patches on the top, but the radiation pattern would be depressed or deformed at high frequencies.…”

A wideband magnetoelectric dipole antenna for 4G/5G communication

“…Various kinds of wideband ME dipole antennas have been developed state-of-the-art. [8][9][10][11][12][13][14][15][16][17][18] In general, two parts of the ME dipole antenna, that is, the primary radiation structures and the feed structure(s), can be modified to generate a wider bandwidth. In Li and colleagues, [8][9][10][11] the primary radiation parts are redesigned.…”

“…Various kinds of wideband ME dipole antennas have been developed state‐of‐the‐art 8–18 . In general, two parts of the ME dipole antenna, that is, the primary radiation structures and the feed structure(s), can be modified to generate a wider bandwidth.…”