Miniaturized Dual-Band Antenna for GSM1800, WLAN, and Sub-6 GHz 5G Portable Mobile Devices

Abstract

Miniature devices are becoming increasingly demanded as fifth-generation (5G) technology is been deployed. This has necessitated the need to miniaturize all the various components of 5G enabling systems. It is a well-known fact that without the antenna, there is no wireless communication as it forms the link between the space and the wired network. Hence, the miniaturization of the antenna will contribute to the miniaturization of the entire wireless system. In this work, a miniature dual-band ultracompact antenna based on an opened-B-shaped (OBS) patch, a partial ground, and a ground protruding stub is presented. The antenna size is 0.14 × 0.07 λ o λ o @ 1.85 G H z . The proposed antenna is etched on a rogers (RT5880) substrate and fed with a 50 Ω asymmetric microstrip feedline. The proposed OBS antenna is fabricated and measured. In addition, the equivalent circuit of the proposed OBS antenna is designed and analyzed using AWR®. The antenna operates at a center frequency of 1.85 GHz and 5.89 GHz with an impedance bandwidth of 10.41% and 36.29%, respectively, which means that the first and second bands are narrow and wide bands, respectively. Furthermore, the mean peak gain of the proposed OBS antenna at lower and upper bands are 4.1 dB and 3.95 dB, respectively. More so, the radiation pattern antenna shows a quasiomnidirectional at E-plane and omnidirectional at H-plane. There is a good agreement between simulated and measured results. Therefore, the proposed OBS antenna is a suitable candidate for future portable mobile devices.

Design of a Circular Patch Antenna with Parasitic Elements for 5G Applications

“…As the performance of the antenna results considerable influence on the accomplishment of the plenary communication systems. Lately, research on 5G antenna is very attractive and has been a continuing process [11][12][13]. For literal applications, the extensively utilized compact size and broadband antennas are more delightful [14][15][16][17][18][19][20].…”

Design of Flexible Multi-Band Miniature Antenna Based on Minkowski Fractal Structure and Folding Technique for Miniature Wireless Transmission System

“…Firstly, the special patch structure can be used to excite the high resonance mode of the antenna to achieve multi-band and antenna miniaturization. Abolade [4] explored an open B-bend patch to design dual-band antennas operating at 1.85 GHz and 5.89 GHz with bandwidths of 179 MHz and 2290 MHz and an antenna dielectric substrate size of 19 × 12 mm 2 . Similarly, Zhang [5] proposed an open ring patch structure and designed a reasonable ground plane to achieve 2.4 GHz, 5.2 GHz and 5.8 GHz multi-band resonance, bandwidth of 80 MHz and 3410 MHz, and an antenna dielectric substrate size of 25 × 20 mm 2 , of which the 2.4 GHz band is narrow.…”

A penta‐band microstrip slot antenna for S‐, C‐ and X‐band applications

“…Many multi‐band antennas using different techniques have been proposed in the literature. These techniques for multiband antennas include a triple‐band antenna by three separate meander‐line types inverted‐L radiators [1], a dual‐band B‐shaped patch antenna [2] and a penta‐band patch antenna [3] with the partial ground, metamaterial integrated antennas for multi‐band operation by employing a triangular split ring resonator (TSRR) [4] and a complementary split‐ring resonator (CSRR) [5], using circular and triangular fractal structures [6], a quad‐band magneto‐electric (ME) dipole antenna designed by four Γ‐shaped electric plates for achieving four operating bands [7], and a CPW‐fed multi‐band antenna [8]. Besides, several multiband antennas have been developed by the utilization of non‐conventional radiating and substrate materials.…”