Abstract
This paper presented the design and implementation of a 60 GHz single element monopole antenna as well as a two-element array made of two 60 GHz monopole antennas. The proposed antenna array was used for 5G applications with radiation characteristics that conformed to the requirements of wireless communication systems. The proposed single element was designed and optimized to work at 60 GHz with a bandwidth of 6.6 GHz (57.2–63.8 GHz) and a maximum gain of 11.6 dB. The design was optimized by double T-shaped structures that were added in the rectangular slots, as well as two external stubs in order to achieve a highly directed radiation pattern. Moreover, ring and circular slots were made in the partial ground plane at an optimized distance as a defected ground structure (DGS) to improve the impedance bandwidth in the desired band. The two-element array was fed by a feed network, thus improving both the impedance bandwidth and gain. The single element and array were fabricated, and the measured and simulated results mimicked each other in both return loss and antenna gain.
Highlights
The rapid changes in wireless communication require a rapid increase in system capacity.This rapid growth and demand for higher data rates were the key factor in the development of the 5th generation (5G) communication system
This paper presented the design of a single element monopole antenna and its array operating at
The proposed antennas were designed from a monopole patch and defected ground structure (DGS) ground structures, employing a corporate feed network that evenly distributed the power to each element to achieve wide bandwidth and high gain
Summary
The rapid changes in wireless communication require a rapid increase in system capacity. The fabrication of the feeding network in the mmWave frequencies exhibits a lot of challenges during its implementation [5,6,7,8,9] These challenges are caused mainly by the increase in microstrip line losses at mmWave frequencies. The work of [21] proposes an antenna with DGS on the ground plane to compact the size of the microstrip antenna without the degradation in performance This antenna is realized using an array consisting of 2 × 2 mm-wave microstrip antenna array usable in 5G applications in [22]. The optimized antenna was expanded to two-elements with a partial ground DGS and an enhanced feeding network designed to enhance the radiation characteristics and bandwidth.
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