Abstract
This paper proposes the design of a four-element array planar antenna based on a single antenna that combines the Double Positive (DPS) and Epsilon Negative (ENG) materials. The single antenna consists of a microstrip segment (which is equivalent to a DPS material) connected to a grounded microstrip segment (which is equivalent to an ENG material). T-Junction power dividers with one-input and two-output ports are used for feeding the two-element and the four-element array antennas. The proposed array antenna is designed to operate optimally at 30GHz frequency under Finite Element Method (FEM)-based simulation. The obtained simulation results show that the proposed array antennas have good radiation performances, in which the four-element array antenna has a -10dB bandwidth ranging from 28.7 to 33.4GHz and 12.9dBi gain.
Highlights
The rapid development of the millimeter wave communication systems poses many challenges in matching the requirements of these systems, especially the antenna designs for 5G communication systems [1,2]
It is well known that the Composite Right/Left-Handed (CRLH) Transmission Line (TL) has the unique property of an infinite-wavelength wave at a specific non-zero frequency where permittivity and permeability are zero [4,5]
The resonant frequency of the single antenna is verified with various lengths of the Double Positive (DPS) segment while the width of the radiator is fixed at wp = 1.5mm
Summary
The rapid development of the millimeter wave communication systems poses many challenges in matching the requirements of these systems, especially the antenna designs for 5G communication systems [1,2]. These modern antennas are required to be lightweight, to have small size, and to be fabricated . The conventional antennas are usually large because the operating wavelength is always relative to their size. It is well known that the Composite Right/Left-Handed (CRLH) Transmission Line (TL) has the unique property of an infinite-wavelength wave at a specific non-zero frequency where permittivity and permeability are zero [4,5]. The four-element array antenna exhibits wide-bandwidth and high gain that can be used for the millimeter wave systems at the frequency of 30GHz
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