Design and analysis of high gain 2×2 and 2×4 circular patch antenna arrays with and without air-gap for WLAN applications

Sabri

et al. 2022

ARASET

In this paper, the design and simulation of rectangular microstrip antenna arrays for improving antenna gain is performed for point-to-point application. The proposed design is composed of four elements microstrip antenna with an array configuration operating at 5.8 GHz. Each element is constructed from four truncated arrays radiating elements and an inclined slot on each patch which capable to achieve circular polarized capability. The design of the 2x1 and 2x2 of rectangular microstrip array antenna was implemented from the designed of single rectangular patch antenna as the basic building element. The designed 2x1 and 2x2 array were fed by microstrip transmission line which applied a technique of quarter wave impedance matching. The antenna design was etched on Rogers RT 5880 substrate with 2.1 and 1.53 mm of dielectric constant and thickness respectively. All the designed structure were simulated in CST software. The main results of the designed antennas were compared in terms of gain, axial ratio and return loss. Based on the return loss simulation results, the designed antennas resonated exactly at the desired resonant frequency of 5.8 GHz which indicates good antenna designs. Compared to the single patch antenna having an antenna gain of 8.26 dB, the 2x1 and 2x2 arrays achieved a gain of 10.24 dB and 13.29 dB respectively. The results show that the designed rectangular microstrip antenna arrays have an improved gain performance over the single patch antenna.

Section: Rectangular Microstrip Patch Array Antennamentioning

confidence: 99%

5.8 GHz Circularly Polarized Rectangular Microstrip Antenna Arrays simulation for Point-to-Point Application

Sabri

et al. 2022

ARASET

“…When the edge of the rectangular patch is truncated, the current will distribute to the antenna based on the physical dimension of patch and form a circular polarization. Besides, it is found that the construction of many patch with an array can improved the antenna gain [15]. The patch antenna is fed by using transmission line which separated into two lines based on the number of radiating elements.…”

Section: Antenna Design Geometrymentioning

confidence: 99%

2 × 1 Circularly Polarized Rectangular Microstrip Patch Array Antenna

Sabri

Lecture Notes in Electrical Engineering

Lee

2021

This paper presents a high gain of 2 × 1 circularly polarized rectangular microstrip array antenna for wide communication. This paper study the design and the simulation of the array antenna in terms of S-parameter, antenna gain, and the axial ratio. The 2 × 1 array antenna with dimension of 130 × 80 mm is proposed. The presented design is composed of two elements of microstrip patch antenna with an array configuration. The truncated edge of the patch and the inclined slot are the techniques used in order to achieve circular polarized capability. The antenna is fed by microstrip transmission line with full ground plane and etched on Rogers RT 5880 substrate with 2.2 and 0.51 mm of dielectric constant and thickness respectively. The antenna substrate is layered by 3 layers in order to increase the substrate thickness to 1.53 mm. The patch antenna is fed by using microstrip transmission line which separated into two lines based on the number of radiating elements. The quarter wave impedance matching technique is used to match the radiating patch. The 50 transmission line are utilized to be matching between 70 and 100 . The 2 × 1 array antenna achieved a gain of 10.77 dB with a return loss of −24. 63 dB at a desired frequency of 5.8 GHz.

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023

“…These antennas have both benefits and disadvantages, they are light, have minimal manufacturing costs, operate at microwave frequency, high compatibility with integrated circuit technology and are compact; nevertheless, the most significant downside is that they have a poor gain. Various approaches are offered to achieve the required high gain in the millimeter wave bands, including using of metamaterials in the role of substrate [2], parasitic patch [3], air gap [4], slot [5], shorting pin [6], metamaterials [7], dielectric substrates [8], antenna array configurations [9], multilayered substrate technique [10] and incomplete ground [11]. Additionally, the use of a photonic crystal structure has been proposed to solve the problem of surface waves [12,13].…”

Section: Introductionmentioning

confidence: 99%

Fractal Patch Antenna based on Crystal Photonic applied to Intelligent Transportation Systems in the 40 GHz Millimeter Waveband

Bagheri,

Khan,

Teixeira

et al. 2023

5G (and beyond) has very high bandwidth, short latency, better quality of service, and the right amount of capacity. Technological breakthroughs in mobile communication systems user equipments operating in the millimeter wavebands imply a high gain to compensate the effect of path loss. In this work, a novel photonic crystal-based microstrip patch antenna array with high gain is designed to be used in the next generation intelligent transportation ssytems, e.g., V2X, and other exciting applications. The Photonic Band Gap (PBG) structure and Finite Element Method were considered. By using the High Frequency Structure Simulation (HFSS) software, a fractal microstrip patch antenna operating in the U-band of the electromagnetic spectrum is conceived and modeled on a two-dimensional photonic crystal. The use of the PBG structure improves the antenna's gain and bandwidth, while the antenna's fractal form decreases its size and improves its input impedance. The operational frequency range is 41.72-45.12 GHz with a resonant band centered at 43.26 GHz. The proposed antenna is comprised of a 0.45 mm thick copper ground plane, a 0.9 mm thick FR-4 epoxy substrate with a relative transmittance of 4.4, and a 0.45 mm thick copper antenna patch. The achieved frequency band gain is 8.95 dBi.