Circular Patch Antenna Array Research Articles

Dual‐port circular patch antenna array: Enhancing gain and minimizing cross‐polarization for mm‐wave 5G networks

Dual‐port circular patch antenna array: Enhancing gain and minimizing cross‐polarization for mm‐wave 5G networks

Performance analysis of the dual-band trapezoidal antenna array for ultra-wideband application

Designing a wireless transmission system with high data rates, high fidelity, and small size is a tough undertaking that has become more popular in the digital age. One of the most important components of wireless communication systems, such as wireless LANs, mobile WIMAX, and Bluetooth devices, is the design of an efficient antenna system. The new circular slot Trapezoidal patch antenna array, which operates in the ultra wide band frequency range of 3.1 GHz to 10.6 GHz, is introduced in this study. The FR4 substrate on which the antenna system is built has a dielectric constant of 4.4. The CST microwave studio suite is used to develop and analyze the performance of the compact structure patch antenna array. Antenna performance is examined in the frequency range of 2 GHz to 5 GHz. Antenna array resonance frequency is 3.1 GHz. By inserting a quarter wave line between the SMA connection and the micro stripline, 50 ohm impedance matching may be achieved. In comparison to previous studies, the intended antenna array has a minimum VSWR of 1.18, a maximum radiation efficiency of ?4.842 dB, and a directivity of 8.645 dBi. Using network analyzer, the test and simulation data were analyzed. The intended use of the antenna array system is for biomedical imaging and body area networks. Abbreviations: UWB: ultra wideband; EMI: electromagnetic interference; MIMO: multiple input multiple output; WLAN: wireless local area network; VSWR: voltage standing wave ratio; AVA: antipodal vivaldi antenna; DGS: defected ground structure; RF: radio frequency.

A computational model for generating multihyperuniform distributions for realistic antenna array and metasurface designs

This paper is aimed at studying the concept of multihyperuniformity and applying it to the design of shared-aperture antenna arrays and multi-bit coding metasurfaces. By formulating the theoretical foundation and essential geometric aspects related to this distribution, we create a computational model capable of generating both single hyperuniform and multihyperuniform distributions. Moreover, we put forward specific convergence acceleration techniques that effectively minimize computational time, particularly when dealing with a substantial number of elements. Considering the shape, size, and corresponding geometric constraints of the elements, we generate patterns suitable for practical designs of antenna arrays, as well as metasurfaces. We present an example of a multihyperuniform shared-aperture antenna array as illustration. Specifically, a penta-band circular patch antenna array operating in the C-band with low sidelobes and high realized gain over five different frequency bands is demonstrated. The computational model is also implemented for the design of a multi-bit coding metasurface with scattering reduction attributes.

Design of a Circular Concentric Microstrip Patch Antenna Array for WI-FI Band Energy Harvesting

Design of a Circular Concentric Microstrip Patch Antenna Array for WI-FI Band Energy Harvesting

Time-Efficient Multiplex Orbital Angular Momentum Beam Synthesis With Arbitrary-Shaped Array Using Multipole Moment Expansion

Despite the significant interest in pattern synthesis over the decades, the beam synthesis of orbital angular momentum (OAM) has received relatively little attention. In this paper, we present a time-efficient method for OAM beam synthesis based on multipole moment expansion. The approach introduces the multipole moment term as a transforming level, which separates the excitation coefficients and radiation pattern. We evaluate the performance of our proposed method through several examples and demonstrate its high capability to synthesize multiplex OAM beams with arbitrary-shaped arrays, ensuring reasonable accuracy. The theoretical analysis shows a significant improvement in computational efficiency and a great reduction in computational complexity compared to conventional synthesis methods. Finally, we design, fabricate, and measure a double-ring concentric circular patch antenna array using our proposed method, and the measured results confirm the validity of our approach. The work provides a valuable contribution to the field of OAM beam synthesis and offers a promising avenue for future research.

Design and Analysis of 1x4 and 1x8 Circular Patch Microstrip Antenna Array for IWSN Application

A 1x4 and 1x8 circular micro strip patch antenna array operating at 2.4GHz are simulated for Industrial Wireless Sensor Network (IWSN) applications using CST studio suite and MATLAB based simulator software. The circular patch antenna designed on a FR4 substrate with dielectric constant of 4.4 and a substrate height of 1.6mm is fed using inset-fed technique. Several antenna characteristics such as return loss, radiation pattern, bandwidth, directivity, antenna gain, radiation efficiency isanalyzed. The compact size and higher directivity help to improve the network performance by alleviating contention, increasing communication range, and mitigating interference of the system. Hence, the advantages gained, make the system more useful for IWSN applications as achieved in this research

Miniaturized Antenna for IOT Application

Ansys platform-based HFSS simulator software is used to create a 4GHz circular micro strip patch antenna array. Applications including Bluetooth, the Internet of Things, and several WLANs can all benefit from it. The circular patch antenna, which is constructed on a FR4 substrate with a dielectric constant of 4.4 and a height of 1.6mm, is fed using edge feeding. The antenna is built using a 1.4mm thick FR-4 (lossy) substrate with a relative permittivity of 4.4 and a microstrip line feed. The chosen radius for the circular patch is 7.62mm. To lower the size and enhance the performance of the suggested antenna, a square slit 30mm by 30mm in size is etched onto the ground plane. The HFSS Simulation Program is employed in the antenna's design. Antenna characteristics such as return loss, radiation pattern, bandwidth, orientation, antenna gain and radiated efficiency are all studied.

Design and Simulation of 2×2 Micro Strip Circular Patch Antenna Array at 28 GHz for 5G Mobile Station Application

Design and Simulation of 2×2 Micro Strip Circular Patch Antenna Array at 28 GHz for 5G Mobile Station Application

Fractal Loaded Circular Patch Antenna for Super Wide Band Operation in THZ Frequency Region

This work describes the design and analysis of a 22 circular micro-strip patch antenna array on a FR-4 epoxy substrate. The thickness of the substrate is 1.6 mm, and it is used in a variety of applications, including RADAR and radio frequency identification. The task involves creating a 22 circular microstrip patch antenna array that resonates at 2.4GHz and simulating it for use in Wireless Sensor Network (WSN) applications. An FR-4 Epoxy substrate is used to create a circular patch antenna array, which is then supplied using microstrip feed lines. A manufactured antenna has a 1.187GHz resonance. The analysis of antenna parameters includes gain, return loss, VSWR, directivity, reflection coefficient, and radiation pattern. In comparison to a 2x2 rectangular microstrip patch antenna, a 2x2 circular microstrip patch antenna generates better gain and less return loss. It is more helpful for WSN applications than a rectangular array due to its small size and improved directivity.

60-GHz Wideband L-Probe Circular Slotted E-Shaped Patch Antenna Array

In this study, a 60-GHz wideband L-probe circular slotted E-shaped patch antenna array was presented. The novelty of this study can be summarized as follows: 1) An E-shaped patch was added to the L-probe to further expand the bandwidth of the existing L-probe patch. 2) The E-shaped slot was modified to a circular slot to improve the overall performance, including the radiation pattern, S₁₁, and cross-polarization of the original E-shaped patch antenna element. When compared to the original L-probe patch, the bandwidth was improved from 9.4% to 24.8% for the proposed antenna element. Furthermore, when compared with the triangular-shaped and rectangular-shaped slots, the cross-polarization level is improved by 3.5 dB and 2.5 dB, respectively. The proposed antenna was designed as a 2x2 array structure, and the size of the antenna array corresponded to 6.4 mm×6.4 mm×0.375 mm. The measured results of the proposed antenna array revealed 11.42 dBi peak gain, 25.8% fractional 3-dB gain bandwidth, and 44.7% -8 dB S₁₁ bandwidth.

Design of Wideband Antenna Array for WiMax Application

Abstract: The evolution of wireless communication system has led path for innovative antenna design specifically in wideband antenna for WiMax application. In this paper design and simulation of microstrip wideband circular patch antenna array operating between 2GHz to 4Ghz is presented. The circular patch antenna is designed to operate at 3GHz line feed and the ground is itched to achieve required wideband characteristics. The simulation is carried out in EM Flow solver, High Frequency Structure Simulator software. For a single patch antenna, the return loss, lesser than -10dB throughout the bandwidth. Later an antenna array is operating between 2GHz to 4GHz frequency is designed and simulated. The return loss is lesser than -12dBi throughout the band and a peak gain is 14.7dBi. Keywords: Microstrip Patch Antenna (MPA), High Frequency Structure Simulator (HFSS).

Beam Divergence Reduction of Vortex Waves With a Tailored Lens and a Tailored Reflector

In this paper, we present a tailored lens and a tailored reflector in order to reduce the large beam divergence inherent to Orbital Angular Momentum waves (OAM waves-Vortex waves) that are generated by an Uniform Circular Patch Antenna Array (UCA) at 10 GHz. The tailored lens and the tailored reflector are designed by the shape function (5) and (9) around the antenna s center axis, respectively. The tailored lens is compared to UCA without and with conventional lens. The simulated and measured results show a significant improvement when using the tailored lens. Following, a tailored reflector is implemented and compared to UCA without and with conventional reflector. Firstly, the two reflectors are simulated with an impressed field source to neglect the influence of the UCA. The simulated results of the two reflectors show that the tailored reflector has a better performance than the conventional reflector when the height of the reflector $r_0$ is less than around 1.5 $\lambda$ and when the opening angle of the reflector theta is less than 38{\deg} (for UCA with $d$ of $\lambda/2$). In addition, the reflectors are simulated with real UCA with different shapes of PCB, which can disturb the reflected waves from the reflector. Two lenses and two reflectors are manufactured and measured in an anechoic chamber and compared to the simulation results. This paper shows that the vortex waves needs a special lens or a special reflector to reduce effictively the beam divergence especially when the radius of the UCA is very large.

Graphene Based Circular Shaped Micro Strip Patch Antenna Array for 2.45 GHz ISM Band Application

Graphene based circular microstrip patch antenna array is presented in this paper. First a single circular patch to resonate at 2.45 GHz is designed in HFSS, then 1 × 2 array and 1 × 4 array are developed in order to improve the gain. The designed patch and arrays are fabricated using copper and graphene and the antenna parameters are measured and compared. This research work mainly focuses on two things; one is to improve the gain by developing array and the other one is to develop graphene antenna array using a simple, low cost printing method. Both are achieved, as the gain is improved by ~ 5 dB for 1 × 4 array when compared to single patch and the graphene antenna is fabricated and tested for its performance and found to be working perfectly as antenna in ISM Band.

A study of a one-turn circular patch antenna array and the influence of the human body on the characteristics of the antenna

In this paper, an intelligent health monitoring system based on wireless body area network (WBAN) is considered, and a wearable one-turn circular patch antenna array designed for obese individuals is investigated. The purpose of this antenna array is to establish a good communication link between the human body and personal devices and to monitor the long-time health of these individuals. Thus, the far-field radiation pattern is considered an important indicator in the investigation and the omnidirectionality of a one-turn patch antenna array is pursued. In this research, first, the effect of the human body on a single patch antenna unit and a one-turn circular patch antenna array are explored. The arrangements of the patch antenna units in a one-turn antenna array are discussed. Then, an electromagnetic simulation is conducted mainly via the method of moment (MOM). The conclusions of the effect of the human body on a single antenna unit and antenna array are obtained. This study provides guidelines for the arrangement of wearable circular sensor antenna arrays. A method for the analysis of a cylinder antenna array is proposed as well.

Design and Analysis of 1x2 Circular Patch Antenna Array for 2.4 GHz Applications

A 1x2 Circular micro strip patch antenna array operating at 2.4GHz using Ansys based HFSS simulator software is designed. It is useful for different WLAN (wireless local area network) applications, Bluetooth and IoT communications. The circular patch antenna is constructed on a FR4 substrate with dielectric constant = 4.4 and height of the substrate is 1.6mm and is fed using edge feeding technique. Several antenna characteristics such as return loss, radiation pattern, bandwidth, directivity, antenna gain, radiation efficiency etc. are studied.

Verification of Performances Enhancement by Array Configuration Technique in Patch Antenna Design for Energy Harvesting Applications

This paper presented the analysis of element in designing a micro strip patch antenna. A single element of the circular patch antenna and 1x2 array elements of circular patch antennas were simulated, fabricated, measured, analyzed, and discussed in this work. Array configuration study is the essence of this research. In order to improve the performances of an antenna, the implementation of array configuration is one of the techniques in designing the patch antenna. Based on the results, it has been verified that an array configuration technique works in enhances and improves the patch antenna performances. This paper also discussed the fabrication process involves and comparison of performances between simulation and measurement.

RANCANG BANGUN ANTENA MIKROSTRIP PATCH CIRCULAR DENGAN TEKNIK LINIER ARRAY UNTUK FREKUENSI WIFI 2,4 GHZ

<p>Microstrip antenna when the antenna is one of the very rapid development in telecommunications systems that applied to many modern telecommunication equipment today. One application is the wifi. Wifi (Wireless Fidelity) is a wellknown tech-nology that utilizes an electronic device to exchange data wirelessly (using radio waves) over a computer network, including high-speed Internet connection, to provide a network connection to all users in the surrounding area. The purpose of this final project is to design microstrip patch antenna built a circular linier array that can be used for signal wifi stronger. The resulting microstrip antenna working in 2.4 GHz band with the acquisition of gain =3.4301 dBi, VSWR = 1.3749 and radiation pattern unidirectional. This antenna design simulation using the software Ansoft High Frequency Structure Simulator v13. For linear circular microstrip patch antenna array then showed its parameters.<br />Keywords: Microstrip Antenna, Wifi, Array, VSWR, Gain</p>

Patch Antenna Array Designs for Wireless Communication Applications Inside Jet Engines

In this paper, two different patch antenna geometries are proposed for wireless sensor applications involving electromagnetic propagation from inside the jet engine to our designed relaying antenna at the rim of the inlet. First, an enhanced modified version of our earlier proposed two-element circular patch antenna array is proposed. We follow with a fresh new design based on two-element array of hybrid rectangular circular patch antenna geometry. Both antenna designs are discussed in light of basic governing equations enabling initial design calculations, intuitions behind selecting the design elements based on desired propagation characteristics, simulation results, as well as fabrication and experimental measurements. Because of the environmental constraints, the proposed antennas need to be an extremely low profile and ultrathin. The proposed relaying antennas are designed to have a dual-beam pattern, one of which is directed toward the inside of the jet engine. The antennas are simulated using HFSS as well as fabricated and measured inside an anechoic chamber. Experimental results, which sufficiently agree well with the simulation results, demonstrate the achievement of the desired characteristics by fabricated antennas for deployment on jet engines.

Patch Antenna Array Feed Design for a Dish Antenna

This paper presents the design and simulation of a patch antenna array as feed for a parabolic reflector antenna in C-Band. This configuration is to serve as an alternative to conventional feed horns for in-orbit satellites to solve the size and weight problems they constitute. A 4x1 C-Band circular patch antenna array configuration with a broadside radiation pattern is designed as feed for a dish antenna with aperture illumination of 140°. The result of analysis and simulations of the model using MATLAB and CST MWS-2012 software package suggests that the patch antenna array feed radiation characteristics are very competitive when compared to that achieved with conventional feeds for dish antennas of the same aperture illumination.

Wideband circularly‐polarized serial rotated 2 × 2 circular patch antenna array

AbstractIn this article, a novel wideband cularly‐polarized serial rotated 2 × 2 circular patch antenna array is presented. The patches are excited sequentially by a broadband feed network. It is found that the antenna array can deliver a measured impedance bandwidth of 46.6% for SWR < 2, 3‐dB axial‐ratio measured bandwidths of 40%, and the measured bandwidth of 70.1% for the gain > 3 dBi. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 3122–3124, 2007; Published online in Wiley Inter‐Science (www.interscience.wiley.com). DOI 10.1002/mop.22889