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Comparative Performance Analysis of Microstrip Patch Antenna at 2.4 GHz and 18 GHz Using AN-SOF Professional
Abstract
The main aim of this paper is to simulate and analyze the performance of a rectangular patch antenna at frequencies 2.4 and 18 GHz. The simulation results show that the antenna has achieved a gain of 5 dB at 2.4 GHz and 6 dB at 18 GHz. These two frequencies are used in many wireless applications (2.4 GHz) and Ku-band applications (18 GHz). Here, the patch antenna is designed and simulated in AN-SOF PROFESSIONAL V3.5. The simulated results such as the gain, directivity, radiation pattern, and VSWR at both frequencies are compared and discussed in this paper.
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The paper present the Circular Microstrip Patch Antenna designs with slit-slot for multiband purpose in wireless communication. We have designed a circular microstrip patch antenna (CMPA) for 1.3GHz used in wireless communication. We have designed CMPA with 2slit slot, 3slit-slot, and 6slit-slot and observed results for different designs, and finally it is shown that as slit-slot increases to six slit-slots bandwidth is initially increased up to 3 slit-slots and finally reduced for six slit-slots. The multiband antenna uses for wireless communication in different applications. Bandwidth improvement is about 63.3%, 72.10% and 37.5% respectively in two, three and six slit-slotted patch when compared to their basic design bandwidth band. Antenna is changed to multiband by slit-slot Circular Microstrip Patch Antenna (CMPA).
This paper presents a broadband microstrip patch antenna for wireless communication. In its most basic form, a microstrip patch antenna consists of a radiating patch on one side of a dielectric substrate which has a ground plane on the other side. The patch is generally made of conducting material such as copper or gold and can take any possible shape. A rectangular patch is used as the main radiator. There are several advantages of this type of broadband antenna, such as planar, small in size, simple in structure, low in cost, and easy to be fabricated, thus attractive for practical applications. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2.4 GHz with gain 11 dB for outdoor place. It also has a wide angle of beam in its radiation pattern. The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity.
This paper describes variety of feeding technique
applicable to microstrip patch antenna which is one of the
important aspects. A good impedance matching condition
between the line and patch without any additional matching
elements depends heavily on feeding techniques used. After
describing various feeding techniques, the paper gives a better
understanding of the design parameters of an antenna and their
effect on bandwidth and gain. Finally, simulation is done using
design software IE3D. The Coaxial Probe Feed Microstrip
antenna provides a bandwidth of around 20%. For aperture
coupled antenna the simulated results of IE3D agrees well with
the results generated by ANN (Artificial Neural Network
model).
This paper presents two compact ring slot antennas which are suitable for the PCS-1900 and the 2.4/5-GHz triple-band operations. The first antenna consists of three annular ring slots. The outer ring is responsible for exciting the first resonant mode whereas the middle ring excites the second resonant mode. The inner most rings, through their Y-shaped slots, create a wide upper operating band by combining the third and fourth resonant modes. To improve this antenna, we have employed circular Photonic Bandgap (PBG) structures in order to obtain a smaller slot antenna with better radiation characteristics. In this design, the cross-polarization level in the E-plane has reduced compared to the first antenna by 5.5 dB, 0.3 dB and 4 dB in the three resonant bands. Also, the cross- polarization in H-plane has reduced by an amount of 3 dB. In addition, the obtained results show that the co-polarization patterns are very similar in all three frequency bands. In both cases we have reduced the size of antennas to 56% and 42% respectively, of conventional microstrip slot antennas. The simulation results are verified by measurements.
Abstract—Circular polarization (CP)designs of circular and rectangular microstrip patch antennas are demonstrated. Proximity coupled feed and,aperture coupled feed methods,are used. The proposed CP designs are achieved by implementing a suitable cross- slot either on the patch (in the case of proximity coupled feed method) or on the ground plane (in the case of aperture coupled feed method), which results in excitation of two near degenerate orthogonal modes of near equal amplitudes and 90, phase difference. Attempts are made to change the geometry of slots’ ends to introduce a novel structure in order to achieve a better matching performance.
In this paper, a triple-band printed dipole tag antenna is proposed for Radio Frequency Identification (RFID). The triple-band printed dipole antenna is designed to operate at 0.92 GHz, 2.45 GHz and 5.8 GHz using Computer Simulation Technology (CST) software. In order to achieve triple-band operation, the proposed antenna contains two branch elements, which act as an additional resonator. The designed antenna is fabricated using Taconic RF-35 substrate with a dielectric constant (ε r) of 3.5 and thickness (d) of 0.508 mm. The antenna's parameters for triple-band operation are investigated and discussed. Then, this fabricated antenna is integrated with a UHF microchip to become a passive UHF tag. This tag is tested by measuring the reading distance and it is found that the proposed tag can be used for RFID application.
A triple-band low-profile planar antenna is developed for wireless applications. The triple-band planar antenna consists of a two-strip monopole for the 2-GHz band, a horizontal monopole for the 3.5-GHz band, and a vertical monopole for the 5-GHz. The planar antenna is printed on a very thin substrate (0.254 mm in thickness) with a very low profile (8 mm in height). The antenna achieves a bandwidth of ~35% at the 2-GHz band, ~10% at the 3.5 GHz, and ~15% at the 5-GHz band, which may find applications in wireless/mobile devices.
Millimeter-wave wireless technology (mmWave) has become a part of human life for fast and secure data transmission. This document introduces a 37GHz resonant frequency square microstrip patch antenna for mm Wave wireless communication. The antenna was designed and tested on a Rogers RT5880 board with a relative permittivity of 2.2 and a loss factor of 0.0009. Uses electromagnetic simulation software High Frequency Structure Simulator. The result of this paper shows minimal return loss -0.0812 dB, gain -1.205 dB, and impedance bandwidth 16.22% at 37 GHz resonant frequency. The voltage standing wave ratio (VSWR), radiation pattern has also presented for the proposed antenna which can be strong candidate for 5G mmWave cellular communication.
This paper provides an overview of the development of microstrip patch antennas. Primarily various mi- crostrip antennas that have been used in the past years have been evaluated as part of this research. Detailed analysis of the previously available microstrip antennas as well as their technologies involved. Applications of microstrip antennas, their present situation and the future trends of microstrip antennas are examined in this paper.
There is a huge increase in design of various wireless antennas for daily and commercial use. They are designed with various specifications. After deeply analyzing the comparisons, this paper is a result of comparison of two designs, namely micro strip patch antenna at 2.4GHZ using EZNEC and another micro strip patch antenna at 10.65GHZ using ADS. This comparison differentiates the results based on directive gain and other parameters.. Patch antenna is a wafer like directional antenna suitable for covering single floor, small office; small stores and other inter locations where access point cannot be placed centrally. Patch antenna produce the hemispherical coverage, spreading away from the mount point at a width of 30-180degree. Patch antenna also known as planar, slap planar or micro strip antennas. They are formed by overlying two metallic plates, one larger than the other, with dielectric sheet in the middle. This type of antenna is usually encased in black plastic or white plastic, not only to protect the antenna but also to make it easy to mount because they are flat , thin and light weight, patch antenna are often hung on walls of ceilings where they virtually cursive and blend easily into the background. The patch conducting in micro strip antenna may have planar or non-planar geometry.
Millimeter-wave antennas have been developed for various applications such as broadband highspeed wireless communication systems and automotive radar systems. Microstrip antennas are more advantageous than other millimeter-wave antennas at the viewpoints of low profile and low cost. On the other hand, feeding loss due to transmission loss of microstrip line is significant problem in array feeding. So, microstrip array antennas are suitable for relatively low gain applications such as a subarray of digital beam forming (DBF) systems. A comb-line feeding system is effective at the point of relatively low loss compared with other microstrip patch array antennas (MSA) fed by parallel or ordinary series feeding [1]. A travelling wave array antenna has a significant problem that gain is degraded due to beam shift in frequency changes when the array antenna is fed from one end of the feeding line. A center feeding microstrip comb-line antenna (MSCLA) is one of the solutions to reduce the gain degradation due to frequency change [2]. However, a blank area exists at the center above the microstrip-to-waveguide transition in the aperture radiation distribution, which causes elevation of sidelobe level (SLL). To fill the radiation source in the blank area, we designed four-microstrip-port waveguide transition with slot radiators. We proposed a center feeding 2 × 2 MSA and a 2-line 6-element MSCLA fed by the transition in this paper. We compared the simulated radiation patterns of the antennas fed by the transitions with slot radiators and without slot radiators in the computer analysis.
This paper presents a design of triangular microstrip antenna with truncated tip and experimentally studied on Ansoft Designer v-2.2.0 software. This design technology is achieved by cutting all three tips of the triangular microstrip antenna and placing a single coaxial feed. Triangular patch antenna is designed on a FR4 substrate of thickness 1.6 mm and relative permittivity of 4.4 and mounted above the ground plane at a height of 6 mm. Bandwidth as high as 11.07% are achieved with stable pattern characteristics, such as gain and cross polarization, within its bandwidth. Impedance bandwidth, antenna gain and return loss are observed for the proposed antenna. Details of the measured and simulated results are presented and discussed.
The approach in this book is historical and practical. It covers basic designs in more detail than other microstrip antenna books that tend to skip important electrical properties and implementation aspects of these types of antennas. Examples include: quarter-wave patch, quarter by quarter patch, detailed design method for rectangular circularly polarized patch, the use of the TM11 (linear and broadside CP), TM21 (monopole CP pattern) and TM02 (monopole linear) circular patch modes in designs, dual-band antenna designs which allow for independent dual-band frequencies. Limits on broadband matching are discussed. The appendix contains useful simple matching approaches, design details (gain, matching, sidelobes) of the little-studied omnidirectional microstrip antenna (OMA), limits and properties of common single and dual band Planar Inverted F Antenna (PIFA) antenna designs. The second edition has numerous additions to the earlier text which will make the concepts presented clearer. New cavity model analysis equations of circular polarization bandwidth, axial ratio bandwidth and power fraction bandwidth have been included. The section on omnidirectional microstrip antennas is expanded with further design options and analysis. This is also true of the section on Planar Inverted F (PIFA) antennas. The discovery and description of the fictious resonance mode of a microstrip slot antenna has been added to that section. Appendix A, on microstrip antenna substrates has been expanded to provide more detail on the types of substrate and their composition. This is often neglected in other texts. An appendix on elementary impedance matching techniques has been added as these methods have proven useful in my industrial work.
A bow-tie-shaped meander slot antenna fed by a microstrip line is proposed for 5 GHz applications. A conventional bow-tie slot antenna has a broad bandwidth; however, it is relatively large, and is thus inappropriate for miniaturized communication systems. Meanwhile, the meander slot antenna has small size, but its bandwidth is quite narrow. To realize miniaturized antennas having large bandwidth, we combine the bow-tie slot and meander slot geometries heuristically. Simulation results, confirmed by measured data, show that, for antennas designed to operate at 5.25 GHz, the proposed antenna is 65.5% smaller in size than the bow-tie antenna and the bandwidth is 3 times larger than that of the meander slot antenna.
Analysis and optimized designs are presented of three types of single feed circularly polarized microstrip antennas, namely, a diagonal fed nearly square, a truncated-corners square and a square with a diagonal slot. The Green's function approach and the desegmentation methods are used. The resonant frequencies are calculated for two orthogonal modes which together yield circular polarization. Optimum feed locations are determined for the best impedance match to a 50 Omega coaxial feed line. Axial-ratio bandwidths, voltage standing-wave ratio (VSWR) bandwidths and radiation patterns are evaluated and verified experimentally.
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