The probe position can be inset for matching the patch impedance with the input impedance. Thus in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulator. We use a simple rectangular, half wave long, probefed patch operating in. Introduction n 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 as shown in figure 1. Then, the method of moments is employed to solve the. Proposed microstrip patch antenna patch element as shown in figure 1 are shown below by using equations 1 and 2. The outer conductor of the coaxial cable is connected to the ground plane, and the center conductor is extended up to the patch antenna. The second group focused on the design and simulation of patch antennas which are widely used in cell phones today with an emphasis on optimization of a 1. Hfss design of circular patch antenna using coaxial. Pdf high frequency structure simulator hfss tutorial. First the model of the microstrip patch antenna has to be drawn in hfss. The dimensions of antenna can be found in the hfss simulation file. It consists of area of metallization supported above a ground plane by a thin dielectric substrate and fed against the ground at an appropriate location.
Software used to design microstrip patch antenna hfss is commercial finite element method solver for electromagnetic structures from ansys corp. Wideband rectangular microstrip patch antenna using l. The dimensions of patch antenna were calculated based on the three essential parameters. The following notes will provide a brief summary of goals. Jul 31, 2016 there are several feeding mechanisms for patch antennas. However, this discussion is limited to a 12ghz plane slot array and radiation and dielectric losses are neglected. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. General navigation of software menus, toolbars, and quick keys. The location of the feed is selected for the proper impedance, and to create a current distribution that results in the desired polarization of the radiated wave. Th is tutorial was intend ed to introduce the user to the basic comm ands and. Firstly, the structures of microstrip antennas in threelayered spherical media fed by lprobe are established as similar as the plane case. Co and crosspolar ludwig3 scheme used 3d radiation patterns throughout the operating band and structure orientation. Figure 2 feeding the patch antenna with the feedline on the underside of the substrate laminate. Create the probe create air body assign radiation boundary create radiation setup.
Hfss tutorial 1 microstrip patch antenna with coaxial feeding duration. In coaxial probe feed, there are two materials, say inner and outer. Abstractin this paper, the l probe fed patch microstrip antennas in a multilayered spherical media are analyzed based on the method of moments mom. As it is difficult to build antenna and estimate physically we can simulate it using high frequency structure simulator hfss. Figure 3 a patch may be fed at two points along adjacent edges. The main motto of the analysis is to provide improved transmission. The parameters evaluated were gain, beamwidth and return loss. The laalo 3 was chosen as a substrate material for the designed patch antenna with a dielectric constant of 23. Design, simulation and analysis of a probe feed patch. Introduction in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulation software by ansoft.
Parameter value mm w 79 l 38 wh 2 lh 18 we1 4 le1 37 we2 11 le2 12. Progress in electromagnetics research, pier 61, 215230, 2006 using electromagnetic bandgap superstrate to enhance the bandwidth of probefed microstrip antenna. The position of the feed can be altered as before in the same way as the. Lprobe with patch rez lprobe with patch imz patch resonance lprobe resonance fig. Journal of computing design of coaxial fed microstrip. L probe with patch rez l probe with patch imz patch resonance l probe resonance fig.
Wideband rectangular microstrip patch antenna using lprobe. Hfss stands for high frequency structural simulator. Index terms probe feed, antenna and radiation efficiency, return loss, radiation pattern, substrate i. There are several feeding mechanisms for patch antennas. You can use two semirigid coaxial cables with their outer shields soldered together. This paper presents the design of antenna that operates in s.
The photograph of the proposed patch is shown in figure 2. Chapter one the dipole antenna i introduction the monopole and dipole antennas are commonly used for broadcasting, cellular phones, and wireless communications due to their omnidirective property. Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line. The efficiency of microstrip antenna arrays may be improved significantly by reducing losses in the feed network. Design of probe feed microstrip patch antenna in s band. Licensed to youtube by wmg, ultra music, merlin xelonentertainment, kontor records on behalf of. We use a simple rectangular, half wave long, probe fed patch operating in its fundamental mode as an example. Model a simple 9x5 probefed patch array from a reference. Hfss, problem with using wave port to feed the dipole patch antenna i would suggest that you add the proposed feed structures to the antenna. The design and simulation of patch antennas is widely used in mobile cellular phones today, and our emphasis in this work is on optimization of a 2. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. Mosig, analysis of finite phased arrays of microstrip patches, ieee trans. Hfss for the dipole antenna ansoft high frequency structure. Use the patchmicrostripcircular object to create a probe fed circular microstrip patch antenna.
Inset fed triangular shaped patch antenna design at 2. A dual band antenna and a microstrip fed patch antenna, used in the communication lab. Patch antennas rectangular and circular probefed patch, insetfed rectangular patch microstrip or patch antennas find uses in applications that require low profile antennas without compromising performance. The project here provides a detailed study of how to design a probefed square microstrip patch antenna using hfss, v11.
Use the patchmicrostripcircular object to create a probefed circular microstrip patch antenna. Ansoft high frequency structure simulator tutorial the dipole antenna april 2004. In particular, the dimensions of the patch are given along with the feed network. Patch antennas rectangular and circular probe fed patch, inset fed rectangular patch microstrip or patch antennas find uses in applications that require low profile antennas without compromising performance. Mar 07, 2016 software used to design microstrip patch antenna hfss is commercial finite element method solver for electromagnetic structures from ansys corp. This dipole antenna geometry created from the 3d component library contains geometry and excitation that defined a dipole antenna it does not include the geometry for an air volume surrounding the antenna the dipole antenna 3d component is fully parameterized and the geometry can be changed at any time by highlighting the. Proposed novel probe feed microstrip patch antenna is presented. Dipole antenna frequency shift using rt duroid case.
Microstrip antennas can also be fed from underneath via a probe as shown in figure 3. A general purpose dipole antenna long thin wire antenna with height h 1 h 2 l2, where l is the total length of the antenna is shown in figure 1. The proposed antenna consists of a microstrip patch with a ushaped slot that is fed by a broadband electromagnetic coupling probe, known as lprobe. Logperiodic microstrip patch antenna miniaturization using. Design, simulation and analysis of a probe feed patch antenna. Almutawa a thesis submitted in partial fulfillment of the requirements for the degree of master of science in electrical engineering department of electrical engineering college of engineering university of south florida. Ansys hfss tutorial simulate and analyze an example of microstrip line drew handler, jerry yang october 20, 2014. It is one of the several commercial tools used for antenna design. By default, the patch is centered at the origin with feed point along the radius and the groundplane on the xy plane at z 0. Firstly, the structures of microstrip antennas in threelayered spherical media fed by l probe are established as similar as the plane case. In the ansoft hfss tutorial 1, a microstrip patch antenna was simulated and the numerical return loss and radiation patterns were shown. It also covers new features in ansys hfss for antenna analysis. The objective is to provide a very thorough introduction to hfss as applied to antenna design, which may be followed stepbystep in. The basics of patch antennas, updated orban microwave.
In this research article proposed antenna bandwidth is improved by2. The basic structure of the microstrip patch antenna is shown in figure 1. Microstrip patch antenna at 28 ghz for 5g applications. The fundamentals of patch antenna design and performance. Probe feed patch antenna probe feed patch antenna 11 to set the name.
Introduction ansys hfss is an industry standard tool for simulating 3d fullwave electromagnetic fields. Logperiodic microstrip patch antenna miniaturization. Design of a rectangular microstrip patch antenna using inset. In this paper a probe feed patch antenna is designed and simulated using the ansoft hfss environment. Analysis of lprobe fedpatch microstrip antennas in a. Microstrip patch antenna with coaxial feed using cst mws part 1. It consists of rectangular substrate and the metal trace layer as shown in fig. Microstrip patch antenna design linkedin slideshare. Example probe feed patch antenna ansoft high frequency structure simulator v10 users guide 5. Create probefed circular microstrip patch antenna matlab. The operation frequency of patch antenna was designed at 2. Hfss, problem with using wave port to feed the dipole patch. The purpose of this tutorial is to further discuss the microstrip patch antenna and to present the experimental results. This video demonstrates how to create the geometry of the dipole antenna.
Ansys hfss with hpc for large finite antenna array design. Getting started with hfss v9 for antenna design october, 2003 this getting started training material is intended for new users of hfss. In the case of a probe fed patch antenna, the total input impedance consists of the probe reactance in series with the patch impedance. Probe feed microstrip patch antenna computer aided design.
The 2x2 patch array antenna is simulated using ansoft hfss. Radiation characteristics of the antenna and different methods for control. Hfss design of circular patch antenna using coaxial feeding. Feed reactance of rectangular microstrip patch antenna. A probefed patch antenna is studied by changing only the dielectric constants of the material such as polyethylene, silicon dioxide, silicon, teflon.
Abstractin this paper, the lprobe fedpatch microstrip antennas in a multilayered spherical media are analyzed based on the method of moments mom. A probe fed patch antenna is studied by changing only the dielectric constants of the material such as polyethylene, silicon dioxide, silicon, teflon. Microstrip patch antenna with coaxial feed using cst mws. Design of a rectangular microstrip patch antenna using. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Patch 2 click the ok button assign a perfect e boundary to the trace to select the trace. The objective is to provide a very thorough introduction to hfss as applied to antenna design, which may be followed stepbystep in hfss with the investment of only a few hours of time. The example will illustrate both the simplicity and power of hfss through construction and simulation of this antenna structure. Antenna projects using hfss electronics electrical projects. Introduction this article introduces the basic concepts of patch antennas. Logperiodic microstrip patch antenna miniaturization using artificial magnetic conductor surfaces by ahmad t. In this paper, we present a new dual band planar antenna. Geometry of patch antenna a patch can also be fed with a probe through ground plane.
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