Antenna tutorial antenna function types testing basics. This antenna tutorial covers antenna functions, antenna terms, antenna types, antenna gains, antenna gains vs effective area, radiation pattern, near field and far field region and testing methods. The dimensions of antenna can be found in the hfss simulation file. Thus the design and simulation of microstrip rectangular patch antenna was successfully designed and analyzed using ansoft hfss. To design the rectangular patch width of the antenna is given by. It also covers antenna terms gain, squint, bore sight, polarization, elliptical polarization, circular polarization, linear polarization, beam width. To summarize the rectangular microstrip antenna tutorial content at this point. This paper presents the design of a rectangular microstrip patch antenna to operate at frequency range of 2 ghz to 2. Analysis and design of rectangular microstrip patch antenna at 2.
Width that you calculated for the patch draw primitive rectangle, draw a random rectangle this will be your feedline antenna o double click the new rectangle and define its points. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. As such, this page gives a general idea of how the parameters affect performance, in order to understand the design process. The microstrip patch antenna calculator determines the length l and width w of a rectangular microstrip patch antenna for a given resonant frequency or vice versa. Microstrip patch antenna is used in mobile handset due to simple look, lower cost, small size and light in weight. Richards, theory and experiment on microstrip antennas, ieee trans. The parameters evaluated were gain, beamwidth and return loss.
Antenna arrays will be examined later in the series. Aug 07, 2014 a microstrip or patch antenna is a lowprofile antenna that has a number of advantages over other antennas. A metal patch mounted at a ground level with a dielectric material inbetween constitutes a micro strip or patch antenna. Ansys ansys electronics desktop tutorial antenna tutorial download guide microstrip microstrip patch antenna patch rectangular microstrip patch antenna step by step guide for antenna tutorial edit microstrip is a type of electrical transmission line which can be fabricated using printed circuit board technology, and is used to convey microwave. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Patch antenna phased array a patch antenna array, including full sparameter matrix calculation and superposition of farfield results according to a circuit calculation. 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. Workshop rectangular patch antenna introduction to ansys hfss. The resonant input resistance at the edge of the microstrip conductor is generally greater than the feedline characteristic impedance and requires an impedance. In this case, each vector starts at the origin and lies along the specified points on the x, y, and zaxes. These are very low size antennas having low radiation. The performance parameters were achieved with return loss 16. Design of a rectangular patch antenna using computer simulation technology cst nik nurul azuin bt nik abdul rahman, id no 2010702499, group.
Deschamps in 1953, but didnt become practical until the 1970s when it was developed further by researchers such as robert e. Operational parameters and principles have been established. The fundamentals of patch antenna design and performance. The patch antennas are popular for low profile applications at frequencies. Patch antennas are low cost, have a low profile and are easily fabricated. The use of slotted patch reduces the size of antenna and higher. Design of a rectangular microstrip patch antenna using. Alternate feed methods a common variation in patch antenna design is the location and routing of the feed, to obtain a desired feedpoint impedance, to. This multipart tutorial explores the radiation properties of rectangular microstrip antennasspecifically, the radiation method, coupling of the feed structure to the microstrip radiating element or elements in the case of array structures, and the simple transmissionline. First, the length of the patch l controls the resonant frequency as seen here. Analysis and design of circular microstrip patch antenna at 5.
Microstrip or patch antennas are becoming increasingly useful because they can be printed directly onto a circuit board. Pattern analysis of the rectangular microstrip patch antenna. The rectangular patch excited in its fundamental mode has a maximum. Design of a rectangular microstrip patch antenna using inset.
Design and simulation microstrip patch antenna using cst. Generally, patch antenna has a shape of rectangle, and it can be feed with copper cable. P, india abstract here we made an attempt to maximize the gain of microstrip patch antenna. Jaswinder kaur, rajesh khanna coaxial fed rectangular microstrip patch antenna for 5. Analysis and design of rectangular microstrip patch antenna. As you did in the first tutorial lesson, you will use a wizard in this project to build the geometry of a rectangular patch antenna. The antenna is attractive due to its lowprofile conformal design, relatively low cost, and very narrow bandwidth. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane. The objective of this tutorial is to simulate a microstrip patch antenna resonating at a frequency of 7. Mri lp birdcage a mri lowpass birdcage including a virtual family body model and sar calculation. The rectangular patch antenna is designed so that it can operate at the resonance frequency.
First the model of the microstrip patch antenna has to be drawn in hfss. The distance between the patch and the ground plane the. For rectangular microstrip antenna, the width w and the length l depends on the resonant frequency. The 2x2 patch array antenna is simulated using ansoft hfss. The patch antenna is a good place to start for antenna fundamentals with more coming. Cst simulation software is userfriendly and enables us to choose the most appropriate method for. It consists of rectangular substrate and the metal trace layer as shown in fig. Simulation of rectangular microstrip antenna by integrating matlab in visual basic diyala journal of engineering sciences, vol. It is vital to ensure that the patch antenna is designed in such a manner that it resonates at the desired frequency. Ee2405a abstract a design of a microstrip rectangular patch antenna is presented in this paper.
Mar 17, 2017 cst offers accurate, efficient computational solutions for electromagnetic design and analysis. Thus in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulator. The rectangular patch antenna is analyzed, and what is learned here will be. This model uses an inset feeding strategy that does not need any additional matching parts. Pdf rectangular patch antenna array design at ghz. We use the cavity model to explain the operation of the patch antenna. Design of a rectangular patch antenna using computer. For rectangular microstrip patch antenna design, this paper got a gain of 6.
Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line. Click on the probefed patch wizard button of the wizard toolbar or select the menu item tools antenna wizards probefed patch antenna. This antenna does not take any much extra size and can be etched on the same mobile pcb itself. Pdf workshop rectangular patch antenna introduction to. Experimental study of stacked rectangular microstrip antenna. This antenna tutorial covers antenna functions,antenna terms,antenna types,antenna gains,antenna gains vs effective area,radiation pattern, near field and far field region and testing methods. Microstrip patch antenna design santa clara university. Rectangular patch antenna introduction to ansys hfss. Regarding the circular patch antenna, of radius a, the resonant frequency can be calculated using the following formula 7. Coupling of power to the microstrip patch antenna can be done by probe feeding. Rectangular microstrip patch antenna stream of knowledge. In this paper, we presented the design of a rectangular patch antenna covering the 2ghz.
Microstrip or patch antennas are becoming increasingly useful because they can. The basics of patch antennas, updated orban microwave. The basic principles are illustrated here for a rectangular patch, but the principles apply similarly for other patch shapes. Usually, the patch or microstrip is choosen to be square, circular or rectangular in. Pdf the rectangular microstrip patch antenna is explored from theoretical and practical perspectives. The example will illustrate both the simplicity and power of. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board.
Introduction this article introduces the basic concepts of patch antennas. Threeelement vectors of cartesian coordinates in meters. Microstrip antennas are becoming very widespread within the mobile phone market. International journal of engineering trends and technology. This multipart tutorial explores the radiation properties of rectangular microstrip antennasspecifically, the radiation method, coupling of the feed structure to the microstrip radiating element or elements in the case of array structures, and the simple transmissionline model utilized for design and performance estimates. This multipart tutorial explores the radiation properties of rectangular microstrip antennasspecifically, the radiation method, coupling of the. Following equations or formula are used for this microstrip patch antenna calculator.
As shown in the design window of the visual basic program in figure 1. Click here to go to our page on circular patch antennas new for september 2018. Rectangular, singlelayer, coaxfed patch antennas are used as array elements for the specific purpose of tracking cell phones operating in the pcs band inside a given building. The fringing fields around the periphery are taken care of by extending the patch. All of the parameters in a rectangular patch antenna design l, w, h, permittivity control the properties of the antenna. It is worth to mention that, the rectangular patch width w has a minor effect on the resonant frequency and radiation pattern of the rectangular patch antenna 2. Analysis and design of rectangular microstrip patch. Properties not specified retain their default values. A patch antenna is a type of radio antenna with a low profile, which can be mounted on a flat surface.
This is a video tutorial on how to design a rectangular patch antenna using ansoft hfss. Cst offers accurate, efficient computational solutions for electromagnetic design and analysis. The objective is to provide a very thorough introduction to hfss as applied to antenna design, which may be followed stepbystep in. Microstrip patch antenna calculator patch antenna formula. Rectangular microstrip antenna a, and its side view b because of the fringing effects, electrically the patch of the microstrip antenna looks greater than its physical dimensions. We use a simple rectangular, half wave long, probefed patch operating in. The project here provides a detailed study of how to design a probefed square microstrip patch antenna using hfss, v11. It has been shown that this design of the rectangular patch antenna produces a bandwidth of approximately 2% with a stable radiation pattern within the frequency range. If the ratio lw is close to unity, the radiation pattern will be symmetric but may not provide a resonable input impedance. We use a simple rectangular, half wave long, probefed patch operating in its fundamental mode as an example. Alternate feed methods a common variation in patch antenna design is the location and routing of the feed, to obtain a desired feedpoint impedance, to control the polarization, or for convenient layout. Ogunlade michael adegoke, ismael saad eltoum department of electronics engineering. The microstrip patch antenna is used in a wide range of applications because it is easy to design and fabricate.
A brief tutorial on microstrip antennas part 1 microwaves. You can specify several namevalue pair arguments in any order as name1, value1. Getting started with hfss v9 for antenna design october, 2003 this getting started training material is intended for new users of hfss. It also covers antenna terms gain,squint,bore sight,polarization,elliptical polarization,circular polarization, linear polarization,beam width,gt,cross polarization,sensitivity,efficiency,directivity etc. Picking up from where part 1 left off, this article explores the singleelement, rectangular microstrip antenna. Rectangular microstrip patch antenna with designer. Absract in this paper, a rectangular microstrip patch antenna is designed. The patch antennas are popular for low profile applications at frequencies above 100mhz.
Cst simulation software is userfriendly and enables us to ch. Tweak the values of the length and width of your patch antenna as to better match it at 10 ghz you should have a minimum at approximately 10ghz and an swr of no worse than. Experimental study of stacked rectangular microstrip. But illustrates sizes and importance of good antenna design why microstrip antennas. The procedure for the design of a singleelement, rectangular microstrip antenna is summarized in table 1. Design rectangular patch antenna using hfss part 1 youtube. Rectaangular microstrip patch antenna for wireless. Name is the property name and value is the corresponding value.
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