The results demonstrated that the use of such a design will achieve high directivity, gain, efficiency, and performance. Microstrip patch antenna design santa clara university. Properties of a basic microstrip patch a microstrip or patch antenna is a lowprofile antenna that has a number of advantages over other antennas. It consists of rectangular substrate and the metal trace layer as shown in fig. The plot shows the gain value at a resonant frequency. Simulation of rectangular microstrip patch antenna open.
As an example, the real and imaginary parts of zin z11 have been shown in the figure below. How to find substrate length and width in designing a. In hfss 10 i would get this quantity in dbi but in hfss11 i dont understand why it doesnt. Now when that happens, the usual microstrip patch antenna analysis comes in. The performance of the designed antenna was analyzed in term of bandwidth, gain, return loss. First, you need to choose the frequency of operation that the antenna finds the application and the type of substrate. Design and simulation of ircular microstrip patch antenna. Design of metamaterial loaded microstrip patch antenna the proposed design is based on rectangle shape. How can i improve the gain of a patch antenna and what is.
Getting negative gain in designing a rectangular patch antenna in. The path gain s 21 between antennas on the chest and at the ear is presented as a function of the position of the antenna on the chest. Hfss, feed point location, microstrip patch antenna, simulation, return loss. Physical and effective lengths of rectangular microstrip. The proposed antenna is done on fr4 frame sensitive substrate with dielectric permittivity. The use of slotted patch reduces the size of antenna and higher. Eshape microstrip patch antenna, hfss high frequency structure simulator version 11 software, wideband. The simulation results show that the gain, directivity and s11 parameter of the antenna with ebg cover are increased at x band 812ghz. The performance parameters was achieved with gain 12 db and beamwidth 40 degrees in eplane and 26 degrees in hplane for patch array antenna. The parameters evaluated were gain, beamwidth and return loss.
In our simulations, fr4 epoxy was used as dielectric material with relative permittivity of 4. Determining input impedance of patch antenna in hfss. Of course, tradeoffs also occurs, so you must be careful. Figure 4 input impedance of simple microstrip patch antenna using hfss. The simulation results of the 2x1 rectangular microstrip antenna array showed a return loss of 7.
This video covers the implementation of a 10 ghz rectangular patch antenna, with an inset feed in ansys hfss. Although to find the peak gain at resonant frequency or any other frequency, following steps should. The coordinate axis is taken at the center of the patch or substrate. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2. The suggested e shaped microstrip patch antenna is fed.
Design and simulation of rectangular microstrip antenna arrays for improved gain performance akaninyene b. It has a advantages in simple design, compact in size and easy in fabrication. The microstrip patch antenna model used for the numerical simulation in ansoft hfss is shown in fig. Shows the geometry of the proposed equal slitted square shape micro strip patch antenna the equally edge slitted square patch antenna simulation results are. The path gain is found by hfss simulations as well as measurements. The main goal of this paper is design a compact microstrip antenna module microstrip patch and fss structure. One of the main disadvantages of mpa which limits its applications is its narrow bandwidth. Microstrip patch antenna using hfss ansys duration.
The best feeding point from the geometry of microstrip patch antenna we can understand that to couple the maximum energy to it the feed is provided beneath the ground directly see fig. Design and simulation of eshape microstrip patch antenna. Udofia1 1deparment of electricalelectronic and computer engineering, university of uyo, uyo, akwa ibom state, nigeria. It also has a wide angle of beam in its radiation pattern. There is a tradeoff between cost versus performance in cho. Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line. High frequency structure simulation hfss software has been used to simulate and find the optimum design and results. The simulation results suggest that the antenna gain is 4. To determine the width w, the microstrip patch antenna calculator was used to provide an initial. First the model of the microstrip patch antenna has to be drawn in hfss. As the microstrip patch antenna consist of a ground a patch and a substrate.
The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. The fabrication of this patch array antenna will be our targeted work. Rectaangular microstrip patch antenna for wireless. This technological trend has focused much effort on the basic concepts. Improving microstrip patch antenna directivity using ebg. For the same, the microstrip patch antenna mpa can be. 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. The performance parameters were achieved with return loss 16. Antenna gain is related to the antenna type, fr4 is lossy material therefore you can not expect large gain from fr4. Design and simulation of rectangular microstrip antenna. Thus as there are two different polarizations for two patches mutual coupling is. Thus the design and simulation of microstrip patch array antenna was successfully designed and analysed using ansoft ansys hfss. You can specify several namevalue pair arguments in any order as name1, value1.
Design and performance evaluation of microstrip antenna. This study contains theoretical analysis of a single element microstrip patch antenna model by using high frequency structural simulator hfss simulation software to support xband applications. In this paper we have discussed and analyzed the performance of microstrip patch antenna with and without using the meta material structure. The return loss of a normal patch antenna designed at the resonant frequency of 2. Substrate, gain, radiation pattern, patch antenna scientific. Microstrip patch antenna has a ground plane on the one 1. The frequency of operation of the patch antenna of figure 1 is determined by the length l.
The center frequency will be approximately given by. The following workshop provide a comprehensive understanding of. Name is the property name and value is the corresponding value. The study of microstrip patch antennas has made great progress in recent years. A single patch antenna on fr4 can produce gain of 35dbi. Analysis and design of circular microstrip patch antenna at 5. Based on the return loss simulation results, the designed antennas. Microstrip patch antenna mpa is widely implemented in different communication systems. Properties not specified retain their default values. Eferences fig7 3d polar plot of patch array antenna from the figure above, the aceived gain was 12.
The 3d fss structure antenna is designed on duriod. 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. In this paper i enhanced the bandwidth of mpa by inserting multiple slots in its ground plane. Micro strip patch antenna, radiation pattern, ansoft hfss high frequency structural simulator and rogers rtduroid 5880. Based on the return loss simulation results, the designed antennas resonated. Design and simulation of ircular microstrip patch antenna ieee. The design procedure started with the design of a single element rmsa. Patch antenna design using hfss ozen engineering and ansys. Now, on the other hand without proper design, when you place any scatteringradiating structure too close to the ground plane e. Design and simulation of microstrip patch antenna array. Introduction microstrip patch antenna is a key building in wireless communication and global positioning system since it was first. Introduction in recent years there is a need for more compact antennas due to rapid decrease in size of personal communication devices. The major problems of the single element microstrip antennas are low gain and narrow bandwidth which limit their wide applications. The return loss, radiation pattern and directivity are studied using hfss software.
The resulting plots for z11 in hfss will show us the correct input impedance of patch antenna. Thus the design and simulation of microstrip rectangular patch antenna was successfully designed and analyzed using ansoft hfss. The basics of patch antennas, updated orban microwave. Patch antenna design using hfss this workshop is intended to show how to simulate and analyze a microstrip patch antenna using ansys hfss. A monopole antenna and a printed invertedf antenna ifa are considered for placement on the chest. Substrate,microstrip patch antenna, ground plane, air box and virtual radiation box. We used hfss high frequency structured simulator software for simulation of antenna and to find out the results. Antenna is a vital component in wireless application systems. Microstrip patch antenna design linkedin slideshare. Design and simulation of a rectangular eshaped microstrip patch. We have different types of substrates such as rogers, fr4 epoxy etc. The formulas we used to calculate the length and width of patch are shown below. In the modern days the development in communication systems engineering requires the development of low profile antennas that are capable of maintaining high performance over a wide spectrum of frequencies.
Design and simulation of patch antenna using hfss software. The dimensions of antenna can be found in the hfss simulation file. The proposed e shaped microstrip patch antenna is simulated via highfrequency structure simulator hfss software and the fr4 substrate is used as the dielectric material having a loss tangent of 0. The antenna was designed and simulated using hfss software. Microstrip patch antenna using hfss linkedin slideshare. Microstrip patch antenna design and simulation vengalam mahendra reg no. I expect to get a gain of antenna at most 10 dbi but when i use results create far fields report rectangular plot etheta db i get about 20 db. Fig 6 design of single patch antenna in hfss simulation results the 2x2 patch array antenna is simulated using ansoft hfss. Simulation and results the proposed antenna was simulated by using hfss high. How do you identify whether to use lumped port or wave port in a microstrip patch antenna.
Does anyone have an idea about the wave port or lumped port in hfss,which should be used especially for microstrip patch antenna in uwb range i. Design and simulation of microstrip patch arrayantennafor. Design simulation and fabrication of microstrip patch antenna. Simulation of microstrip patch antenna in hfss full hd youtube. Microstrip patch antenna array design to improve better. A dual band antenna and a microstrip fed patch antenna, used in. It is being observed that the antenna is start working at a frequency of 2. Hfss simulation of radiation pattern of patch antenna with. Increasing microstrip patch antenna bandwidth by inserting. We present gain characteristics of microstrip patch antennas covered with metamaterial substrate composed of splitring resonators srrs and metallic strip. Design of a rectangular microstrip patch antenna using. The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity. Ansys hfss is the industry leading 3d electromagnetic em simulation tool for high frequency and high speed electronic components including antenna design and placement.
Design and simulation of rectangular microstrip patch. Keywords rectangular microstrip antenna arrays, gain, return loss, ansoft hfss version 15. The project here provides a detailed study of how to design a probefed square microstrip patch antenna using hfss, v11. Simulation results using cst studio showed that high gain 54 % increment and efficiency is increased to 97% have been achieved by. As the name state that there are several cut in rectangle so we take a rectangle with. Simulate and analyze a rectangular patch antenna using ansys hfss, including return loss and 3d radiation fields.
Getting negative gain in designing a rectangular patch antenna in hfss. Gain and directivity enhancement of rectangular microstrip patch. The patch dimensions were calculated using the transmission line model and. Design and simulation of a rectangular eshaped microstrip. Design simulation and fabrication of microstrip patch antenna 351 for the proposed antenna the feed point location for the first patch is 18. This paper presents the design and simulation of rectangular microstrip antenna rmsa arrays for improved gain performance over the single element rectangular microstrip antenna.
Keywordsmicrostrip patch antenna, frequency, gain, beamwidth,hfss,wireless communication. Microstrip patch antenna with slots in ground plane. Figure 5 gain for the simple rectangular patch antenna using hfss. Hi everybody, i run simulation of microstrip antenna in hfss 11. It is inevitable to avoid the study and design of compact antennas that are used in wireless applications. Then different antenna parameters are plotted and briefly explained. The return loss and the various gain plots have been studied along with the radiation patterns. Microstrip patch antenna parameters and experimental setup simulation, fabrication and measurement 65 the effective length of the patch is 2. Design and simulation of rectangular microstrip antenna arrays for. Here well see the steps to simulate a designed antenna in hfss software.
S11 return loss, 2d radiation pattern, impedance bandwidth, 3db beamwidth, gain and other antenna parameters. Aim the aim of the thesis is to design and fabricate an insetfed rectangular microstrip patch antenna and study the effect of antenna dimensions length l, width w and substrate parameters relative dielectric. Gain and bandwidth optimization of a novel microstrip patch antenna. Rectangular microstrip antenna arrays, gain, return loss, ansoft. Microstrip antenna arrays, gain, return loss, ansoft hfss version 15. The dimensions of this antenna are 59 mm and 79 mm.
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