Journal of computing design of coaxial fed microstrip. Microstrip patch antennas for broadband indoor wireless systems project 11 salman haider. Solvable in ansoft designer planarem mom simulation. Hfss with hpc for large finite antenna array design. Reconfigurable patch antennas with fourpolarization. Aperture coupled microstrip antenna design and analysis. Performance analysis of probefed circularlypolarized moderately. Patch dimension y patch dimension x feed along x feed along y coax inner radius coax outer radius ref. The fundamental structural difference between the microstrip patch and aperture coupled microstrip patch antenna is the feed method used to excite the patch.
Zerothorder resonance patch antenna 5 has negative gain which is not desirable. The fundamentals of patch antenna design and performance. To determine the width w, the microstrip patch antenna calculator was used to provide an initial. All simulations were performed using ansofts hfss v10. Smartphone antenna design or cellular antenna design, mobile phone antenna design, etc is reasonably complicated. Aperture coupled microstrip patch antenna for wifi, wimax. Frequencyreconfigurable microstrip patch antennas with. Hfss example,patch antenna with circular polarization with arabic. Keywords microstrip antenna rectangular patch antenna hfss 14. Rectangular patch antenna for high gain and vertical polarization. The microstrip patch antenna model used for the numerical simulation in ansoft hfss is shown in fig. Design of circular polarized printed patch antenna for bandwidth.
Singlefeed circular polarization microstrip antenna sudhanshu n. Rectangular microstrip patch antenna for global position. Antenna characteristics directivity polarization bandwidth medium linear narrow. In this example we design a circular polarized antenna using hfss,optimization was used to refine the axial ration and s11, download the original file.
A microstirp patch antenna has a low profile and weight along with low fabrication cost. Itsi transactions on electrical and electronics engineering itsiteee. 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. Rectangular microstrip antenna parameter study with hfss. Pdf rectangular patch antenna array design at ghz.
Introduction circular polarizationcp are largely involved in. Dualwideband, dualpolarized shared aperture antenna with. While the microstrip patch antenna uses direct feed in order to excite the patch, the aperture coupled. When the feed point is moved to the shortcircuited end of the slot or inf antenna, the impedance decreases. Introduction this article introduces the basic concepts of patch antennas. The 2x2 patch array antenna is simulated using ansoft hfss. Step by step tutorial of making antenna patch and substrat using ansoft hfss made by group 2 of antenna and propagation class a dept. Polarization reconfigurable patch with perturbations on the patch the structure of the reconfigurable fourpolarization antenna with the perturbations on the patch and its geometrical parameters are plotted in figure 7. A duallayer microstrip patch antenna with stub designed. A microstrip patch antenna is a radiating patch on one side of a dielectric substrate, which. A 2x2 polarization switchable patch antenna array for polarization modulation by pengfei ji a thesis submitted in partial fulfillment of the requirements for the. Linear polarization horizontal or vertical pole is discussed. The array, together with the feeding network is analyzed with hfss software.
Both ring and ushaped slot antenna 6,7 and eshaped patch antenna 8 have less directivity. Directional patch antenna array design for desktop wireless internet abstract to improve desktop wireless internet access, two patch antenna configurations were investigated in order to find an alternative for a dipole antenna, which is commonly used for wifi access. Circular microstrip patch antenna using coaxial feed for s. When it is moved to the slot center or open end of the inf antenna, the impedance. Polarization linear polarization return loss 20 db at.
Microstrip patch antennas for broadband indoor wireless. When the equivalent capacitance values of the varactors are increased. P, india abstract here we made an attempt to maximize the gain of microstrip patch antenna. In this project, ansys hfss is used to develop and simulate a microstrip line feed linearly polarized rectangular microstrip patch antenna for a navigation system gps at 1. The measured parameters satisfy required limits hence making the proposed antenna suitable. Determining input impedance of patch antenna in hfss.
With just 2 solve nodes, hfss will solve 5 simultaneous domains per node, whi. The reconfigurable antenna is composed of a square radiating patch, four varactor diodes, and two lumped capacitors. In this example we design a circular polarized antenna using hfss,optimization was used to refine the axial ration and s11, download the. This leads into the discussion of antenna polarization. Design of kuband hexagonal microstrip patch antenna with linear and circular polarizations kadiyam suresh1. They cite in in the onlinehelp sections on polarization.
I often find myself discussing polarization issues with the ansys aes as it is not a trivial issue. Microstrip patch antenna meets all requirements and various types of microstrip antennas have been designed for use in mobile communication systems. I find total realized gain to be most useful and often compare it to the polarization that i think i have and want in a particular antenna. A simple design of circularlypolarized cp microstrip antennas with frequency agility is described. Hfss modeling are developed to calculate the antenna dimensions, for some given resonant frequency, aspect ratio, dielectric constant and height of substrate.
The slot antenna can be considered as a loaded version of the inf antenna. This thesis focuses on the aperture coupled patch antenna due to the lack of fabrication and tuning documentation. A reconfigurable microstrip patch antenna with polyphase filter for polarization diversity and cross polarization filtering operation is presented in this paper. The polarization or polarisation of electromagnetic em waves or fields is introduced. Introduction with the everincreasing need for mobile communication and the emergence of many systems, it is important to design broadband antennas to cover a wide frequency range.
Rectangular patch antenna array design at ghz frequency using hfss. How to design circular polarized patch antenna in cst. The final geometrical dimensions are designed by hfss software. Circular microstrip patch antenna using coaxial feed for sband application 1shyam sunder sonkar, 2pammi kumari. Conformal microstrip antennas, on the other hand, have a much more limited body of. We use a simple rectangular, half wave long, probefed patch operating in. The methods of feeding the rf power directly to the patch antenna is to make it radiate by using. With a coaxial probe, two orthogonal resonant modes of the square patch antenna are simultaneously excited.
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. Hi, how to know the type of polarization of an antenna in hfss. By tuning the curvatures of the vortex slots, the polarizations can be made equal in amplitude and a good cp circular polarization property is obtained 9. Making antenna patch, substrat using ansoft hfss youtube. This paper describes the design of a dualwideband dual linear polarization shared aperture patch antenna. This research expands the knowledge of the sccma by investigating the use of a cylindrical rectangular microstrip antenna crma mounted on an electrically small radius i. Hfss example,patch antenna with circular polarization. Pdf rectangular patch antenna array design at ghz frequency. A 2x2 polarization switchable patch antenna array for. It will be helpful for those who do not know about it. Directional patch antenna array design for desktop.
How to design circular polarized patch antenna in 1. Antenna is simulated in high frequency structure simulator hfss version. Simulate and analyze a rectangular patch antenna using ansys hfss, including return loss and 3d radiation fields. How can i know the type of polarisarion of an antenna in hfss. Hi, i am writing this post to elaborate on how can we determine the input impedance of patch antenna using deembed option in hfss. The parameters evaluated were gain, beamwidth and return loss. Techniques for analyzing antenna lattice structures. Singlefeed circular polarization microstrip antenna. Can u tell me the steps how to find the co and cross polarisation plots for the patch antenna using hfss and cst. In our approach, a polyphase filter is used to obtain the four 90 phase shift outputs to feed a square microstrip patch antenna. Aperture coupled microstrip antenna design and analysis michael paul civerolo a linearlypolarized aperture coupled patch antenna design is characterized and optimized using hfss antenna simulation software 1. Various antenna parameters are plotted and discussed in following topics. A dual band antenna and a microstrip fed patch antenna, used in. Rectangular patch antenna array design at ghz frequency using.
A nonlinear regression analysis, based on hfss simulations, is carried out in order. Keywords microstrip patch antenna, dual patch, multifunctional, linear polarization, coaxial feed, hfss i. Rectangular patch antenna for high gain and vertical. A duallayer microstrip patch antenna with stub designed by simulated annealing algorithm for circular polarization li guo and zhiqiang yao abstractin this paper, a design method that employs simulated annealing sa algorithm to create stub structure of a duallayer microstrip patch antenna for circular polarization is presented. Microstrip patch antenna array design to improve better. Also the antenna gives nearly 3 db higher gain than that of monopolar circular patch1. Analysis and design of circular microstrip patch antenna at 5. Design and development of reconfigurable microstrip patch. Design of multifunctional microstrip patch antenna for. Techniques for analyzing antenna lattice structures richard remski, matt commens, and john silvestro. The network showed high success rate as the results of hfss ansoft simulation. To improve bandwidth and gain of microstrip antenna several techniques can be used.
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