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