Singlefeed circular polarization microstrip antenna sudhanshu n. Various antenna parameters are plotted and discussed in following topics. This thesis focuses on the aperture coupled patch antenna due to the lack of fabrication and tuning documentation. Rectangular patch antenna array design at ghz frequency using. Journal of computing design of coaxial fed microstrip. This paper describes the design of a dualwideband dual linear polarization shared aperture patch antenna. 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. Design of multifunctional microstrip patch antenna for. Pdf rectangular patch antenna array design at ghz. When it is moved to the slot center or open end of the inf antenna, the impedance.
A microstirp patch antenna has a low profile and weight along with low fabrication cost. In our approach, a polyphase filter is used to obtain the four 90 phase shift outputs to feed a square microstrip patch antenna. A duallayer microstrip patch antenna with stub designed. How can i know the type of polarisarion of an antenna in hfss. Both ring and ushaped slot antenna 6,7 and eshaped patch antenna 8 have less directivity. Hfss modeling are developed to calculate the antenna dimensions, for some given resonant frequency, aspect ratio, dielectric constant and height of substrate. Simulate and analyze a rectangular patch antenna using ansys hfss, including return loss and 3d radiation fields. A microstrip patch antenna is a radiating patch on one side of a dielectric substrate, which. Patch dimension y patch dimension x feed along x feed along y coax inner radius coax outer radius ref.
Introduction circular polarizationcp are largely involved in. It will be helpful for those who do not know about it. Performance analysis of probefed circularlypolarized moderately. Making antenna patch, substrat using ansoft hfss youtube.
Microstrip patch antennas for broadband indoor wireless. To improve bandwidth and gain of microstrip antenna several techniques can be used. Microstrip patch antenna meets all requirements and various types of microstrip antennas have been designed for use in mobile communication systems. Techniques for analyzing antenna lattice structures. Aperture coupled microstrip antenna design and analysis. Polarization linear polarization return loss 20 db at. A reconfigurable microstrip patch antenna with polyphase filter for polarization diversity and cross polarization filtering operation is presented in this paper. Design of circular polarized printed patch antenna for bandwidth. The measured parameters satisfy required limits hence making the proposed antenna suitable.
The 2x2 patch array antenna is simulated using ansoft hfss. Techniques for analyzing antenna lattice structures richard remski, matt commens, and john silvestro. Keywords microstrip antenna rectangular patch antenna hfss 14. Circular microstrip patch antenna using coaxial feed for sband application 1shyam sunder sonkar, 2pammi kumari. Aperture coupled microstrip patch antenna for wifi, wimax. Smartphone antenna design or cellular antenna design, mobile phone antenna design, etc is reasonably complicated. 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. Conformal microstrip antennas, on the other hand, have a much more limited body of. A 2x2 polarization switchable patch antenna array for. Analysis and design of circular microstrip patch antenna at 5. This leads into the discussion of antenna polarization.
They cite in in the onlinehelp sections on polarization. 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. When the equivalent capacitance values of the varactors are increased. The polarization or polarisation of electromagnetic em waves or fields is introduced. A nonlinear regression analysis, based on hfss simulations, is carried out in order.
The microstrip patch antenna model used for the numerical simulation in ansoft hfss is shown in fig. Design of kuband hexagonal microstrip patch antenna with linear and circular polarizations kadiyam suresh1. The fundamental structural difference between the microstrip patch and aperture coupled microstrip patch antenna is the feed method used to excite the patch. A simple design of circularlypolarized cp microstrip antennas with frequency agility is described. With just 2 solve nodes, hfss will solve 5 simultaneous domains per node, whi. Hfss example,patch antenna with circular polarization with arabic. Design and development of reconfigurable microstrip patch. Linear polarization horizontal or vertical pole is discussed. Singlefeed circular polarization microstrip antenna. Antenna is simulated in high frequency structure simulator hfss version. Can u tell me the steps how to find the co and cross polarisation plots for the patch antenna using hfss and cst. The methods of feeding the rf power directly to the patch antenna is to make it radiate by using. Microstrip patch antenna array design to improve better. We use a simple rectangular, half wave long, probefed patch operating in.
Rectangular patch antenna array design at ghz frequency using hfss. Reconfigurable patch antennas with fourpolarization. Itsi transactions on electrical and electronics engineering itsiteee. 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 slot antenna can be considered as a loaded version of the inf antenna.
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. Introduction this article introduces the basic concepts of patch antennas. Rectangular microstrip patch antenna for global position. Hfss example,patch antenna with circular polarization. Determining input impedance of patch antenna in hfss. Pdf rectangular patch antenna array design at ghz frequency. I often find myself discussing polarization issues with the ansys aes as it is not a trivial issue. Rectangular patch antenna for high gain and vertical polarization. P, india abstract here we made an attempt to maximize the gain of 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. Hi, i am writing this post to elaborate on how can we determine the input impedance of patch antenna using deembed option in hfss. Microstrip patch antennas for broadband indoor wireless systems project 11 salman haider. Rectangular microstrip antenna parameter study with hfss. How to design circular polarized patch antenna in 1. The final geometrical dimensions are designed by hfss software. Zerothorder resonance patch antenna 5 has negative gain which is not desirable. When the feed point is moved to the shortcircuited end of the slot or inf antenna, the impedance decreases. Solvable in ansoft designer planarem mom simulation.
Dualwideband, dualpolarized shared aperture antenna with. The fundamentals of patch antenna design and performance. 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. The parameters evaluated were gain, beamwidth and return loss. The network showed high success rate as the results of hfss ansoft simulation. With a coaxial probe, two orthogonal resonant modes of the square patch antenna are simultaneously excited. Directional patch antenna array design for desktop. 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. To determine the width w, the microstrip patch antenna calculator was used to provide an initial.
The reconfigurable antenna is composed of a square radiating patch, four varactor diodes, and two lumped capacitors. 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. All simulations were performed using ansofts hfss v10. The array, together with the feeding network is analyzed with hfss software. A dual band antenna and a microstrip fed patch antenna, used in.
Frequencyreconfigurable microstrip patch antennas with. Hi, how to know the type of polarization of an antenna in hfss. 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 2x2 polarization switchable patch antenna array for polarization modulation by pengfei ji a thesis submitted in partial fulfillment of the requirements for the. 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.
How to design circular polarized patch antenna in cst. Hfss with hpc for large finite antenna array design. 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. Rhcp and lhcp left and right hand circular polarizations are described.
532 952 1240 906 467 14 1343 73 785 1085 1223 252 765 461 1301 196 794 477 1613 261 743 113 188 78 1331 650 189 1090 664 986 1355 966