The use of a single wideband antenna which covers a wide range. This laboratory experiment provides a handson tutorial for drafting an antenna simple monopole and simulating radiation in the ansys hfss modeling tool. Lowcost dielectric substrate for designing low profile. This antenna is based on the planar rectangle monopole antenna. An inefficient antenna produces a smallamplitude em wave for the same feed power, and converts most of the power into heat. Presentation goals to investigate a single band pifa antenna structures which can be integrated in today mobile phones which have a small available space for antennas inside. Fig 6 design of single patch antenna in hfss simulation results the 2x2 patch array antenna is simulated using ansoft hfss. The parameters such as return loss, vswr and radiation pattern are. Pifa the printed inverted f antenna is like a monopole printed on a pcb, but it has a ground point and feed point along the main resonant structure. Em numerical modeling of a monopole home page for the georgia. Modelling, designing and simulating a monopole antenna in hfss. This antenna exhibits a vertical height of approximately 0. Extending the bandwidth of an elliptical monopole antenna. An003 antenna 434 pcb dipole an003 srd antenna quarterwave dipole antenna design loop antenna differential feed loop antenna monopole pcb antenna text.
Printed rectangular monopole antenna a front view b actual shape however, unlike the planar disc monopole antenna, this configuration has dielectric layer on one side. A metal ground plane ideally of infinite size is used, with respect to which the excitation voltage is. The characteristic of the antenna can be improved by altering the figure of the radiation patch and the ground. Broadband planar monopole antennas semantic scholar. Design aspects of printed monopole antennas for ultrawide.
Pdf comparison of different planar monopole uwb antenna. Design a rhombic antenna to operate at 20mhz when the angle of elevation angle 10o. Uwbomnidirectional microstrip monopole antenna for. In this approachinstead of modifying the antenna geometry a passive network attempts to equalize the impedance mismatch between the source and the antenna load. Simulation of bradband rectangular monopole antenna. Monopole and equivalent model by image theory, we have a dipole drive by a voltage source with amplitude v. The ground or ground plane is considered to be a conductive surface which works as a reflector see effect of ground. Dipole antenna code by matlab for hfss dipole antenna code by matlab for hfss book pdf book idisbn. Design of miniaturized dualband microstrip antenna for. This can bea straight trace inverted f, type trace, meandered trace, circular trace, or a curve withwiggles depending on the antenna type and space constraints. Planar monopole antenna, ultra wide band, hfss, bandwidth, return loss, vswr. Design of an 868 mhz printed sshape monopole antenna.
Alternatively, printed monopole antennas can be seen as a vertical monopole antenna. A quarterwave monopole is a ground plane dependent antenna that must be fed singleended. The vertical, marconi, or monopole antenna is a singleelement antenna usually fed at the bottom with the shield side of its unbalanced transmission line connected to ground. Uwbomnidirectional microstrip monopole antenna for microwave imaging applications nasser ojaroudi, mohammad ojaroudi, and yaser ebazadeh abstractin this paper, a new design of multiresonance monopole antenna for use in microwave imaging systems is presented. Both nearzone and farzone directive gains are considered. Design appropriate impedance matching networks for those antennas. The finite element method based, full wave electromagnetic simulator. This thesis introduces a new technique of impedance matching using lumped circuits passive, lossless for electrically small nonresonant dipolemonopole antennas. Monopole antenna for wifi applications world journal of.
The proposed sshape monopole antenna structure as per equations, normal monopole antennas to work with industrial, scientific and medical ism band of 868 mhz and 915 mhz would be presenting the length sizes according to table 1. Pdf monopole antenna simulation in hfss researchgate. In the antenna design, the proposed antenna is composed of an invertedlshaped 50 microstrip feed line with. Utilize commercial simulation software hfss for antenna performance analysis. The monopole we now turn our attention to a wellknown antenna, the monopole. Widebandwidth antennas represent a more compact alternative to the use of multiple antennas to cover the same bandwidth. A monopole antenna usually consists of a vertical cylindrical wire mounted over the ground plane, whose bandwidth increases with increase in its diameter.
Basic understanding of the antenna we will model one of the most basic antennas so that we can simulate a load, and design a matching network. In reality, we are developing the same current on the arm of the dipole and its image using only a source with amplitude v2. The proposed antenna, which was designed and simulated using the fembased hfss, is based on a 20 mm a 40 mm a 1. Helix similar to the wire monopole, except that it is coiled around a central core usually air making. This paper proposes a small sized, lowcost multiband monopole antenna which can cover the wimax bands and cband.
Starting hfss follow instructions from the hfss stripline laboratorytutorial for any pop ups that may occur. Numerous design approaches are available for achieving wide antenna bandwidth, including an elliptical monopole antenna developed by the authors. The most popular and efficient small antenna types. The dipole antenna is constructed with two thin linear elements that are symmetrically fed at the center by a balanced twowire transmission line. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The driving signal from the transmitter is applied, or for receiving antennas the output signal to the receiver is taken, between the lower end of the monopole and the ground plane. Here, only half of the dipole antenna is needed for operation. Ee2032 simulation of a 4 monopole in ansys hfss short introduction to ansys hfss ansys hfss is a software package to. Design and simulation of crescent monopole antenna for 4g lte. A monopole antenna is one half of a dipole antenna, almost always mounted above some sort of ground plane. These antennas are simulated by using ansoft hfss electromagnetic simulation software. Objectives design several lengths of dipole antennas. Clarify measurements of reflection coefficient of the antenna and its radiation pattern. Design of a uwb planar monopole antenna for breast cancer.
Design and simulation of planar monopole antenna for uwb. Generally people dont think of radiofrequency radiation in terms of discrete. Monopole antenna design using hfss forum for electronics. Explain resonant and nonresonant modes of long wire antenna. Analysis of the effects of rectangular ground plane on.
Design and simulation of planar monopole antenna for uwb applications b. The feeding of the antenna, miniaturization and dualband technology the typical structure of printed monopole antenna is shown in figure2. The planar disc monopole antennas yield very large impedance bandwidth, which can be explained in the following two ways. I have completed the preliminary stage up to my knowledge and i have some doubts about the measurements and report generation. Simulation of hairpin monopole antenna using high frequency. The purpose of this paper is to develop a new structure. Chapter 3, 2nd edition, publishing house of electronics industry, beijing, 2243. Effect of antenna size on gain, bandwidth, and efficiencyl roger f. Comparison of different planar monopole uwb antenna. If we assume othe average beamwidth of rhombic antenna as 10, then design an antenna. An efficient resonant antenna 14 wavelength or longer produces a largeamplitude em wave for a given feed power, and produces little heat. A monopole antenna is a class of radio antenna consisting of a straight rodshaped conductor, often mounted perpendicularly over some type of conductive surface, called a ground plane. Dipole and monopole antenna design university of san diego. A printed monopole antenna can be equated to a cylindrical monopole antenna with large effective diameter.
Design of printed rectangular monopole antenna using hfss it and engineering planet. Monopole antenna is a one half of a dipole antenna. I tried the design of monopole using both lump port and wave port. In this paper, a smallsize lowcost printed monopole antenna for ultrawideband operation is presented. Probe feed patch antenna2 probe feed patch antenna getting started click the microsoft start button, select all programsansofthfss 12hfss 12 or double click on the hfss 12 icon on the windows desktop adding a project and design to insert a design into an open project. Fabricate a single antenna to operate in microwave frequency range.
Wideband blade monopole antenna with sleeved coaxial feed i. The impedance matching network will be placed between the 50. The case of a monopole antenna of length l mounted above an infinite ground plane is shown in figure 1a. Although this kind of loaded antenna will appear to be a quarterwave. Pcb antenna design simulation and fabrication with matlab, hfss monopole antenna simulation, antennas and antenna arrays. A quarter wavelength monopole is one of the easiest antennas to model. Design of printed rectangular monopole antenna using hfss. Hfss has the ability to compute antenna parameters automatically. Rectangular monopole antenna, printed circuit board, ansofthfss.
Comparison of different planar monopole uwb antenna using hfss ria kalra, sukhdeep kaur abstract since the release by the federal communications commission fcc of a bandwidth of 7. The proposed antenna, which was designed and simulated using the fembased hfss, is based. A whip antenna provides exceptional overall performance and stability, has an isotropic pattern, a wide bandwidth, it is cheap and it is easily designed. International journal of pure and applied mathematics. Pdf design of a small printed monopole antenna for. The parameters evaluated were gain, beamwidth and return loss. However, an inductor coil at the base of a monopole adds electrical length, so the physical length of the antenna can be shorter. Harrington 2 june 29, 1959 a theoretical analysis is made of the effect of antenna size on parameters such as gain, bandwidth, and efficiency. Pdf high frequency structure simulator hfss tutorial. Nonetheless, irrespective of the calculated lengths in table 1, the proposed sshape antenna will. Wideband blade monopole antenna with sleeved coaxial feed. We use cookies to make interactions with our website easy and meaningful, to better. Simulation of bradband rectangular monopole antenna ijesi. Thesis broadband impedance matching of antenna radiators.
Effect of antenna size on gain, bandwidth, and efficiency. Comparison of different planar monopole uwb antenna using hfss. The antennas will be fed by a balun balancedunbalanced transformer for balanced excitation. Pdf monopole antenna simulation in hfss find, read and cite all the research you need on researchgate. The antenna must have a ground plane to be efficient, and ideally the ground plane should spread out at least a quarter wavelength, or more, around the feedpoint of the antenna. Introduction in this tutorial, a dipole antenna will be constructed and analyzed using.
97 766 1051 372 1326 1145 1337 1626 973 1602 228 735 1585 140 1562 1264 986 220 238 823 1245 558 580 240 400 1179 120 1356 429 667 581 1007 321 680 1015