You specify the name of the project when you save it using the filesave or filesave as. Open a previously saved project using the fileopen command. A dielectric resonator antenna problem 12 introduction the sample problem this manual describes how to get started with hfss by guiding you through the setup, solution, and analysis of a dielectric resonator antenna. In this paper we are proposing a cpwfed patch antenna. It consists of patch elements on one side of a dielectric substate and a planar ground on the other side. Pdf high frequency structure simulator hfss tutorial. Hfss is high frequency structure simulator it is high performance full wave electromagnetic field simulator 3d volumetric passive device modelling that takes advantages of familiar microsoft windows graphical user interface. A cpwfed microstrip antenna for wlan application sciencedirect. 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. Otherprghfssdoc references hp high frequency structure simulator users reference hp high frequency structure simulator tutorial. Cpw feed port is similar to the one we define for microstrip antennas with ground. The coplanar waveguide is a planar transmission line.
We keep changing the design of antenna as our motive was to achieve miniature antenna with better results than conventional antennas. Open the em setup window, define the required dielectric as described in earlier labs and do the following additional actions. This page covers cpw coplanar waveguide basics and provide advantages and disadvantages of coplanar waveguide. The antenna cookbook w space radiation boundaries at. Tools options hfss options general tab check use wizards for data input when creating new boundaries check duplicate boundariesmesh operations with geometry click ok. Design and simulation of the broadband unidirectional cpwfed rectangular slot antenna. Using hfss, simulate an airfilled wr90 waveguide shown above. Dk is a very important property for microwave pcb design. The rectangular micro strip patch antenna is analyzed using high frequency structure simulator hfss v 11. Getting started with hfss v9 for antenna design october, 2003 this getting started training material is intended for new users of hfss. Analysis must include first three modes te10, te20, te01 3. Coplanar waveguide cpw fed bowtie antenna using the ansoft hfss design.
It consists of rectangular substrate and the metal trace layer as shown in fig. Cpwfed 60 ghz integrated horn antenna is presented in 22 with a gain of 14. Roy engineering college,durgapur, west bengal, india d bengal engineering and science university,shibpur,west bengal. Techniques for analyzing antenna lattice structures. This page covers cpw coplanar waveguide basics and provide advantages and disadvantages of coplanar waveguide the coplanar waveguide is a planar transmission line. Hfss simulated input impedance of the 7element cpsfed yagi. Analysis and design of circular microstrip patch antenna at 5. Hfss simulation of rectangular wave guide brief theory, concept of wave guide mode. Ec 4th year shivanshu awasthi ec 4th year sarvesh kumar nishad ec 4th year novman asif ec 4th year. Sep 01, 2016 this slide describes design and simulation about the micro strip patch antenna using hfss software. I am beginner for slot dipole antennas and hfss so please help me. Acknowledgements the authors like to acknowledge bengal engineering and science university, shibpur, india for providing necessary support during this research work. Techniques for analyzing antenna lattice structures richard remski, matt commens, and john silvestro. A compact coplanar waveguide fed wideband monopole.
Bi, i have done extensive simulation on hfss, both ansoft and agilent, and the cpw problem has always frustrated me, but. Ec 4th year shivanshu awasthi ec 4th year sarvesh kumar nishad ec 4th year. Currently, i want to research some problem related to onsichip cpwcoplanar wave guide problem. It includes instructions to create, simulate, and analyze a probe feed patch antenna. High frequency structure simulator for 3d electromagenetics hfss is a platform that includes multiple simulation technologies for component or system design. Introduction in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulation software by ansoft. A new coplanar waveguide cpw fed wideband printed slot antenna is presented, and the impedance characteristics of this antenna with different sizes of tapers are discussed. The patch antenna designs are simulated using hfss software. Cpw feed patch antenna for gps applications citeseerx. In reality, it can be smaller than the boundary to accommodate more than one port on one side, to solve antenna problems, or to avoid waveguide modes.
A cpw fed circular microstrip patch antenna with defected. The example will illustrate both the simplicity and power of. To obtain the field patterns, intrinsic impedance and wavelength for the first 4 modes. Hfss waveport simulation for cpw transmission line z0 mismatch so i cant quite figure out what seems to be the problem. The simulated and measured results are in close agreement which validates the. First the model of the microstrip patch antenna has to be drawn in hfss. Cpwfeed, microstrip patch antennas, radiation pattern, return loss. A compact coplanar waveguide fed wideband monopole antenna for rf energy harvesting applications monika mathur1, ankit agrawal1, ghanshyam singh2, and satish k. The use of this technique has resulted in gain enhancement as compared to conventional microstrip antenna of the same size. Rectaangular microstrip patch antenna for wireless. Shanghai jiaotong daxue xuebaojournal of shanghai jiaotong university.
Defining the cpw substrate without the ground at the bottom will require the substrate to be defined differently than what we have done so far. This is an animation from a simulation of a coplanar waveguide cpw done in ansys high frequency structural solver hfss. It is widely used for microwave integrated circuit design. This antenna has 140 mhz bandwidth, return loss at centre frequency has less than 16. Cpw coplanar waveguide basics, advantages,disadvantages. The beauty of this antenna is the use of single patch which make it easy to fabricate consequently cost of antenna becomes cheaper. The antennas are fed by coplanar waveguide cpw line which makes the antennas easily used with mmic and microwave.
I have a cpw transmission line that i am tweaking the dimensions of to try and get 50 ohm characteristic impedance. A cpw fed slot antenna is carried out in this work. Hfss tutorial cpw menu computing button computing scribd. We used hfss high frequency structured simulator software for simulation of antenna and to find out the results. Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line. This slide describes design and simulation about the micro strip patch antenna using hfss software. Open hfss and save the default project by a new name. The antennas are fed by coplanar waveguide cpw line which makes the antennas easily used with mmic and microwave circuits. This video demonstrates the use of several modeling tricks in ansys hfss to create a microstrip design and excite it with a lumped port. Materials used in pcb technology generally have dk from 2 to 10 dk is dimensionless.
The objective is to provide a very thorough introduction to hfss as applied to antenna design, which may be followed stepbystep in hfss with the investment of only a few hours of time. Procedia technology 4 2012 417 a 420 22120173 a 2012 published by elsevier ltd. Thickness of substrate has been minimized to achieve the same. Design and simulation of the broadband unidirectional cpw.
Thus in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulator. The parameters evaluated were gain, beamwidth and return loss. Design and simulation of the broadband unidirectional cpwfed. Ansoft hfss can be used to calculate parameters such as sparameters, resonant frequency, and fields4. This tutorial was intended to introduce the user to the basic commands and. The fundamental parameters of the antenna such as bandwidth, return loss, gain, radiation pattern, and polarization are obtained. Hfss software, which is a fullwave simulation tool, based on the method of. The base hfss offering includes 3d and layout interfaces, 2. The reflection coefficients of the antenna with and without dgs are measured with vna.
In this paper, we tried an antenna which consists of a patch having uslot, surrounded by closely spaced ground conductor and a cpw feed line it is designed in millimeterwave pozar1983 bhartia1991 frequency bands of 40 ghz. A new project is automatically created when hfss is launched. It shows the electric and magnetic vector fields at 10ghz as well as. Coplanar waveguide cpw fed bowtie antenna using the ansoft. Mar 07, 2016 hfss microstrip patch antenna analysis and design 1. P, india abstract here we made an attempt to maximize the gain of microstrip patch antenna. The antenna is cavitybacked with an annularslotfed hemispherical dielectric resonator. A new coplanar waveguide cpwfed wideband printed slot antenna is presented, and the impedance characteristics of this antenna with different sizes of tapers are discussed.
Design and analysis of microstrip antennas for ultrawide band applications a thesis submitted in partial fulfillment of the requirements for the degree of master of. Tutorial session ra2 thursday, april 07, 2005 clearwater, fl. Probe feed patch antenna 2 probe feed patch antenna getting started click the microsoft start button, select all programsansoft hfss 12 hfss 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. 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. The proposed antenna design is compact and suitable at higher frequencies from 40100 ghz. Microstrip patch antenna simulation setup for microstrip fed patch antenna. For transmission line problems, such as microstrip lines or cpw, in theory, the size of the wave port should be as large as the boundary it touches. But now i see the results and they do not look like the results on designer. I used a waveport and defined two modes for the two strips. Ansoft high frequency structure simulator tutorial the dipole antenna april 2004. The parameters of the antenna are simulated and optimized with hfss.
Bhatnagar1 abstractfor energy harvesting applications a new design of a coplanar waveguide cpw fed monopole antenna is presented. Hfss waveport simulation for cpw transmission line z0. Fig 6 design of single patch antenna in hfss simulation results the 2x2 patch array antenna is simulated using ansoft hfss. Project report on antenna design, simulation and fabrication this project report is submitted to vnit in partial fulfillment of the requirements for the degree of bachelor of technology in electronics and communication under the guidance of dr. The antenna was etched on a singlelayer coppercladding substrate, of which the material was fr4 with relative permittivity of 4. Structure of patch antenna design in hfss athe 2x2 patch array antenna design is shown in below figure in 3d model. Im trying to simulate a folded slot antenna using cpw feed and im wondering what is the type of port that i need to use to define it as cpw port. Aug 07, 2017 this is an animation from a simulation of a coplanar waveguide cpw done in ansys high frequency structural solver hfss. How do you design a port in hfss for cpw feed slot antennas. Hfss tutorial starting ansoft hfss click themicrosoft start button,select programs and select the ansofthfss9hfss9 or double click the hfss9 icon on the desktop creating projects.
The effect of tapering angle with the resonant frequency is also observed. Design and analysis of microsrtip square patch antenna under the kind guidance of. Part i covers basic antenna theory including gain, directivity, dipole, monopole, and arrays. Simple communications channel for signal integrity analyses part iv duration. Keysight eesof eda microstrip and cpw power divider design. The imaginary component of complex permittivity is df dissipation factor.
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