In this tutorial i will be building a dynamic patch antenna. If the ratio lw is close to unity, the radiation pattern will be symmetric but may not provide a resonable input impedance. It usually consists of a metal patch on top of a grounded dielectric substrate. The frequency range in which the antenna is planed to be be propagating, the size of the antenna, the material, the gain of the antenna and. Finally, it covers the basics and advanced stepbystep antenna design. After completing this tutorial, you will be able to calculate the parameters of an antenna and decide which antenna suits for which type of application and why. Microstrip square patch antenna using cst by shamsur rahman. Analysis and design of rectangular microstrip patch.
With this free edition, you have access to our powerful visualization engine and some of the most advanced solvers of cst studio suite with some restrictions related to the student edition. Electromagnetic field solvers for applications across the em spectrum are contained within a single user interface in cst studio suite. The design and simulation of patch antennas is widely used in mobile cellular phones today, and our emphasis in this work is on optimization of a 2. The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium.
Design of a rectangular patch antenna linkedin slideshare. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. Optimization of sparameters of microstrip patch antenna in cst. Microstrip square patch antenna using cst by shamsur rahman akash. A patch antenna radiates power in certain directions and we say that the antenna has directivity usually expressed in dbi. Modern uwb antennas and equipment where cc and cd are expressed in terms of line width w, substrate thickness d, and relative permittivity. Tutorial on patch antenna design using cst docsity. Click here to go to our page on circular patch antennas new for september 2018. The patch may be in a variety of shapes, but rectangular and circular are the most common.
The return loss and the various gain plots have been studied along with the radiation patterns. The main goal of this paper is design a compact microstrip antenna module microstrip patch and fss structure. The patch antenna is a good place to start for antenna fundamentals with more coming. The project here provides a detailed study of how to design a probefed square microstrip patch antenna using hfss, v11. How to design horn antenna in cst full tutorial duration. Jun 01, 2015 design and simulation microstrip patch antenna using cst microwave studio 1. Tutorial 7 rectangular patch antenna using cst ihab hassoun. The center frequency will be approximately given by. Mar 17, 2017 this video explains the use of cst for rf application to design patch antenna. Aug 14, 2011 this video shows the design of a microstrip patch antenna in cst microwave studio 2010. This tutorial shows how to set up a waveguide port of a microstrip patch antenna in cst microwave studio 2010. Design of a rectangular patch antenna using computer simulation technology cst nik nurul azuin bt nik abdul rahman, id no 2010702499, group. I will discuss the basic principals governing the patch and how it works as well as how to adjust and tune it to meet your specific needs.
The following figure1 shows the gain pattern of the antenna in the farfield. Generally, patch antenna has a shape of rectangle, and it can be feed with copper cable. How can one design bottom feed microstrip antenna using cst. Microstrip patch antenna is a low profile antenna which has low gain and narrow bandwidth. Simulation results using cst studio showed that high gain 54 % increment and efficiency is increased to 97% have been achieved by the proposed antenna module ms and fss. The frequency range in which the antenna is planed to be be propagating, the size of the antenna, the material, the gain of the antenna and the structure of the antenna. The microstrip patch antenna calculator determines the length l and width w of a rectangular microstrip patch antenna for a given resonant frequency or vice versa. Design and simulation microstrip patch antenna using cst.
From start menu select programs cst studio suite 2006 cst. Till now i m getting nothing although i have read the circular patch antenna tutorial provided in the help manual. Cst studio suite is a highperformance 3d em analysis software package for designing, analyzing and optimizing electromagnetic em components and systems. Ecm 521 technical report 2011 design of a rectangular microstrip patch antenna cost. Apr 24, 2017 this paper presents the design of a rectangular microstrip patch antenna to operate at. In general microstrip patch antennas are also known as printed antennas. Cst result of a rectangular patch with truncation for cp figure6. Following equations or formula are used for this microstrip patch antenna calculator.
A brief introduction for designing a patch antenna using cst 1. Typical half wave patches have efficiencies well above 90%. 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 control the polarization, or for convenient layout. The patch is generally made up of a conducting material such as copper or gold and can take any possible shape like rectangular, circular, triangular, elliptical or. Cst studio suite used to design microstrip patch array. Calculation of the dimension of the patch antenna, substrate, ground plane, effective dielectric constant, impedance etc. Patch antenna design tutorial with cst microwave electronics engineering tutorials free download as pdf file. Design of a microstrip patch antenna using cst microwave studio. Cst beginners tutorial for microwave antenna design youtube. Apr 01, 2020 it starts with the basics of cst and then moves onto elementary operations of cst geometry manipulations. But illustrates sizes and importance of good antenna design why microstrip antennas. Absract in this paper, a rectangular microstrip patch antenna is designed.
If the antenna had a 100% radiation efficiency, all directivity would be converted to gain. Setting up a port for a microstrip transmission line is a bit complicated. A metal patch mounted at a ground level with a dielectric material inbetween constitutes a micro strip or patch antenna. Microstrip antenna design with cst my antenna simulations. The antenna is attractive due to its lowprofile conformal design, relatively low cost and very narrow bandwidth. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. This video tutorial shows how to design a microstrip patch antenna in cst software.
The results obtain after the simulation cst software of circularly polarized uslot patch antenna are shown in fig. Patch antenna design tutorial with cst microwave electronics engineering tutorials. Tutorial 7 rectangular patch antenna using cst youtube. Anyone with zero knowledge of cst can learn antenna design after watching this tutorial series from the beginning to end. I searched information for each type of antennas and the methods behind hfss and cst is for getting some basic ideas of this project. Inputting the parameter obtained into the cst microwave studio, draw the. Design and simulation microstrip patch antenna using cst microwave studio. Design of a rectangular microstrip patch antenna using.
I have attached a tutorial to design a probefed patch antenna using cst microwave studio. The directivity of a patch can be estimated quite easily. Design and simulation microstrip patch antenna using cst microwave studio 1. These are very low size antennas having low radiation. Also called patch antennas one of the most useful antennas at microwave frequencies f 1 ghz. The frequency of operation of the patch antenna of figure 1 is determined by the length l.
Cst beginners tutorial for microwave antenna design. Analysis of micro strip patch antenna using coaxial feed and. Resonant frequency of the antenna10ghz relative permittivity of the substrate 2. The goal is to present a comprehensive tutorial on. This video shows how to design a wideband patch antenna or monopole antenna in cst from the scratch including simulation results s11. The microstrip patch antenna is used in a wide range of applications since it is easy to design and fabricate. There are few basic things that must be known before designing an antenna in general such as. In this project, we will use hfss or cst to build structures and simulate for different type of antennas, which are mushroom cell antenna, patch antenna. Fundamental specifications of patch antennas radiation pattern a patch antenna radiates power in certain directions and we say that the antenna has directivity usually expressed in dbi. Microstrip patch antenna design linkedin slideshare. The equation 1 below waspermittivity, fringing effect, return loss used to work out the width of the patch. In this part of the tutorial, we will use the dimension calculated in the first part to design the patch antenna in cst. In this part of the tutorial, we will use the dimension calculated in the first part to design the patch antenna in cst microwave studio.
Tutorial design microstrip patch antenna using cst duration. I need to find the minimum level that the s1,1 db can be reached, but when i use the minoperator in the optimizer,it means. A transmit antenna needs a receiving antenna with the same polarization for optimum operation. Designed and simulated by cst computer simulation technology. This tutorial is meant to provide the readers a detailed description of the antennas used in communication systems. Cst offers accurate, efficient computational solutions for electromagnetic design and analysis. Design of a rectangular patch antenna using computer.
Ee2405a abstract a design of a microstrip rectangular patch antenna is presented in this paper. The width of the microstrip patch antenna is given in equation 1. The cst studio suite student edition introduces you to the world of electromagnetic simulation, making maxwells equations easier to understand than ever. This is a tutorial series on microstrip patch antenna design with inset feed in cst microwave. This is the second part of the inset fed patch antenna design tutorial using cst microwave studio. Microstrip patch antenna design santa clara university. Hfss from ansoft and cst microwave studio are very popular computer softwares that are used for antenna models design. This is different from rc cams goof proof patch, which is also an excellent antenna. Readers can visit the first part or the third part below1st part patch antenna design with cst microwave calculation of dimensions 3rd part inset fed patch antenna simulation and result. The patch antennas are popular for low profile applications at frequencies above 100mhz. Recently, we presented a variant of the shorted microstrip patch antenna that improved the efficiency of the small antenna, whilst not compromising the size advantages of the shorted patch. This antenna does not take any much extra size and can be etched on the same mobile pcb itself. For wideband patch antenna design on new cst 2017 version, please watch this.
For this example, a simple square patch antenna was used and was created directly in cst studio suite. To understand the basic design equations of microstrip patch antenna, watch the video available on the link. This polarization can be either vertical or horizontal depending on the orientation of the patch. Microstrip square patch antenna using cst by shamsur. The direction of the maximum gain of the antenna is above the patch ie, in the direction of theta, while minor lobes are on the opposite side. The antennas are simulated using cst mws and manufactured using ro4003h view. The patch is created on a doublelayered substrate with an air gap and is placed inside an abs box.
It starts with the basics of cst and then moves onto elementary operations of cst geometry manipulations. The optimizer tries to minimize the sparameter data. The objective of this tutorial is to simulate a microstrip patch antenna resonating at a frequency of 7. The presented transmitting and receiving patch antennas are designed with 1\times2 array. Hi guys, i am trying to feed a microstrip patch antenna with a coaxial probe feed. Microstrip patch antenna calculator patch antenna formula. Inputting the parameter obtained into the cst microwave studio, draw the substrate, ground plane, patch antenna, gap between the. Analysis of micro strip patch antenna using coaxial feed. Tutorial 8 circular patch antenna with sma connector using.
Design of microstrip antenna in cst microwave studio. The len gth, l, of the substrate can be approximated by. The fundamentals of patch antenna design and performance. Analysis and design of rectangular microstrip patch antenna at 2. Microstrip patch antenna is used in mobile handset due to simple look, lower cost, small size and light in weight. Ogunlade michael adegoke, ismael saad eltoum department of electronics engineering. Before building antennas, people can use these softwares to. Antenna simulation models used in my researches and projects. In this paper, we introduce dualband micro strip patch antenna design for wimax and wifi implementation by mean of 3. Fast patch ibcrazys easy diy patch antenna rc groups.
Due to its planar configuration and ease of integration with microstrip technology, the microstrip patch antenna has been heavily studied and is often used as elements for an array. A comparative analysis of a circularly polarized microstrip. Patch antenna design tutorial with cst microwave electronics. This website is intended to be a source of knowledge for learning about and understanding antennas. Cst offers a wide range of em simulation software to address design challenges across the electromagnetic spectrum, from static and low frequency to microwave and rf, for a range of. The antenna is designed by using following equation 1to 8. How to find impedance at edge of a microstrip patch in cst.
I am trying to simulate the s11 parameter of the patch antenna but i do not know how to model the coaxial feed which is connected underneath the patch since i need to define a waveguide port for it. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. The overall design steps for designing the patch antenna in cst microwave studio involves 1. Hi, i am currently working on a project which i need to design a probefed type circular patch antenna using cst mws please see the attachment. Subject terms microstrip patch antenna, npsat1, narrowband, low power satellite antennas, elliptical patch. Deschamps in 1953, but didnt become practical until the 1970s when it was developed further by researchers such as robert e. Tutorial on cst waveguide antenna radio free 30day. It is selfexplanatory and provides stepbystep procedure to model.
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