Jun 01, 2015 design and simulation microstrip patch antenna using cst microwave studio 1. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Microstrip patch antenna design santa clara university. Antenna designing using cst computer simulation technology this video explains the use of cst for rf application to design patch antenna. Antenna projects using hfss electronics electrical projects. Secondly, the microstrip antenna was designed to operate at 100 mhz, but it is resonant at approximately 96 mhz. To accompany the cst studio suite student edition, we have prepared some examples, which are typical of the type of textbook problems you may encounter during your studies of electromagnetic theory or other related courses. Simple dipole antenna to understand the function of the antenna we consider the antenna to be enclosed by a surface volume and radiate in homogenous space free space. Design and simulation microstrip patch antenna using cst microwave studio. It is emphasised to the radiation properties of the antennasthe radiation pattern and polarization purity.
Rectangular patch antennas are notoriously narrowband. Design and simulation microstrip patch antenna using cst microwave studio 1. Triangular patch microstrip antenna design in cst studio. When it is moved to the slot center or open end of the inf antenna, the impedance.
Design and simulation microstrip patch antenna using cst. 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. First, the bandwidth of the patch antenna is very small. Design of a rectangular microstrip patch antenna using inset.
Minimizing the sparameter data means that the optimizer tries to find a. The following figure1 shows the gain pattern of the antenna in the farfield. Cst, microstrip patch antenna, radiation pattern, return loss. Microstrip patch antenna calculator patch antenna formula.
Ill use the terms microstrip antenna and patch antenna interchangeably. The antenna is designed by using following equation 1to 8. The magnetic field will be perpendicular to the whole loop carrying the current. 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. Antennas you can rely on ansys hfss for accurate results regarding the performance of your antennas, both as components and when integrated into an operating environment. In figure 10 below is the am and shortwave loopstick antenna in a sanyo model rp2127 mw sw receiver its old. Following equations or formula are used for this microstrip patch antenna calculator. Covers basic antenna theory including gain, directivity, dipole, monopole, and arrays. This polarization can be either vertical or horizontal depending on the orientation of the patch. The designed antenna has a resonating frequency of 2. Fang microstrip antenna design handbook garg et al title says it all, but a few inaccuracies have been found antenna theory constantine balanis used for antennas i elen 715. The fundamentals of patch antenna design and performance.
For this example, a simple square patch antenna was used and was created directly in cst studio suite. The efficiency of an antenna explains how much an antenna is able to deliver its output effectively with minimum losses in the transmission line. An rf current carrying coil is given a single turn into a loop, can be used as an antenna called as loop antenna. This video shows how to design a wideband patch antenna or monopole antenna in cst from the scratch including simulation results s11. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane. Design of a rectangular patch antenna linkedin slideshare. One of the most frequently used types of microstrip antennas, the patch antenna, is depicted in fig. 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. Design, simulation, and optimization of an irregularly. There are few basic things that must be known before designing an antenna in general such as. The frequency of operation of the patch antenna of figure 1 is determined by the length l. A slot will be placed on the ground plane and feed line will be placed on lower substrate. Pdf design and simulation microstrip patch antenna using cst. This paper shows the design considerations of the proposed antenna as well as the simulated results of the same.
The proposed antenna consists of a microstrip patch with a ushaped slot that is fed by a broadband electromagnetic coupling probe, known as lprobe. It also provides, given a beamwidth, the inner and outer. Itoh, a design of the lowpass filter using merciful with salawat and salam to prophet muhammad s. Individual patch antenna and antenna patch array for wifi communication center for research of engineering and 2 microstrip patch antenna. The optimizer tries to minimize the sparameter data. A metal patch mounted at a ground level with a dielectric material inbetween constitutes a micro strip or patch antenna. Consideration is given on practical design technique, including substrate selection and antenna measurements. The equation 1 below waspermittivity, fringing effect, return loss used to work out the width of the patch. Mavridis research, the miniaturized meander microstrip patch antenna was designed. Antenna simulation models used in my researches and projects. This website is intended to be a source of knowledge for learning about and understanding antennas. It consists of area of metallization supported above a ground plane by a thin dielectric substrate and fed against the ground at an appropriate location.
Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. This method employs ground plane between two substrates. Development of microstrip patch antenna design for sband. The currents through this loop antenna will be in phase.
To design a microstrip patch antenna with the microstrip feed line insetfed work on for. Basic antenna theory and application a major qualifying project report. Transparent microstrip patch antenna has been the main focus of this thesis work. Design and analysis of rectangular microstrip patch antenna using. This antenna does not take any much extra size and can be etched on the same mobile pcb itself. Apr 01, 2020 anyone with zero knowledge of cst can learn antenna design after watching this tutorial series from the beginning to end. In response, constantine balanis has updated his classic text, antenna theory, offering the most recent look at all the necessary topics. Submitted to the faculty of the worcester polytechnic institute in partial fulfillment of the requirements for the degree of bachelor of science by. Depending on the scale of the problem and results desired, you can select from a range of solver technologies and hpc enhancements available as addons.
A transmit antenna needs a receiving antenna with the same polarization for optimum operation. And, there are different theories behind these antennas and different methods behind these. The width of the microstrip patch antenna is given in equation 1. In this study an irregularly shaped microstrip patch antenna was designed, simulated, and optimized for airtoground communication atg applications. New material includes smart antennas and fractal antennas, along with the latest.
Thus, the patch operates as an array of two slots with a freespace separation somewhat less than. The return loss and the various gain plots have been studied along with the radiation patterns. These can be used to simulate antenna radiation patterns, installed performance and coupling in realistic environments. Cross section of a patch antenna in its basic form a half wave long patch operates in what we call the fundamental mode. Electromagnetic theory, cst microwave studio, microstrip patchantenna, stacked patches, sband. Mar 17, 2017 this video explains the use of cst for rf application to design patch antenna. Balanis the discipline of antenna theory has experienced vast technological changes. 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. They are the original type of microstrip antenna described by howell in 1972. This article describes the design, fabrication and testing of micro strip patch antennas operating at 2.
Cst studio suite used to design microstrip patch array. Optimization of sparameters of microstrip patch antenna. The patch mentioned yields horizontal polarizati on, as shown. In this paper, a rectangular microstrip patch antenna is designed using hfss software.
For example if an antenna radiates in all direction. Example of a patch antenna with a body model and without. 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. Even the parasitic radiation of the feeding microstrip network, which can deform the directivity pattern 8.
Design of a rectangular microstrip patch antenna using. Week5lecture 19 microstrip antennas msa designing of microstrip antenna in antenna and wave propagation by. The basic structure of the microstrip patch antenna is shown in figure 1. There are several techniques have been applied to overcome this problem, such as increasing the substrate thickness, introducing parasitic element, that is coplaner and stack configuration, or modifying the patchs shape includes designing an eshaped patch antenna or, a uslot patch antenna. Tutorial on patch antenna design using cst docsity. The basics of patch antennas, updated orban microwave. The gain of these antennas is between the ranges between 8dbi to 20dbi. A patch antenna is a type of radio antenna with a low profile, which can be mounted on a flat surface. The rectangular patch antenna is analyzed, and what is learned here will be applied to understanding pifas planar invertedf antennas.
Design and analysis of microstrip patch antenna arrays. How to design horn antenna in cst full tutorial duration. Antenna downtilt and coverage calculator pasternack the antenna downtilt and coverage calculator aka antenna tilt angle calculator is used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned for optimal signal strength and coverage. Generally, patch antenna has a shape of rectangle, and it can be feed with copper cable. Cst studio suite is an industryleading em simulation tool, with multiple solvers for suitable for a wide range of applications. Designed and simulated by cst computer simulation technology. Anyone with zero knowledge of cst can learn antenna design after watching this tutorial series from the beginning to end. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. Patch antenna design tutorial with cst microwave electronics engineering tutorials.
Dec 28, 2011 this article describes the design, fabrication and testing of micro strip patch antennas operating at 2. The frequency range of operation of loop antenna is around 300mhz to 3ghz. The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. These minima and maxima continuously change side like the phase of the rf signal. Analysis of micro strip patch antenna using coaxial feed. The slot antenna can be considered as a loaded version of the inf antenna. How to find impedance at edge of a microstrip patch in cst. This tutorial is meant to provide the readers a detailed description of the antennas used in communication systems. Simply, an antenna is meant to radiate power given at its input, with minimum losses. I want to design a patch antenna b y using cst software but i am facing a problem with boundaries conditions. Balanis, antenna theory analysis and design, 3rdedition, page.
Radiation characteristics of the antenna and different methods for control. Antenna design antenna modeling software ansys hfss. Optimization of sparameters of microstrip patch antenna in cst. Analysis of micro strip patch antenna using coaxial feed and. The patch antennas are popular for low profile applications at frequencies above 100mhz. 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 most common loop antenna you will encounter is the loopstick antenna in the u. Microstrip antennas the analysis and design of arrays.
Analysis of return loss plot of simulated microstrip patch antenna for wideband patch antenna design on new cst 2017 version, please watch this. The goal is to present a comprehensive tutorial on. In general microstrip patch antennas are also known as printed antennas. In this section, well discuss the microstrip antenna, which is also commonly referred to as the patch antenna. Microstrip patch antenna is used in mobile handset due to simple look, lower cost, small size and light in weight. Click here to go to our page on circular patch antennas new for september 2018. Microstrip antenna design with cst my antenna simulations. 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. This is otherwise called as radiation efficiency factor of the antenna. When the feed point is moved to the shortcircuited end of the slot or inf antenna, the impedance decreases. Tutorial design microstrip patch antenna using cst duration.
These are very low size antennas having low radiation. The patch is created on a doublelayered substrate with an air gap and is placed inside an abs box. The process started with the design of a rectangular patch antenna with the traditional transmission line and cavity methods, followed by a simulation with the finitedifference timedomain method fdtd in conjunction. Deschamps in 1953, but didnt become practical until the 1970s when it was developed further by researchers such as robert e. A new dualband microstrip antenna with ushaped slot in this paper, we present a new dual band planar antenna.