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. 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. 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. Various parameters, for example the gain, s parameters, directivity and efficiency of the. Microstrip patch antenna is used in mobile handset due to simple look, lower cost, small size and light in weight. 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. It was invented to allow convenient integration of an antenna and other driving circuitry of a communication system on a common printedcircuit board or a semiconductor chip carver and mink, 1981. This mobile microstrip patch antenna design can also be applied to all the other frequency bands in the similar way as outlined here. Optimization of sparameters of microstrip patch antenna in cst. A finite size ground plane with a thicker substrate is located about 10mm 0. A slot will be placed on the ground plane and feed line will be placed on lower substrate. Microstrip patch antenna calculator patch antenna formula.
Pdf cstpatch antennaexample dushyant sharma academia. Mar 17, 2017 antenna designing using cst computer simulation technology this video explains the use of cst for rf application to design patch antenna. With antenna gain we compare the reception or transmission of a certain antenna in a specific direction with the same. Analysis of micro strip patch antenna using coaxial feed and. Embedded in the same cst user interface, cst ems features a variety of solver module to tackle electrostatics, magnetostatics, current flow and low frequency problems, and can be coupled to other cst studio suite modules for charged particle and multiphysics simulations. The proposed rectangular patch antenna has been devise using glass epoxy substrate fr4 with dielectric constant. This method employs ground plane between two substrates.
The rectangular patch antenna is analyzed, and what is learned here will be applied to understanding pifas planar invertedf antennas. The microstrip patch antenna is a popular printed resonant antenna for narrowband microwave wireless links that require semihemispherical coverage. 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. 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. Microstrip antenna design with cst my antenna simulations. The antenna has been designed and simulated using cst microwave studio 2010. This antenna is often built of printed circuit board. For feeding the microstrip patch antenna, there are different methods for example, feed line method, coaxial.
The antenna is attractive due to its lowprofile conformal design, relatively low cost and very narrow bandwidth. Microstrip square patch antenna using cst by shamsur rahman akash duration. Our sband antenna ism is a high gain left hand circularly polarized 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. Name is the property name and value is the corresponding value. Dec 09, 20 microstrip square patch antenna using cst by shamsur rahman akash duration. Following equations or formula are used for this microstrip patch antenna calculator. A patch antenna is a type of radio antenna with a low profile, which can be mounted on a flat surface. Microstrip square patch antenna using cst by shamsur rahman akash. Patch antenna design using microwave studio 1 what is cst. Designed and simulated by cst computer simulation technology patch. The optimizer tries to minimize the sparameter data. Calculation of the dimension of the patch antenna, substrate, ground plane, effective dielectric constant, impedance etc.
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 with a genetic algorithm. Create microstrip patch antenna matlab mathworks india. In this section, well discuss the microstrip antenna, which is also commonly referred to as the patch antenna. Antenna designing using cst computer simulation technology this video. Design, simulation, and optimization of an irregularly shaped. Designed and simulated by cst computer simulation technology. The frequency of operation of the patch antenna of figure 1 is determined by the length l. The fundamentals of patch antenna design and performance. The dielectric substrate of thickness h having relative permittivity. Sband patch antenna cubesat module cubesat by endurosat. Design and analysis of microstrip patch antenna arrays. There are a a lot of methods for analysis microstrip patch antenna. It is mounted on a small, rectangular, flat surface and consists of two metallic plates placed upon each other. The microstrip antenna is a relatively modern invention.
Design and simulation of microstrip phase array antenna. An antenna radiation pattern or antenna pattern is defined as a mathematical function or a graphical representation of the radiation properties of the antenna as a function of space coordinates. Design and analysis of rectangular microstrip patch antenna using. Microstrip patch antenna design santa clara university. For example, satellite communication requires circularly polarised radiation patterns, which can be realised using either square or circular patch microstrip antenna. A patch antenna is a lowprofile directional radio antenna that is used for indoor locations covering singlefloor offices, stores and small studios. Microstrip antenna an overview sciencedirect topics. Generally, patch antenna has a shape of rectangle, and it can be feed with copper cable. Design and simulation microstrip patch antenna using cst microwave studio. Getting started with cst microwave studio duration. The overall design steps for designing the patch antenna in cst microwave studio involves 1. The performance parameters were achieved with return loss 16. To design a microstrip patch antenna with the microstrip feed line insetfed work on for wifi 2.
Various parameters, for example the sparameters, two dimensional and three dimensional radiation patterns, excitation models, gain, directivity and efficiency of the designed antenna are obtained from ads momentum. Mobile microstrip patch antenna basics and design rf microwave. Patch antenna design tutorial with cst microwave electronic2017. Of course, tradeoffs also occurs, so you must be careful. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. In global positioning satellite gps systems, circularly polarised microstrip antennae are used. Ill use the terms microstrip antenna and patch antenna interchangeably.
Minimizing the sparameter data means that the optimizer tries to find a parameter setting where the. Simple patch antenna design with using cst studio suite youtube. The use of slotted patch reduces the size of antenna and higher bandwidth, which is the area that can be improved with the proposed design. The basics of patch antennas, updated orban microwave. The patch antenna is a good place to start for antenna fundamentals with more coming. Can anyone please provide a tutorial on how to design a triangular.
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. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane. The geometry of micro strip patch antenna is shown in fig. While the antenn a can be 3 d in structure wrapped around an object, for example, the elements are usually flat. 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 e. The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity. Increase of a patch bandwidth is achieved by utilizing a dcp feed, as shown in fig.
Microstrip square patch antenna using cst by shamsur rahman. The center frequency will be approximately given by. Patch antenna design tutorial with cst microwave this is a tutorial series on microstrip patch antenna design with inset feed in cst microwave. Antenna designing using cst computer simulation technology this video explains the use of cst for rf application to design patch antenna. But illustrates sizes and importance of good antenna design why microstrip antennas. Cst beginners tutorial for microwave antenna design youtube. Coax fed patch antenna with waveport at different location this example demonstrates the use of a coaxial probefed rectangular microstrip patch antenna. The antenna design can be simulated and results are optimized using rf and microwave antenna design softwares such as ie3d, ansof, cst etc. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2. 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. Design, simulation, and optimization of an irregularly. On the youtube you can find several tutorials on this topic with these two software.
Design of rectangular microstrip patch antenna ieee. Optimization of sparameters of microstrip patch antenna. A microstrip patch antenna mpa consists of a conducting patch of any planar or nonplanar geometry on one side of a dielectric substrate with a ground plane on other side. Pdf design and simulation microstrip patch antenna using cst.
This video contains microstrip antenna drawing and simulation with using cst studio suite. Note that a planar antenna is not always a patch antenna. Microstrip antennas have high q q 100 is common, which means that they have small bandwidths. In this study an irregularly shaped microstrip patch antenna was designed, simulated, and optimized for airtoground communication atg applications. Design and simulation microstrip patch antenna using cst. Microstrip phase array antenna, circular patch antenna, ads. Now when that happens, the usual microstrip patch antenna analysis comes in. Design of microstrip antenna in cst microwave studio this is the second part of the inset fed patch antenna design tutorial using cst microwave studio. It also provides, given a beamwidth, the inner and outer radii of beams coverage. Rectaangular microstrip patch antenna for wireless. Analysis of micro strip patch antenna using coaxial feed. Analysts finite element wave ports are used to drive the antenna and radiation patterns and feed return loss and input impedance are calculated. It is a popular printed resonant antenna for narrowband microwave wireless links that require semihemispherical coverage.
One plate is larger than the other, which is called ground plane and. Patch is a radiating element and it can be available in different shapes like square,rectangular,circular,triangular etc. Inputting the parameter obtained into the cst microwave studio, draw the substrate, ground plane, patch antenna, gap between. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Properties not specified retain their default values. This rectangular patch is excited using transmission lines of particular length and width. They are the original type of microstrip antenna described by howell in 1972. Cst em studio cst ems is dedicated to the simulation of static and low frequency devices. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. 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 some other common shape. The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. Antenna simulation models used in my researches and projects.
Feed line distributes rf power to different part of antenna. This antenna is often built of printed circuit board material and the substrate makes up the. It also has a wide angle of beam in its radiation pattern. D structure wrapped around a cylinder, for example, it is usually flat and that is why patch antennas are sometimes referred to as planar antennas. Design and simulation of microstrip phase array antenna using ads. This antenna does not take any much extra size and can be etched on the same mobile pcb itself.
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