Vsimem is ideal for measuring radar cross sections rcs for any scattering device. Microstrip antenna design with cst my antenna simulations. The frequency range in which the antenna is planed to be be propagating, the size of the. I need a cst expert to design a planar antenna that meets certain specifications to be delivered in 24 hours. Design of circular polarized dual band patch antenna.
Vsim for electromagnetics is fast, powerful fdtd physics simulation and modeling software for electromagnetics. The antenna design consists of a rectangular patch having uslot. Analysis of micro strip patch antenna using coaxial feed. Introduction to antenna and nearfield simulation in cst microwave. Designing for designing of a microstrip patch antenna, we have to select the resonant frequency and a dielectric medium for which antenna is to be designed. I am researching an antenna designed to cover the whole wband 75110 ghz i found in this forum that when we put discrete port with 50 ohm impedance, the resulting z matrix represents the. The antenna is designed by using following equation 1to 8. Design and simulation microstrip patch antenna using cst microwave studio 1.
I want to design a patch antenna b y using cst software but i am facing a problem with. The aspect ratio of means the ratio of the width to length of rectangle of wave port. For your antenna to show strong resonance the port signal should start at zero and after some resonance should tend towards zero. This document was uploaded by user and they confirmed that they have the permission to share it. Select the application or frequency for which the antenna is to be designed.
I could of course determine what the transmission line length is in my actual design, and then simulate this. 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. Cst studio suite 3d em simulation and analysis software. Design simulation and fabrication of microstrip patch antenna. Design and simulation of modified rectangular microstrip patch antenna are done by cst. What is the difference between a waveguide port excitation and a plane wave excitation in cst. Microstrip patch antenna array for lte and mimo applications. This polarization can be either vertical or horizontal depending on the orientation of the patch. The microstrip antenna can also be matched to a transmission line of characteristic impedance z0 by using a quarterwavelength transmission line of characteristic impedance z1 as shown in figure 2. The antenna is operating in lte band ii having frequencies of 1850 mhz1910 mhz which is.
Cst antenna simulation and engineering designchinese. Design of rectangular microstrip patch antenna rmpa using stepped cut at four corners for broadbandmultiband application is presented in this paper. Design simulation and fabrication of microstrip patch antenna 349 the proposed antenna is designed in lte band ii for 4g mimo communication. What is the process involved in the design of a microstrip. The parameters evaluated were gain, beamwidth and return loss. Can we defined a magnetic current in cst using discrete port. This tutorial shows how to set up a waveguide port of a microstrip patch antenna in cst microwave studio 2010. The results should only be used as an estimate for the waveport size. Patch antenna design gareth louis shaw a dissertation submitted to the faculty of engineering and the built environment, university of the witwatersrand, johannesburg, in ful. Design and simulation microstrip patch antenna using cst. Choose appropriate antenna type according to the application. Discrete port gave me a dual frequency microstrip antenna between 1 and 3 ghz, but. The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity. Design of a microstrip patch antenna using cst microwave studio.
Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. Vsimem is an accurate tool that caters to antenna and photonic device design. Design and performance analysis of microstrip patch. The aforementioned antenna is designed to operate in the 5.
Setting up a port for a microstrip transmission line is a bit complicated. Patch antenna calculator file exchange matlab central. Analysis and design of ism band patch antenna array. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2. Microstrip patch antenna design using artificial material. The proposed design printed on fr4 material with a thickness. Abstract microstrip patch antennas have been used extensively in applications requiring lowprofile, mounting structure conforming, and lowcost wireless communications. The performance parameters were achieved with return loss 16. What is the importance of port signals in 1d results of.
Analytical formulas given in the textbooks for example balanis do not work that well at such high frequencies. This video shows how to make a differential port in cst microwave studio. In this paper, a tetra band uslot microstrip patch antenna is designed, optimized and simulated. Aperture coupled patch antenna design methods michael civerolo.
Such artificial material substrate is commonly referred as metasubstrate. Predicted data is shown for input impedance and radiation patterns. Microstrip patch antenna design santa clara university. Patch and ground plane design of microstrip antennas by.
Patch antenna array in use for wifi communications refer to appendix a for the single patch antenna design procedure. John herrmann, zach dyals, and angel arcia abstract the objective of this report is to document the design, analysis, fabrication, and measurement of a directional antenna with a 50. Port signal gives you the incident i1 and reflected signal o1,1 on given port 1 with respect to time. Design, simulation and characterization study of a dual band antenna array ali, muhsin, khawaja, bilal ahmed mahmood on. Stepped cut at four corner technique is used in order to increase the bandwidth and gain of the antenna. Discrete port are similar to plane waves, as they do not require. Electrical engineering, electronics, engineering, pcb layout, telecommunications engineering see more. Cst studio suite is a highperformance 3d em analysis software package for designing, analyzing and optimizing electromagnetic em components and systems electromagnetic field solvers for applications across the em spectrum are contained within a single user interface in cst studio suite.
Cst input impedance of a patch antenna inset fed with. Simulations and tests shows that the antenna is circular polarized and have a. A transmit antenna needs a receiving antenna with the same polarization for optimum operation. The next step then was to design the patch antenna with accurate dimensions so that it would resonate at the. Design of very low losses and high bandwidth rectangular. There are few basic things that must be known before designing an antenna in general such as. 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 design specifications for the antenna are given as below. Do i get the same s11 results using discrete port and waveguide. I think in theory, both must have the same s11 results, but in my simulation i cant.
Microstrip moisture sensor based on microstrip patch antenna. Antenna simulation models used in my researches and projects. I think in theory, both must have the same s11 results, but in my simulation i cant get the same results. Electronic industry press book using commercial electromagnetic simulation software cst computer simulation technology microwave studio were ordinary dipole antenna.
In general microstrip patch antennas are also known as printed antennas. The width of the microstrip patch antenna is given in equation 1. Feed methods antennatransmission line interface are critical for optimum performance. Microstrip patch antennas were chosen as the array elements because of their inherent robustness, high directional gain and narrow bandwidth. Analysis and design of ismband patch antenna array by. Question about simulating antennas cst studio close.
Patch antenna array in order to increase main beam gain, reduce side lobe radiation, and increase directivity, the patch antenna design was expanded to a four element array. Basic patch antenna design although there are many variations on patch antenna design, the basic configuration is shown in figure 1, where l is then length relative to the feedpoint and w is the width. Rtdurroid 5880 is used as a substrate for this microstrip patch array design. Chapter 4 consists of a short introduction to cst microwave studio software. In this paper we discuss the microstrip patch antenna, feeding techniques and phased array antenna with their advantage and. Design, simulation and characterization study of a dual band antenna array. Designed and simulated by cst computer simulation technology.
One other idea i had was just using a discrete port right on the antenna feedpoint, so that i do not have a transmission line to the antenna. Patch antenna with a quarterwavelength matching section. It was decided to design a patch antenna from the theoretical study since it fulfils all the requirements for the antenna. Cst input impedance of a patch antenna inset fed with microstrip i am trying to design a patch antenna for 20ghz. It also has a wide angle of beam in its radiation pattern. Discrete port gave me a dual frequency microstrip antenna between 1 and 3 ghz. This is a gui for calculating the design parameters and plotting the radiation characteristics of a rectangular patch antenna. The aim of this project is to design a microstrip phase array antenna in ads advance design system momentum. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. I have four separate patch antennas do i make a port for each antenna. This is a dual band patch antenna which operates at uplink 6ghz and downlink frequency frequency 4. Fig 6 design of single patch antenna in hfss simulation results the 2x2 patch array antenna is simulated using ansoft hfss.
Is the discrete port in cst an electric or a magnetic exciter. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Conclusion in this paper a rectangular microstrip antenna for c band applications has been proposed and designed using cst microwave studio 2016 software. Cst antenna design electrical engineering electronics. Khandani electrical and computer engineering department, university of waterloo, waterloo, on, canada abstractcurrent wireless systems are oneway similar to walkietalkies, meaning that disjoint time or frequency segments are used to transmit and to receive. For wideband patch antenna design on new cst 2017 version, please watch this. Rectaangular microstrip patch antenna for wireless. Wave guide and discrete port are the two main ports used in cst for the. Introduction to antenna and nearfield simulation in. It is a popular printed resonant antenna for narrowband microwave wireless links that require semihemispherical coverage. What is the difference between a waveguide port excitation. The patch mentioned yields horizontal polarizati on, as shown. Directional patch antenna array design for desktop.
The fundamentals of patch antenna design and performance. In this design, the unit cell is slightly different than the one used in the work of p. The tools used were ansoft ensemble, hfss and hp momentum. The goal is to match the input impedance zin to the transmission line z0. Design and simulation of microstrip phase array antenna.