Dual ushape microstrip patch antenna design for wimax applications. The theory of antenna operation can be seen in the following videos. Oneof the types of antenna is the microstrip patch antenna mpa. As an example, the size must increase to have it work at lower frequencies. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Dec 04, 2012 uhf patch antennas for space antenna development corporation, inc. Meaning of dgs is, in ground plane of patch antenna some. Design of square patch antenna with a notch on fr4 substrate. Cst microwave studio is used to design the metamaterial based rectangular microstrip patch antenna. The second group focused on the design and simulation of patch antennas which are widely used in cell phones today with an emphasis on optimization of a 1. A patch antenna is a narrowband, widebeam antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, such as a printed circuit board, with a continuous metal layer bonded to the opposite side.
The first is the design and parametric analysis of inset fed rectangular microstrip antenna which operates at the central frequency of 6. Microstrip patch antenna has advantages than other antenna is lightweight, inexpensive, easy to fabricate and achieve radiation characteristics with higher return loss. Analysis and design of circular microstrip patch antenna at 5. 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. The first part of the mimo conformal antenna design is the radiation elements.
In the drawing above, blue area is the substrate and brown area represents the top conducting layer which is half of the antenna. Design of microstrip antenna in cst microwave studio. Use of ferrites in designing a patch antenna and its impact on antenna parameters is. The substrate between patch and ground plane plays important role in design it decides the bandwidth as well as size of the microstrip antenna. The design uses microstrip patch antenna as radiation elements. The basics of operation is to generate a magnetic field out of phase with an electric field with a ratio that impedance matches with the air 377 ohms. The following image shows a microstrip or patch antenna. When the antenna is excited, the waves generated within the dielectric undergo reflections and the energyis radiated from the edges of the metal patch,which is very low.
Design of broadband microstrip patch antenna using stack and notch techniques pandey provides a practical guide to designing microstrip and printed antennas, focusing on realworld applications rather than theoretical analysis. This unit will give the basic picture regarding microstrip antenna configurations, methods of analysis and some feeding techniques. For a rectangular microstrip patch antenna, the resonance frequency for any tmmn mode is given by. One type of antennas that fulfills most of the wireless systems requirements is the microstrip antennas. Pattern analysis of the rectangular microstrip patch antenna diva. Microstrip patch antenna design santa clara university. Jun 23, 2008 this is a gui for calculating the design parameters and plotting the radiation characteristics of a rectangular patch antenna. A dual band antenna and a microstrip fed patch antenna, used in the communication lab were also simulated. What is the purpose of a substrate in a microstrip patch antenna. Substrate is a base or container on which microstrip patch metallic sheet antenna is fabricated and it plays important role in microstrip antenna functioning. Deschamps in 1953, but didnt become practical until the 1970s when it was developed further by researchers such as robert e. Design and performance analysis of microstrip array antennas with optimum parameters for xband applications md.
These are waves with frequencies between 300 mhz and 3000 mhz 3ghz. Properties of a basic microstrip patch a microstrip or patch antenna is a lowprofile antenna that has a number of advantages over other antennas. International journal of science, engineering and technology research 2. Design parameters and tradeoffs are presented for microstrip antennas. The length l of the patch radiator is then selected such that it satisfies the condition of resonance. Mar, 2019 substrate is a base or container on which microstrip patch metallic sheet antenna is fabricated and it plays important role in microstrip antenna functioning. 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. The most common type of microstrip antenna is the patch antenna. Fig 2a structure and design parameters of the antenna the geometry and design parameters of a rectangular patch coaxial cable fed antenna are shown. Video lecture on introduction to antenna parameters. Feb 16, 20 many types of antenna have been designed to suit with most devices. Antennas using patches as constitutive elements in an array are also possible. The microstrip antennahas been said to be the most innovative area in the antenna engineering with its lowmaterial cost and easy to fabricate which the process can be made inside universities orresearch institute. 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.
Design and performance analysis of microstrip array antennas. Design and performance analysis of microstrip array. Many types of antenna have been designed to suit with most devices. Design and analysis of triple band rectangular microstrip patch. Suppose if i want to design microstrip antenna for ism band and for lossy tissue how. Pdf parameter design of microstrip patch antenna operating at. These antennas are capable of supporting high data rates to at least 10 watts of transmittedpower. A patch antenna is a narrowband, widebeam antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, such as a printed circuit board, with a continuous metal layer bonded to the opposite side of the substrate which forms a ground plane. How and what performance parameters of microstrip patch antenna. The radiation pattern of microstrip or patch antenna is. The basics of patch antennas, updated orban microwave. The rectangular patch is one of the two most popular microstrip antenna types in wireless design the other being the circular patch.
Different antenna structures have been proposed with the focus of. Microstrip is a type of electrical transmission line which can be fabricated using printed circuit board technology, and is used to convey microwavefrequency signals. It consists of a conducting strip separated from a ground plane by a dielectric layer known as the substrate. Generally, patch antenna has a shape of rectangle, and it can be feed with copper cable or microstrip line in our case. These antennas can be integrated with printed stripline feed networks and active devices. We will discuss later in this work more parameters of the antenna in connection with microstrip patch antenna like radiation pattern, efficiency, quality factor. In order to design a compact microstrip patch antenna, a substrate with a higher dielectric constant patch is one of the two most popular microstrip antenna types in wireless design the other being the circular patch. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2.
According to the standard definition, antenna efficiency is the ratio of the radiated power of the antenna to the input power accepted by the antenna. S21 or s12 represents power coupled from one port to another, a useful parameter for determining coupled power from one antenna to another. 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. 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 substrate in microstrip antennas is principally needed for the mechanical support. The lower and the upper substrate parameters are chosen separately to improve the bandwidth. S11 is known as the return loss, or how much power is reflected from the transmitter to an antenna. There are two main steps in the rectangular microstrip antennas design. Click here to go to our page on circular patch antennas new for september 2018.
Additional benefits of patch antennas is that they are easily fabricated making them cost effective. It is made by etching the antenna pattern into metal trace. Apr, 2020 a microstrip antenna is used to transmit or receive signals in the ultrahigh frequency spectrum. They have everincreasing wide range of new applications in wireless communication systems as handheldmobile devices, base stations, satellite communication systems, and biomedical applications. Design and analysis of microstrip patch antenna arrays. Pdf methods to design microstrip antennas for modern. This is a relatively new area of antenna engineering. If the antenna has a maximum dimension that is not large compared to the wavelength, this region may not exist. The first step is theoretical analysis, and the second step is simulation and optimization. Applications include gps, usaf sgls, nasa sn including. Single fss frequency selective surface substrate is used to increase efficiency.
The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity. The permittivity should be low for large bandwidth but high to make the patch antenna smaller. What is the effect of a substrate in a microstrip antenna. With proper dimensions for the second uslot bandwidth as high as 49. Patch antenna calculator file exchange matlab central. The initial microstrip patch antenna design parameters, patch length l, patch width w. A microstrip antenna is used to transmit or receive signals in the ultrahigh frequency spectrum. The most common type of microstrip antenna is the microstrip patch antenna. Microstrip antenna an overview sciencedirect topics. The parameters that affect the broadband performance of the patch antenna are the slot length and width an d the position of the slot. Method of analysis chapter 2 microstrip patch antenna.
Simply, an antenna is meant to radiate power given at its input, with minimum losses. This is a gui for calculating the design parameters and plotting the radiation characteristics of a rectangular patch antenna. Apr 01, 2017 the substrate between patch and ground plane plays important role in design it decides the bandwidth as well as size of the microstrip antenna. How and what performance parameters of microstrip patch antenna get affected by using dgs. A wideband single layer coaxially fed rectangular microstrip patch antenna with a double uslot on the patch is presented. Antdevco employees have designed andmanufactured spacecraft microstrip patch antennas for many small spacecraft programs.
It is a popular printed resonant antenna for narrowband microwave wireless links that require semihemispherical coverage. Uhf patch antennas for space antenna development corporation, inc. May 20, 2016 this is an introductory lecture on microstrip patch antenna. Chapter 2 microstrip patch antenna microstrip antennas are attractive due to their light weight, conformability and low cost. Where m and n are the modes along l and w for efficient radiation the width w is given by 3 as. A dual band antenna and a microstrip fed patch antenna, used in.
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