em: talk - HFSS Tutorial 1: Microstrip Patch Antenna A patch antenna is a miniature, surface-mountable antenna. Printed antennae. Inputs Dielectric ConstantVelocity. For example, if you wish to input "25000000", just type "25M" instead. Use the patchMicrostripTriangular object to create a triangular microstrip patch antenna. The characteristic impedance (Z o) of coplanar waveguide with ground or microstrip lines with signal side ground plane can be calculated using the active calculator or the equations at the bottom of the page. Coaxial Cable Impedance Calculator. The microstrip antennas can be excited either by coaxialThe 2-port EM does have valid shunt path data flowing to the grounded reference node. The patch without the feeding network was simulated in Ansoft HFSS to adjust W for resonance at 2. Always perform a Solve Ports Only solution to ensure the waveport is correct. FR-4 sheet is a double-sided copper-clad PCB sheet made of epoxy resin and glass cloth. Using the microstrip line calculator, a width of 1. This work suggests a new form of dual-band patch antenna for radio frequency identification applications (RFID) in the UHF band and the microwave band. 1. The substrate parameters (ε r and h) and the frequency of interest are required. Microstrip Patch Antenna HFSSv10 ( download simulation file) The microstrip patch antenna is a popular printed resonant antenna for narrow-band microwave wireless links. But here is the funny part. 3mm (100Ohm). Three-element vector of Cartesian coordinates in meters. By understanding the microstrip transmission line, designers can. To determine the width (W), the microstrip patch antenna calculator was used to provide an initial starting point. 45GHz. Recent advancements in communication systems require a high possible data rate and high gain to overcome the path losses. The calculation of the length of the first dipole was carried out based on the lower operating frequency than 1. 4mm thick FR-4 (lossy)substrate with relative permittivity 4. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo). Four types of antennas were simulated using Computer Simulation Technology (CST) software. An arbitrarily shaped microstrip patch is illustrated in Figure 5. In the case of the substrate, its dimensions are 5. Microstrip Patch Antenna Calculator This tool calculates the dimensions of the microstrip patch antenna given the desired operating frequency. 47 mm is needed to realize a 50 Ω with a 180 degree phase delay at 5. Crosstalk occurs when a signal "jumps" from one trace to another, a phenomenon that is unintentional and often unwanted. A 50 Ohm microstrip transmission line is matched to a patch antenna (impedance typically 200 Ohms or more) via a quarter-wavelength microstrip transmission line with the characteristic impedance chosen to match the load. 8x4. TheThe geometry of the designed microstripline feed microstrip patch antenna is as shown in fig. 29 db, return loss at 13. Feeding is extremely important with the patch antenna, and it contributes to bandwidth, crosspolarization levels, and ripple. When in doubt, use 1 for copper, . the calculator for microstrip line in emtalk asks for "elctrical length in degrees" and i am not able to calculate. 5 GHz and calculate its resonant frequency. Learn how to design microstrip and CPW power dividers using Keysight EEsof EDA tools in this technical overview. It is intended only as a very crude estimate, as I. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. Microstrip patch antennas (MPAs) are rapidly gaining more attention due to the proliferation of communication devices and systems with frequencies becoming more suitable for the size and performance of this type of. 254) mm is. Recently, with the development of the multilayer printed circuit board (MPCB) technology, the microstrip antennas can be designed and fabricated from one-dimensional (1D) to 2D and even 3D structures. Be sure of which one you finally decide to use. 525 GHz. Discover (and save!) your own Pins on PinterestA new technique is presented for designing microstrip patch antennas with very good input impedance matching. My calculation gave me that you need to place your feed at about 12. But, for a quick check, I suggest you go through the available online. 6-mm-thick substrate (ε r = 2. 1. The patchMicrostrip object is a microstrip patch antenna. Enter values for W and L for a microstrip line to determine its Zo and Electrical Length. I. They are mostly used at microwave frequencies. 45 GHz Microstrip Patch Antenna Using CSTThe patch antenna calculator linkMicrostrip line calculator li. A microstrip is a type of transmission line in which a strip of a conducting material like copper is mounted on a dielectric material and routed to a ground plane. 4. 45 for gold. 8 mm 2 and is assigned a PEC boundary condition. 4 GHz which is applicable to. Description. A circular shape partial ground plane is used with an elliptical notch just below the feed line. High Integrate Broad-Band Microstrip Antenna Array Using Multilayer Printed Circuit Board (MPCB) Technology. This calculator is designed to calculate the characteristic impedance of an edge-coupled microstrip. em: talk - Company Info. No need to download an excel sheet to do your noise figure calculations!The dimensions of the patch is 4. Low power handling. 8 GHz, which. Abstract. I would like to design microstrip patch antenna. 5 mm thick substrate with εr = 4. 3. when i insert the microstrip in patch. For microstrip patch half wavelength long, the voltage distribution is maximum at the ends, with zero at centre. 46 GHz rectangular patch antennas printed on low-cost fiberglass substrates (FR-4), mounted on a ground plane and fed by a microstrip line. d = Trace Separation. Any book for microstrip antennas should have the formulas you need to find the location of the feed point, to obtain precisely 50Ohm input impedance. In this measurement, a voltage source is used to excite Port 1 and the received signal at. INPUT DATA. 4GHz and 12GHz using HFSS simulator software for various WLN (Wireless Local Area Network. An arbitrarily shaped microstrip patch antennaType of antenna: Rectangular Microstrip Patch antenna Resonance frequency: 2. 5 GHz and 17 GHz within C and Ku bands, respectively. The substrate has a dielectric constant εr. Legal. Snell's law applied to the interface of a RHM/LHM. The results should only be used as an estimate for the waveport size. The patch antenna, shown in Figure 11. P B = Power output of Port 3. If the ratio (L/W) is close to unity, the radiation pattern will be symmetric but may not provide a resonable input impedance. HFSS Waveport Calculator; em: talk -ADS. Patch antenna online calculator. A cross-section of a microstrip transmission line is shown below. Conclusions Antenna array concept is used to improve the better gain of different antennas by nullify the side lobes. 45 GHz. This calculator provides accurate microstrip transmission line analysis and synthesis. In the work of Ab Wahab et al. 6mm thick FR-4 dielectric substrate with dimensions of 46. I've seen many links as well in for microstrip. By:Microstrip antennas are one of the well-known antennas and are widely used because of its diminutive size and can be effortlessly put into practice on printed circuit board. 27 dB and bandwidth of 150 MHz with a gain of 7. The stripline impedance calculator provided below is useful for gaining an initial estimate of trace impedance for striplines. As a result, to reduce the total noise figure the first stage device should have low-noise and relatively high gain. 76SR composite as a substrate. 5. ← RF Calculators. The basic model of a microstrip transmission line is shown in Fig. Your results will be the height and width. 45 GHz on a flexible substrate material. electromagnetic tutorials, microwave engineering forum, microwave engineering tutorials, microstrip calculator. can anybody help me for the dimensions of rectangular patch antenna at freq = 2. Press Analyze to see the results. 09/08/2007: Online VSWR calculator added. A lossless microstrip line uses. 36 GHz). 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. 62mm. 5e9,ForAI=true) pAI = AIAntenna with. Recently, with the development of the multilayer printed circuit board (MPCB) technology, the microstrip antennas can be designed and fabricated from one-dimensional (1D) to 2D and even 3D structures. 35%. In the present work an attempt has been made to design and simulation of rectangular microstrip double patch antenna for X band using microstrip feed line techniques. VSWR Calculator Calculate voltage standing wave ratio (VSWR) and return loss for mismatched circuit. THz electromagnetic wave can permit more densely packed communication links with increased security of communication transmission. The dimensions of the patch is 4. In fact, striplines often make components such as band-pass filter's more accurately, with more symmetric roll-off and no lower cutoff frequency. Always perform a Solve Ports Only solution to ensure the waveport is correct. 45 GHz Microstrip Patch Antenna Using CSTThe patch antenna calculator linkMicrostrip line calculator li. A microstrip is created by etching a trace on a printed circuit board and is mostly used in microwave applications. Most claim to use some or all of these formulas these formulas, but I have discovered ones, for instance, that appear to mistakenly substitute 0. The circumference of the patch is C and the area bounded by the circumference is S. Patch. Analyze. In a 4 × 4 array of microstrip patches operating at 28 GHz is presented, composed of four-element patch series-fed arrays which have an approximate bandwidth of 1. Analyze. For the proposed design this paper got a high gain of 17. Design Microstrip Transmission Line Around 1. Initially, some common mediums of communication such as WIFI/WLAN and Bluetooth were targeted. 0 of permitivity) at. What is a microstrip patch antenna? It is a kind of internal antenna. A compact and efficient microstrip patch antenna is used in the imaging technique to transmit equivalent signal and receive backscattering signal from the stratified human head model. The designed antenna is realized using microstrip line feed on a 1. This article presents the application of photonic crystal (PCs) structures to design a microstrip patch antenna at terahertz (THz) frequency. 29mm, on the 0. 27 mm at 5. there is a small gap on both side of the microstrip with patch. This design approach helps analyzer microstrip inset-fed patch antennas and helps to locate the exact inset length for 50-? input impedance. I try to simulate a patch antenna as defined in emtalk, based on altering the example Simple_patch_antenna. I was using the following calculator to try and calculate what the thickness needs to be and got a result of approx 3mm, this seems very large! I used the following parameters: Dielectric Constant (εr): 4. 5 MHz), and 5. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. Patch Antenna Calculator. 5 GHz. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Patch antennas usually have narrow bandwidths and the 5-GHz WLAN band extends from 5. The edge couple differential microstrip transmission line is a common technique for routing differential traces. When in doubt, use 1 for copper, . This will also provide the time delay the cable provides for a signal and also the capacitance and inductance per. The re-wired 1-port is a pure series element, with no shunt path, so it provides an open circuit (red circle) when connected this way. . A cross-section of a microstrip transmission line is shown below. There is a big disadvantage of microstrip antenna. em: talk - Electromagnetics and Microwave Engineering. Figure 1. This paper describes about the design of microstrip patch antenna over the frequency range of 3. The calculator is set up to handle an asymmetric arrangement, where traces are not centrally located in the PCB layer stack. Enter values for W and L for a microstrip line to determine its Zo and Electrical Length. Model of microstrip line showing cross-section. hfss ports only solution halo i am new to hfss and actualy am confused about how to size the wave port now what i do is once i have calculated the microstrip line width i use the wave port claculator at emtalk to find the wave prt dimension than i use sole port only to find Z0 appearing at the port . The via has a radius of 0. to NF. Left-handed materials have lead to novel microwave antennas, resonators, waveguides, and lenses. 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. For this purpose, in this. Here is a problem, I am simulating a grounded coplanar waveguide with width of 0. This calculator helps you calculate the characteristic impedance of a coaxial cable given its dimensions. In some cases, users require a custom impedance value. 0 GHz. The substrate parameters (ε r and h) and the frequency of interest are required. **Note: Like our stripline impedance calculator, all of our RF calculators allow SI prefix input. The dipole arm's width (W) and length (L) will be optimized for 3. For an embedded (internal) microstrip, the formulas provided in paragraph 4. An individual microstrip antenna consists of a patch of metal foil of various shapes (a patch antenna) on the surface of a PCB (printed circuit board), with a metal foil ground plane on the other side of the board. In present communication square shape is used to design. Pennsylvania State University. Intrinsic techniques, proximity coupled and aperture-coupled patches, applying horizontally coupled patches to driven patch on a single layer and stacked patches are discussed. When a Teflon dielectric substrate is used, the resonant frequency is 12. 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. The design process started with the conventional rectangular microstrip patch antenna as shown in Figures 1a and 1b. Units do not matter; use same units for (w) and (h), waveport size will be in the same units as (w) and (h). 6mm3and feed by aMicrostrip line feed of 50Ω. The microstrip patch is designed such that its pattern maximum is normal to the patch (broadside radiator). Increasing the width of the patch reduces the radiation resistance and increases the bandwidth. Search first posts only. INPUT DATA. 7807 (value<2). To determine the width (W), the microstrip patch antenna calculator was used to provide an initial starting point. 15 to 5. The width of the conducting layer is important to calculate the radiation intensity since it directly affects. 8 GHz. Units do not matter; use same units for (w) and (h), waveport size will be in the same units as (w) and (h). em: talk - HFSS Tutorial 1: Microstrip Patch Antenna. Overview. An X-band, 12-element array of rectangular microstrip patches was demonstrated for the first time to reflect the main beam 20 degrees off broadside. For suspended plate-type patch, to find exactly where is this point I cut narrow slot in the patch, install connector from the bottom of Ground plane and slide the patch along the connector to find this sweet spot. The paper describes Microstrip patch antenna that consists of a half circular patch which is extended to an extra length and is fabricated on FR-4 material that uses Microstrip feeding line method for feeding. Height: Height of the substrate. The microstrip line will be designed on a substrate with a dielectric constant of 10. This technique is commonly employed with patch antennas. For example, if you wish to input "25000000", just type "25M" instead. Use the patchMicrostripCircular object to create a probe-fed circular microstrip patch antenna. The patch antenna developed for 436MHz by Greg (VK3BLG) in 2003 is a remarkable antenna for amateur satellite work. Two points in space, specified as a 2-by-3 matrix corresponding to two three-element vectors of Cartesian. 0 of permitivity) at. AddMSLPort (1, patch, start, stop, "x", "y", priority=5, edges2grid='xy') throwing an. Activity points. The stacked patch configuration is one of the ways of increasing the impedance bandwidth of these antennas to be greater than 25% [1]. Used for various applications, "patch" is a planar rectangular, circular, triangular, or any other geometrical shape metal sheet mounted. 2. I altered the parameters (size, substrate epsR etc), and tried to add a microstrip line for feeding the patch. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. 946 for silver, or 1. I would expect the physical aperture to be the area taken up by the antenna - so it includes not only the patch, but any strips of bare substrate and ground around the edge. 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. The patch antenna, shown in Figure 11. Go to. HFSS is one of the better solution for Patch antenna design. 1. The microstrip patch antenna array was designed to achieve a higher gain and bandwidth compared to a single element antenna. Microstrip patch antennas is one of the most used antennas for wireless communication. The most common version of printed antenna is microstrip antenna, which consists of a metallic patch above a ground plane. Example, If Z 0 = 55 Ω, d = 6 mils and h = 4. 78 GHz, 2. The voltage standing wave ratio (VSWR) calculator determines reflection coefficient (GAMMA), VSWR, and return loss (dB) for a mismatched line. The characteristic impedance (Z o) of a microstrip transmission line can be calculated using the active calculator or the equations at the bottom of the page. In simple case i thought we have three impedances: patch edge, matching line, 50 ohm line. Press Analyze to see the results. Used for various applications, "patch" is a planar rectangular, circular, triangular, or any other geometrical shape metal sheet mounted. The feed forward back 6 8 132500 Epoe hs I propagation. Be sure of which one you finally decide to use. Commonly fabricated with printed circuit board (PCB) technology, a microstrip antenna calculator tool is an electrical transmission line that is. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. Tanδ: Loss tangent of the. . The required inputs are the Dk value for the dielectric constant of the PCB substrate, and the. This design claimed a simulation for a dual band patch antenna, with a kinda basic geometry. This calculator will help you calculate the guided wavelength, provided the dimensions of the microstrip are given as well as the velocity of propagation, the microstrip material's dielectric constant, and the input frequency. 1. Only 2 slots were taken out of the regular patch shape, and a generic feeding line structure. You are now ready to draw the microstrip line trace. A rectangular microstrip patch antenna is designed and simulated with CST software using 0. The microstrip impedance represents the characteristic impedance of the microstrip line, which is the uniform impedance provided by the uniform cross-sectional dimensions along the microstrip (flat copper conductor) length; to prevent signal reflection. A low profile, unidirectional, dual layer, and narrow bandwidth microstrip patch antenna is designed to resonate at 2. In this proposed paper, a single band microstrip patch antenna for fifth generation (5G) wireless application was presented. There are some advantages to using a microstrip transmission line over other alternatives. Now, i want to wrap the antenna on a cylindrical surface and simulate using HFSS tool. design a ‘Hexagonal Microstrip Patch Antenna’ for wireless communication. February 28, 2022 · Infinus. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. Connecting a coaxial probe into the antenna on the back side of the antenna. An imaging system based on THz spectrum incorporating nanomaterial-based microstrip antenna provides better resolution at lower cost. Figure 1. Enter the desired resonant frequency (fr)to determine the physical length (L) and width (W) of the microstrip line. 1. To use this tool, enter the values for. The range for antenna is chosen between 2. It consists of rectangular substrate and the metal trace layer as shown in Fig. B. emtalk, electromagnetics and microwave engineering tutorials and forum. Activity points. The main category is Antenna design calculators that is about Antenna design calculators. 10). 15 to 5. This paper refers to a detailed analysis on the design and implementation of 4×1 and 8×1 microstrip patch antenna (array) of given specifications using IE3D software and a dielectric material FR4 with dielectric substrate permittivity of 4. Coplanar Waveguide With Ground Characteristic Impedance Calculator. The radius of the circular patch is chosen as 7. i hope you understand. The results should only be used as an estimate for the waveport size. Index Terms-Microstrip patch antenna, MATLAB calculator, CST, 2. This antenna does not take any much extra size and can be etched on the same mobile PCB itself. Welcome to EM Talk. This site is dedicated to providing advice and tutorials to electromagnetics, and microwave engineering related topics. title="Microstrip. The coaxial probe feed used . em: talk - HFSS Tutorial 1: Microstrip Patch Antenna See there are a lot many books from where you can get those formulas to calculate the length and width of the patch antenna. The antenna is inset fed by a microstrip. . 28, tangent loss of 0. 1) calculate edge impedance Z=90* (Er^2/ (Er-1)) 2) calculate quaterwave matching line as sqrt (Z*50) 3) connect edge through matching line to 50 ohm line. 1317 µm 3 1200 µm 2141. 8e9,Z0=75); figure; show (mline); Plot the S-parameters of this line. The electrical parameters may be determined from specified physical parameters, or the physical parameters required to meet a given set of electrical parameters may be found. 2017. 78 GHz is achieved. Following equations or formula are used for this microstrip patch antenna calculator. The goal is to match the input impedance (Zin) to the transmission line (Z0). The simulated results such as gain, radiation efficiency and 10 dB impedance bandwidth of rectangular. The patch is of length L, width W, and sitting on top of a substrate (some dielectric circuit board). 2. 2. The number of stages can range from 2 to 30 stages. In addition, an. Inclined slot. There are different ways of designing stacked patches, primarily differing in the way their feed is. 1. The advantage of the microstrip line fed U-slot patch is that it is easy to form the array. This tool calculates backward crosstalk which is usually the dominant crosstalk component. 002 and height of 1. Microstrip patch antenna input impedance in the fundamental mode (i, j, k) = (1, 0, 0). It represents the ability of a microstrip transmission line to store electrical charge per unit voltage. Enter values for W and L for a microstrip line to determine its Zo and Electrical Length. The printed dipole antenna is often used in planar microwave radiative applications that require an omni-directional pattern. Because of small size, light weight, less cost and good performance these types of antennas are also used in spacecraft, satellite and missile applications []. A redirection efficiency of 65. A new technique is presented for designing microstrip patch antennas with very good input impedance matching. Each Port is matched to the characteristic impedance Z 0 of the single, isolated microstrip transmission line. em: talk - Electromagnetics and Microwave Engineering. The calculator is set up to handle an asymmetric arrangement, where traces are not centrally located in the PCB layer stack. Patch antenna with a quarter-wavelength matching section. In this course, we detail microstrip patch antenna array creation as a method of design. A frequency range of 1. Crosstalk is unwanted coupled energy between traces. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo). Enter values for W and L for a microstrip line to determine its Zo and Electrical Length. Output is radius and effective radius of the circular patch. 45 - empirical coefficient mainly for open end effect. Site Map . At low frequencies near 0 GHz, the input impedance is inductive since. The substrate parameters (ε r and h) and the frequency of interest are required. However, in this paper, hexagonal microstrip patch antennas are designed and simulated for wireless backhaul at 3. 52 mm wide conducting strip over a 1. By default, the patch is centered at the origin with feed point along the radius and the ground plane on the xy - plane at z = 0. Microstrip Patch Antenna Calculator Calculate dimensions and edge impedance for desired resonant frequency. the calculator for microstrip line in emtalk asks for "elctrical length in degrees" and i am not able to calculate. 8 GHz, which makes the design challenging. The truncated cut to the radiating elements creates the Right Hand Circular (RHC) radiation pattern ideal for most amateur. 27 mm 3 and the substrate material is Rogers RT/duroid 6010/6010LM. This is a tool I developed to assist us at the Cambridge University Spaceflight Club to design a patch antenna for telemetry. The feed lines are made of similar length so the beam pointing is broadside to the array at all frequencies. The microstrip line calculator makes it possible to calculate the characteristic impedance of a microstrip line from the ratio between the width of the line and the height of the substrate as well as the parameters of the substrate. The substrate parameters (ε r and h) and the frequency of interest are required. The substrate parameters (εr and h) and the frequency of interest are required. Description. Enter values for W and L for a microstrip line to determine its Zo and Electrical Length. For a more accurate analysis, use ANSYS HFSS or similar programs. emtalk, electromagnetics forum, electromagnetic tutorials, microwave engineering forum, microwave engineering tutorials, microstrip calculator Check Open neighbouring websites listMicrostrip Crosstalk Calculator Stripline Crosstalk Calculator. 2 and a height of 1. Millimeter wave (mmWave) wireless technology has become a part of human life for high-speed and secure data transmission. This is accomplished through proper choice of the mode (field configuration) of. The input impedance at the radiation edge is also computed. Search titles only. The noise factor equation shows that stage 1 has the most influence in the overal noise factor/figure of a system. Wu Odd and Even mode fields in microstrip have different percentages of total field fringing through air which changes effective Er Leads to velocity variations between even and odd +1 +1 +1 . The calculation of the length of the first dipole was carried out based on the lower operating frequency than 1. But I get stuck at port = FDTD. This can be set to zero, but the calculated loss will not include conductor losses. com - Anthony. Patch antennas usually have narrow bandwidths and the 5-GHz WLAN band extends from 5. Placing an inset for a microstrip feedline into the antenna. Figure 1. Matin, A. mline = design (microstripLine,1. This link is listed in our web site directory since Saturday Jul 11 2015, and till today "Patch Antenna Calculator" has been followed for a total of 1156 times. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance. The ANSI-based circular microstrip patch antenna is designed to work at 7. there is a small gap on both side of the microstrip with patch. The substrate parameters (ε r and h) and the frequency of interest are required. 8x4. Normally a square patch is used. Noise Figure Calculator Calculate noise figure, gain, and noise temperature for a N-Stage cascade device. 45/5-GHz WLAN bands. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. Note that a quarter-wave length transformer was used to match the patch to a 50 Ohm feed line. 1 of the Microstrip Calculator using H2 in place of h, εr,eff can be computed as specified in Eq. com . Benefits of Microstrip Patch Antenna Transmission situated operations. This study strives to contribute in wireless communication and networking systems. Following is the list of useful converters and calculators. It is intended only as a very crude estimate, as I. com Microstrip Patch Antenna HFSSv10 ( download simulation file) The microstrip patch antenna is a popular printed resonant antenna for narrow-band microwave wireless links that require semi-hemispherical coverage. 8 GHz [], so we obtain:. On the other hand, the type of conductive material used, and. Use the patchMicrostripCircular object to create a probe-fed circular microstrip patch antenna. The unit vector, n, is normal to the patch edge. Description. The patchMicrostrip object is a microstrip patch antenna. Relative Dielectric Constant ( εr ): Track Width (S):. The microstrip patch antennas as radiating device have advantages like, low profile, conformal and low-cost. A compact and reduced VHF micro-strip patch antenna with dimensions 17 × 10 cm printed on an FR-4 substrate with relative permittivity ϵ r = 4. They hadlarge in intensity and extravagant because of the province. The substrate thickness, t, is thin. The proposed antenna. The patch antenna calculator link. Pasternack's RF Calculators and Conversions section provides engineers valuable and easy-to-use tools ranging from complex mathematical formulas to simple conversions.