The 2x2 patch array antenna is simulated using ansoft hfss. 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 antenna is also used in this paper, for the monopulse system. A patch antenna is a narrowband, widebeam antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, antenna based final year projects for ece such as a printed circuit board, with a continuous metal layer bonded to the opposite side of the substrate which forms a ground plane. Design and simulation of a slotted patch antenna sensor for. Kaband monopulse antennapointing systems analysis and. Simulate and analyze linear end fire array of patch antenna design. This paper shows the design considerations of the proposed antenna as well as the simulated results of the same.
Through introducing an interdigital capacitor idc in the patch, a planar metamaterial mtm unit cell in the ground plane and cutting two vertical slits from the slot, size reduction of the. Deschamps in 1953, but didnt become practical until the 1970s when it was developed further by researchers such as robert e. Two examples of microstrip patch antenna array feed networks. Microstrip patch antenna with slots in ground plane. This workshop is intended to show how to simulate and analyze a microstrip patch antenna using ansys hfss. Specifically,two folded feed lines are placed between the radiator patch and the feed point. Design rectangular patch antenna using hfss part 1 youtube. Kaband slotmicrostripcovered and waveguidecavitybacked. In this paper a probe feed patch antenna is designed and simulated using the ansoft hfss environment. Design of high gain, wideband microstrip resonant cavity.
The design of a stacked aperture coupled microstrip patch antenna is very challenging when dealing with wideband impedance matching. Ansys hfss is the industry leading 3d electromagnetic em simulation tool for high frequency and high speed electronic components including antenna design and placement. Substrate integrated waveguide based monopulse slot antenna. The objective is to provide a very thorough introduction to hfss as applied to antenna design, which may be followed stepbystep in hfss with the investment of only a few hours of time. Probe feed patch antenna 4 probe feed patch antenna als tab. Microstrip patch antenna using hfss ansys duration. The gain of a siw patch antenna may be enhanced using different this is the first book to really present a concerted technology road map on antenna advancements for mobile communications ranging from 3g to 5g and beyond, including design requirements, practical performance, and future market trends. Impedance matching is a major challenge because the effect of changing one of the parameters in not independent of the others.
The operation frequency of patch antenna was designed at 2. And does any one have the idea about the radiation box dimension. However, in cst you need to pick two points and then choose the type of excitation you need for example lumped element or wave port. A dualband monopole antenna is fabricated on a microstrip in the laboratory in both unwrapped form and wrapped form using the proteus ares package for automatic construction of the pcb boards. The radiating element is a modified circular patch antenna, designed for getting circular polarization. The rectangular micro strip patch antenna is analyzed using high frequency structure simulator hfss v 11.
The fundamentals of patch antenna design and performance. The design of a high gain microstrip patch antenna array using microstrip line. Four aperturecoupled slots with are used to excite the slotmicrostrip elements at the feeding ports 1 and 2 of the monopulse comparator, as shown in figure 1. This paper proposes a monopulse antenna and comparator network with righthanded circular polarization rhcp for two frequency bands. Monopulse network in order to get the monopulse functioning in the horizontal plane, a waveguide network has been designed.
Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line. Design quarter wavelength feed patch antenna and recessed patch antenna to meet project specifications. Jan 01, 2014 the structure of the monopulse antenna array is shown in figure 1, which consists of a microstrip with 2 x 32 slots, a waveguide cavity, and a waveguide monopulse comparator. Antenna based projects antenna based projects for ece. The single antenna elements arent always together switched in phase. Monopulse radar avoids problems seen in conical scanning radar systems, which can be confused by rapid changes in signal strength. I have gone through many threads in the forum about finding the input impedance of patch antenna, however all the replies cant catch my mind. The monopulse uses four antennas or quadrants of a single antenna. Determining input impedance of patch antenna in hfss. Eferences fig7 3d polar plot of patch array antenna from the figure above, the aceived gain was 12. A compact single layer monopulse microstrip patch antenna array for the application of monopulse radar has been designed, manufactured and tested. In ieee paper said a 50 ohmi coaxial line is used to feed the antenna.
Click here to go to our page on circular patch antennas new for september 2018. The designed array needs to have some specific requirements related to its radiation pattern monopulse configuration to identify the input direction. It is aimed to design a xband monopulse microstrip antenna array that can be. Multiband monopole and microstrip patch antennas for gsm. Does anyone have an idea about the wave port or lumped port in hfss,which should be used especially for microstrip patch antenna in uwb range i. Lo communications systems and research section nasas deep space network dsn has been using both 70m and 34m reector antennas to communicate with spacecraft at sband 2. Sep 01, 2016 this slide describes design and simulation about the micro strip patch antenna using hfss software. In future this paper concentrates on manufacture of the proposed design. Design and analysis of microsrtip square patch antenna under the kind guidance of. The 15db bandwidth of antenna is 43%, and isolation is better than 33db over this bandwidth.
The objective is to provide a very thorough introduction to hfss as applied to antenna design, which may be followed stepbystep in hfss. Nevertheless, due to the low operation frequency of the sensor at 900 mhz, the dimension of the rfid folded patch antenna sensor are still relatively large, i. Design of 2x4 microstrip monopulse patch antenna in cband international conference on thelectrical, electronics and computer engineering, 12 may 20. Multiband monopole and microstrip patch antennas for gsm and. For the proposed design this paper got a high gain of 17. The crosssection dimension of the waveguide in this design is wr28. A k band dualpolarized monopulse microstrip patch antenna array has been designed. Hfss antenna practices impedance matching antenna with circuit elements and explores examples of finite array design. There is a bit difference to identify the feeding port between the hfss and cst. Patch antenna design using hfss ozen engineering and ansys. The laalo 3 was chosen as a substrate material for the designed patch antenna with a dielectric constant of 23. Choosing a suitable substrate material is extremely important while designing a patch antenna. The 44 rectangular patchs and the cross shaped sumdifference network both are optimized by cst. A lowcost monopulse radial line slot antenna with slots placed on the upper plate.
As an example, the real and imaginary parts of zin z11 have been shown in the figure below. Hfss design of square patch antenna with slot duration. Mutual elements and substrate effect analysis on patch antenna. A microstrip monopulse antenna in millimeterwave frequency was designed in 3.
I have a problem in designing pifa, i dont know how to feed the antenna in hfss. Dualband circularlypolarized monopulse antenna system. Simulated results of 2d e plane, h plane patterns are shown. The formulas we used to calculate the length and width of patch are shown below. In this paper, a rectangular microstrip patch antenna is designed using hfss software. Increasing microstrip patch antenna bandwidth by inserting. Dualpolarized aperturecoupled wideband microstrip patch. Under this concept antennae are combined which are built up as an antenna array and which get a special method in the feeding. It is one of the several commercial tools used for antenna design. What are the basic rules to follow in designing an array of microstrip. Design of printed rectangular monopole antenna using hfss. A high directivity wideband resonant cavity antenna rca is proposed in which a compact wideband microstrip patch antenna mpa is utilized as radiator. Apr 19, 2016 the resulting plots for z11 in hfss will show us the correct input impedance of patch antenna.
This is a video tutorial on how to design a rectangular patch antenna using ansoft hfss. Keywords 2x4 microstrip patch antenna, ratrace coupler, inset feed, square patch antenna the design of array antenna is vital study for todays wireless communication system to achieve higher gain, highly directional beam and also to counteract the effect of fading while signal propagates through various corrupted environments. In the search by name field, type rogers rt duroid 5880 tm. The best feeding point from the geometry of microstrip patch antenna we can understand that to couple the maximum energy to it the feed is provided beneath the ground directly see fig. The dimensions of antenna can be found in the hfss simulation file. The word monopulse implies that with a single pulse, the antenna can gather angle information, as opposed to spewing out multiple narrowbeam pulses in different directions and looking for the maximum return. I am working on designing an array for uwb application using ansoft hfss. Interaction between the patch and the horizontal arm of the feeder is accounted through coupled lines maclin component. Simulation and results the proposed antenna was simulated by using hfss high. Model of a monopulse radar tracking system for student laboratory. Design of low sidelobe slotted waveguide monopulse antenna.
Analysis and design of circular microstrip patch antenna at 5. For the monopulse antenna array, loss is unavoidable in the. P, india abstract here we made an attempt to maximize the gain of microstrip patch antenna. Sparamertes of the antenna without shorting pins is. Rectaangular microstrip patch antenna for wireless. Fig 6 design of single patch antenna in hfss simulation results the 2x2 patch array antenna is simulated using ansoft hfss.
Hfss antenna covers both finite element analysis fea volumetric simulation as well as integral equation ie simulation and how they can connect a reflector antenna dish simulation to a horn antenna simulation feeding the dish. We present a circularly polarized patch array in 37 ghz frequency, within a narrowband application less than 1% for signal detection. The beauty of this antenna is the use of single patch which make it easy to fabricate consequently cost of antenna becomes cheaper. The size of the groove guide in the waveguide cavity is. Four aperturecoupled slots with are used to excite the slotmicrostrip elements at the feeding ports 1 and 2 of the monopulse comparator, as shown in figur. Mar 07, 2016 hfss microstrip patch antenna analysis and design 1. Software used to design microstrip patch antenna hfss is commercial finite element method solver for electromagnetic structures from ansys corp. Research of dualpolarized monopulse microstrip antenna array. Dualband circularlypolarized monopulse antenna system with. Design of a stacked microstrip patch antenna using hfss. This paper explains about a 3x3 rectangular microstrip patch antenna arrays using hfss 14. The hfss package is introduced and tested on a basic rectangular patch antenna to confirm well known results in the theory and literature. Multiband antenna for applications in sband, cband, xband communications. Hfss stands for high frequency structural simulator.
A monopulse antenna is one method of realizing a tracking radar. Pdf monopulse waveguide patch array antenna in 37 ghz band. Design rectangular patch antenna using hfss part 1 duration. This paper presents a design of simple microstrip patch antenna working on operating frequency of 2. To increase the radiation and bandwidth, shape of patch can be changed by creating slots on it. A rectangular patch design equations are introduced and validated by well simulated results. The design of the single rectangular patch in hfss. The monopulse pattern is also achieved in 12 by exciting different modes of a. It consists of rectangular substrate and the metal trace layer as shown in fig. In this work, a slotted patch antenna is designed to further reduce the sensor footprint. Ppi mode, the radar would employ monopulse beam sharpening to further narrow the effective. As the microstrip patch antenna consist of a ground a patch and a substrate.
Various microstrip monopulse antennas have been proposed. The designed process has been carried out using matlab and hfss software by entering 2. Monopulse radar is a radar system that uses additional encoding of the radio signal to provide accurate directional information. A k band dualpolarized monopulse microstrip patch antenna array has been. After design, the patch was simulated in hfss to get the directivity, the gain curves along with the 3d visuals of the far field radiation and the 3d view of the designed antenna patch. Solved find the input impedance of patch antenna in hfss. A dualport sumdifference beam antenna with simple structure.
Click the ok button create substrate to create the substrate. The parameters evaluated were gain, beamwidth and return loss. To determine the width w, the microstrip patch antenna calculator was used to provide an initial. In hfss you just need to place a rectangular patch and then right click go to excitation then choose lumpedwave port. How i give ports to the patch antenna array which is.
The patches are placed on one layer, and the monopulse network and feeds are placed on di. Kaband monopulse antenna pointing calibration using wideband. The design of array antenna is vital study for todays wireless communication system to achieve higher gain, highly directional beam and also to counteract the effect of fading while signal propagates through various corrupted environments. The slotted waveguide monopulse antenna is still an excellent candidate due to low loss, low profile, low crosspolarization levels. Monopulse waveguide patch array antenna in 37 ghz band manuel sierra perez, pedro rodriguez fernandez, jose luis masa campos, jose luis fernandez jambrina department. The designed antenna is suitable for wlan application. Wideband rectangular microstrip patch antenna using lprobe. The designed antenna has a resonating frequency of 2. Kaband monopulse antennapointing systems analysis and simulation v.
How i give ports to the patch antenna array which is placed on a. Oct 25, 2011 the hfss package is introduced and tested on a basic rectangular patch antenna to confirm well known results in the theory and literature. Micro strip antenna has limited bandwidth due to resonance behavior. The applied monopulse technique determines the nature of information in the received signal prior to any processing. By using four slots on patch antenna he designed a g shape on patch.
The dimensions of patch antenna were calculated based on the three essential parameters. The name refers to its ability to extract range and direction from a single signal pulse. In this paper, the design and analysis of a 2x4 microstrip patch antenna array is introduced and a ratrace coupler is incorporated. To improve the quality of telecommunication and to meet future. Wband lowsidelobe seriesfed microstrip antenna array based on. Ec 4th year shivanshu awasthi ec 4th year sarvesh kumar nishad ec 4th year novman asif ec 4th year. First the model of the microstrip patch antenna has to be drawn in hfss. Microstrip patch antenna array design to improve better. The bandwidth is expected to be greater than 50 mhz.
When this is the case the role of a computer aided design package is vital. Pdf workshop rectangular patch antenna introduction to. Microstrip patch antenna using hfss linkedin slideshare. The antenna radiation reflected lesser in antenna with fss layer by 7. The feed horn is solved using hfss fem solution and the main re. The kaband monopulse pointing system is used in the deep space network dsn to obtain accurate pointing at kaband while maximizing amplitude stability, and has been presented extensively in 1. Wideband rectangular microstrip patch antenna using l. The monopulse antenna array is designed with a microstrip with slots. The microstrip line model method is used and been simulated by using hfss software. Analysis and design of rectangular microstrip patch.
Ansys acquired the sbr technology in its acquisition of delcross technologies in august 2015. Comparison of different types of microstrip patch antennas sumanpreet kaur sidhu yadavindra college of engineering guru kashi campus punjabi university. The monopulse pointing system is composed of the antenna, monopulse feed, lownoise amplifiers lnas, downlink tracking and telemetry dtt, and. The patch antenna is modeled as parallel rlc circuit alternatively it could be represented using a transmission line model 2 and the lprobe as a stub consisting of 2 ideal lines. Getting started with hfss v9 for antenna design october, 2003 this getting started training material is intended for new users of hfss. Microstrip patch antenna array for rainfall radar ieee xplore. Design, simulation and analysis of a probe feed patch antenna.
Monopulse waveguide patch array antenna in 37 ghz band. This means that the choice of a certain monopulse technique will determine the construction of the radar antenna system. A 1 times 8 monopulse microstrip patch antenna array in kaband has been proposed. The design of array antenna is vital study for todays wireless communication system to achieve higher gain, highly directional beam and also to counteract the.
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