This paper presents square patch antenna loaded with slot splitring resonators. The electromagnetic simulator ansoft hfss is used to numerically investigate the antenna configuration. It is one of the several commercial tools used for antenna design. 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. This paper presents a printed wideslot antenna design and prototyping on available lowcost polymer resin composite material fed by a microstrip line with a rotated square slot for bandwidth enhancement and defected ground structure for gain enhancement. Patch antenna is actually a patch antenna placed over a antenna base. Copper lumped port excitation create a lumped port and excite it. Increasing microstrip patch antenna bandwidth by inserting.
Microstrip patch antenna with slots in ground plane. Sayeed abstractin this article, the parametric analysis of the slotloaded microstrip line feed patch antenna is investigated using arti. Simulated results on high frequency structure simulator software version hfss and cst10 are compared for fr4 epoxiy. Cross slot rectangular microstrip patch antenna for wlan.
A microstripfed slot antenna offers a better isolation between the feed and the material under measurement compared to the microstripfed microstrip antenna. In microstrip antennas, embedded slots can also be used to enhance the impedance bandwidth of a single band antenna. Software used to design microstrip patch antenna hfss is commercial finite element method solver for electromagnetic structures from ansys corp. Hfss software is used for simulation and design of micro strip patch antenna where its version is 11. The usable bandwidth of the slotted antenna is 840 mhz 2. Radiation characteristics of the antenna and different methods for control. Unfortunately, the equations related to the cavity backed slot antenna are somewhat complicated and in my. When i have simulated it in hfss with a resonant frequency of 9. Double lslot microstrip patch antenna array for wimax and. Pdf design and fabrication of eslot microstrip patch antenna.
Simulation results based on hfss package on return loss and e and hplane radiation patterns are provided. Quad band hslot microstrip patch antenna for wimax. Printed wideslot antenna design with bandwidth and gain. The rotated square slot is embedded in the middle of the ground. A 28ghz uslot microstrip patch antenna for 5g applications. Actually, slot antenna is a radiating element formed by a slot in a metallic surface. Slot antenna differs with patch antenna in many aspects.
The formulas we used to calculate the length and width of patch are shown below. Analysis of slotloaded rectangular microstrip patch antenna. Analysis of microstrip line feed slot loaded patch antenna using arti. In this paper, awaveguide feeding technique is proposedthat uses a waveguide to directly feed the. Design and simulation of eslot patch antenna with coaxial feed. We added up to 15 slots in the ground plane with 3 mm spacing. Antenna projects using hfss electronics electrical projects. Wideband rectangular microstrip patch antenna with uslot. Hfss stands for high frequency structural simulator. Rectangular patch antenna array slotted design for triple. The graph is plotted for frequency in ghz versus return loss in db.
Pdf design of dgs slot microstrip patch antenna ashi. Moreover, this paper discusses the performances of various dielectric substrates, having dielectric constants ranging from 2 to 5. In this paper we show that a dualfrequency operation is achieved by using a tapered meander slot antenna with a shortended microstrip line feed. 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.
What is the difference between slot antenna and patch. Slot loaded square microstrip patch antenna for dual band operation. We inserted slots in parallel and horizontally to the feeding line. Design, simulation and analysis of multiple lslot microstrip.
With proper dimensions for the second uslot bandwidth as high as 49. Micro strip patch antenna with slots designed using hfss. In this paper, a quadband hslot microstrip patch antenna for wimax application is presented. Slots in the ground plane of rectangular patch we designed microstrip patch antenna with multiple number of slots. Design and analysis of frequency reconfigurable ushaped slot. Comparative study of patch antenna loaded with slot split. An introduction of aperture coupled microstrip slot antenna. Hfss tutorial 2microstrip patch antenna with a cutting slot coaxial. The slots and slits of ushapes have been embedded on patch antennas to reduce the. A compact meandertype slot antenna with 56% size reduction has been reported in 2 in which nonuniform slot line widths give rise to lower operating frequency of the antenna.
Microstrip patch antenna with circular slot for wireless. Analysis of microstrip line feed slot loaded patch antenna. One of the main advantages of this antenna is its reduced size, compared to the microstrip patch antenna. Pdf design of hslot patch antenna for ultra wideband.
With the help of simulation software an soft hfss following design variation were followed. The array consists of four, rectangular, slot elements, arranged sidebyside in a linear array and developed around 5ghz. The square slot with side length and slot width is located at an offset of distance from the patch side. For optimized zshape patch antenna with i slot the maximum directivity achieved is 5. Geometry of the proposed double lslot microstrip patch antenna array.
Microstrips patch antenna with slot array using hfss youtube. Hfss design of square patch antenna with slot duration. Shivnara yan et al slot loaded rectangular microstrip patch antenna 425 the present work, the patch is fed by coaxial cable 50 ohm. The proposed antenna consists of a microstrip patch with a ushaped slot that is fed by a broadband electromagnetic coupling probe, known as lprobe. In spite of these advantages, it has main disadvantage of back radiation. The slot width on the right hand side is expanded to in order to allow for the placement of the diode across this side of the slot. The radiation performance such as vswr, return loss, radiation pattern and gain of the antenna are simulated using ansoft hfss and presented. A microstrip conformal hexagonal slot patch antenna fed by 50. The uslot patch antenna structure consists of a patch, ushaped slot, a ground plane and coaxial feed lines. In this paper the x slot antenna has been considered for applications in wireless communications system. To plot the radiation pattern of slot antenna using hfss. Microstrip conformal hexagonal slot patch antenna for.
Compared to a single patch antenna, the results of a double patch antenna array are found to be enhanced. The simulation of the proposed antenna is carried out using ansoft hfss. Fig 3 shows the return loss for the single uslot antenna which is the simulated result. Totay ill show you how to evaluate the the value of microstips feed antenna in hfss software where a bluetooth frequency is used and slot in. The parameters evaluated were gain, beamwidth and return loss. A slot loaded micro strip antenna with an aperture coupled feed is proposed. Conventional micro strip patch antenna without slot. Design of h slot patch antenna for ultra wideband 227 the simulated radiation patterns at 3.
The e slot microstrip patch antenna was then fabricated using. The strip loaded proposed antenna is fed through microstrip line to achieve proper impedance matching. The previous page introducing slot antennas was primarily theoretical giving you an intuitive idea of how slot antennas work. A wideband single layer coaxially fed rectangular microstrip patch antenna with a double uslot on the patch is presented. The basic radiator is a square patch with a dual loop shaped slot cut into the patch area. Fig 6 design of single patch antenna in hfss simulation results the 2x2 patch array antenna is simulated using ansoft hfss. Slot loaded microstrip patch antenna for wlan and wimax.
Simulation and design of the microstrip patch antenna is done on a substrate of dielectric constant 4. From the fig 3, it can be shown that the uslot microstrip patch antenna at 5. Hfss tutorial 3microstrip patch antenna with a cutting uslot. A practical slot antenna is the cavitybacked slot antenna. Optimization of zshape microstrip antenna with i slot. Design of hslot patch antenna for ultra wideband 227 the simulated radiation patterns at 3. A cavitybacked coplanar waveguide slot antenna array. A cavitybacked coplanar waveguide slot antenna array james mcknight abstract in this thesis, a cavitybacked slot antenna array is designed for relatively wide instantaneous bandwidth, high gain and low sidelobes.
Hfss means high frequency structure simulator this was launched by the ansoft, designs are four slot patch antennas and the antennas work in the frequency ranges as follows 4. Hfss means high frequency structure simulator this was launched by the ansoft, designs are four slot patch antennas and the antennas work in the. A new dualband microstrip antenna with ushaped slot in this paper, we present a new dual band planar antenna. Since the slot is thin, the voltage can be sinusoidal with zero voltage across the ends of slot. Varactor diode loaded reconfigurable patch antenna with. Aperture coupled microstrip slot antenna couples the patch antenna with microstripline through an aperture.
In my previous tutorial on hfss, i give an idea of cutting a slot in a rectangular patch so if you dont know how to cut uslot in patch then go to hfss. The patch is excited through a slot aperture 19 placed beneath it in the ground plane while the feeder line23, placed on the lower side, couples energy through it1618. Slot loaded square microstrip patch antenna for dual band. An ishaped microstrip line is used to excite the square slot. The 2x2 patch array antenna is simulated using ansoft hfss. Simulation and results the proposed antenna was simulated by using hfss high. Reconfigurable ushaped slot micro strip patch antenna using hfss.