Chigrin institute of highfrequency and communication technology faculty of electrical, information and media engineering. Figure 5c shows the insertion loss due to the graphene patch after deembedding the microstrip circuit calculated at 5 ghz, versus the side l g w g of the graphene patch. Graphene as patch conductor material on sio2 as substrate put forward good optical distinguish making it easy to. Patch or microstrip phased array antenna design for 5g applications is an easy area for any designer to begin implementing wireless capabilities in new 5g systems.
Increasing microstrip patch antenna bandwidth by inserting. Two important requirements are tunability, where the response frequency of an antenna can be tuned, as well as beamforming, where the radiation pattern from an antenna can be directed. The parameters evaluated were gain, beamwidth and return loss. Select at least to intersecting 3d objects in object selection model press o on your keyboard to ensure this, than cl. The sensor is electrically embedded within a patch antenna.
Starting from design a single graphene patch element to the full array which is based on a graphene surface to control and improve. So graphene can be regarded as a reactance component loaded into patch antenna. What are the properties i should assign to a material in hfss. According to my understanding, since there is no graphene material defined in the hfss software, we need to define the material ourselves in the hfss software. Graphene, substrate materials, rectangular nano patch antenna, terahertz region, hfss. Hfss model is created as shown in figure 3 with keeping the other dimensions of antenna model as given. Graphenebased electronically tuneable microstrip attenuator. Oct 25, 2017 in this video, we will design the patch antenna operating at 30ghz 5g band and will draw the antenna, assign the material, make the boundary, add setup and frequency sweep, and finally will plot. Hi, simply select the object by clicking on it or by using o key from the keyboard. How to use the hfss software subtract button if it does. Recently, i am learning to simulate the graphene based antenna using hfss software. In a previous work, a patch microstrip antenna for 600 ghz with both copper and graphene has been investigated using the simulator ansys hfss. The performance parameters were achieved with return loss 16.
A microstrip patch antenna manufactured with flexible graphene based conducting material sayeed z. Graphene patch antenna with lateral edges defined by. In these experiments the direction of the thz radiation is reversed fig. Analysis of graphene based optically transparent patch. Analysis of graphene based triangular nano patch antenna using. Jun 22, 2018 simulate and analyze a rectangular patch antenna using ansys hfss, including return loss and 3d radiation fields. Later fabrication of antenna was carried out with graphenepvdf films as conducting patch deposited on bakelite substrate and copper as ground plane. The first variation is the addition of graphene nanoribbons armchair and zigzag on the left and right edges of the graphene patch, in order to evaluate the influence of these structures on a patch antenna. The edge fed microstrip line graphene based rectangular patch antenna is designed.
Go to add material and insert major properties of your material like dielectric permittivity, permeabil. Rectaangular microstrip patch antenna for wireless. The simulation has been performed using high frequency simulator software hfss, which. Simulate and analyze linear end fire array of patch antenna design. However, as we will see further the graphene resonator provide to antenna new functionalities. In the design silicon substrate and graphene patch is used. Sep 01, 2016 this slide describes design and simulation about the micro strip patch antenna using hfss software. Table 2 details the design parameters of the graphene patch antenna. Ansys hfss is a 3d electromagnetic em simulation software for designing and simulating highfrequency electronic products such as antennas, antenna arrays, rf or microwave components, highspeed interconnects, filters, connectors, ic packages and printed circuit boards.
Graphene patch antenna with lateral edges defined by armchair. Primarily, antenna was designed at 6 ghz frequency and simulation results were obtained using ansoft hfss tool. Right click on that object and go to assign material. 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. The design of microstrip patch antenna using a graphene material shown in fig.
A dual band antenna and a microstrip fed patch antenna, used in. Analysis of graphene based triangular nano patch antenna. Potential application for graphene antenna design for validation graphene based rectangular patch antenna has been designed and numerically analyzed. Simulation of graphenebased nanoantennas n3cat upc. Graphenepvdf films were prepared using solvent casting process. We analyze a graphene based nano patch array antenna at thz band. Microstrip patch antenna, bandwidth, ground slots, hfss simulator 1. Comparative investigation of graphene nano patch antenna for. Marinov industrial and manufacturing engineering department. The microstrip patch antenna model used for the numerical simulation in ansoft hfss is shown in fig.
Design and fabrication of graphene reinforced polymer. A molecularly imprinted polymergraphene sensor antenna. The length of patch has been calculated using spp dispersion relation of graphene antenna resonance condition 11. A triple band flexible antenna using multilayer graphene. Note that 19 discussed the excitation of a resonance in a graphene patch under plane wave incidence, but no real feeding of the antenna was assessed, i. Simulate and analyze a rectangular patch antenna using ansys hfss, including return loss and 3d radiation fields. Phased array antenna design for 5g applications blog. Workshop rectangular patch antenna introduction to ansys hfss.
Graphene as patch conductor material on sio 2 as substrate put forward good optical distinguish making it easy to. A tunable frequency microstrip patch antenna using graphene. Braaten electrical and computer engineering department north dakota state university fargo, nd 581086050, usa email. The antenna designs are simulated on hfss software and the performance is analyzed in terahertz band based on the different electronic properties. Want to design a graphene microstrip patch antenna. The model of graphene patch antenna is created on fem based hfss software with physical dimensions of radiating patch having length l p 23m and width w p 31m. Antenna performance is maximized by varying specific subcomponents. The use of graphene patch as conducting material for antenna, due to. A dual band antenna and a microstrip fed patch antenna, used in the communication lab. Design quarter wavelength feed patch antenna and recessed patch antenna to meet project specifications.
How to use the hfss software subtract button if it does not. The edge fed microstrip line graphene based rectangular patch antenna is des. Then the tunable frequency of the antenna is realized. The antenna contributes to the photocurrent in two ways. Investigation of graphene based miniaturized terahertz antenna for. Graphene offers a new approach to thz communications due to. The antenna structures are simulated by using finite element method based electromagnetic simulatoransys hfss. The edge fed microstrip line graphene based rectangular patch antenna is designed here for operating in the frequency range 2. In this video, we will design the patch antenna operating at 30ghz 5g band and will draw the antenna, assign the material, make the boundary, add setup and frequency sweep, and finally will plot. By using ansys hfss, the circuit was optimized for.
Resonant frequency of the antenna10ghz relative permittivity of the substrate 2. Simulating graphenebased antenna using hfss electrical. If the subtract button is grayedout, than you should probably not yet selected any 3d model entities for the function to work. The graphene has a reconfigurable surface conductivity that can be tuned to operate at the desired frequencies. Pdf workshop rectangular patch antenna introduction to.
Graphene based wideband arc truncated terahertz antenna for. Material modeling approach for graphene antenna design. The use of graphene patch as conducting material in the antenna possesses. It consists of rectangular substrate and the metal trace layer as shown in fig. Investigation of graphene based miniaturized terahertz. Performance enhancement of patch antenna in terahertz. In this paper we used graphene material as a patch and silicon dioxide as a substrate material with a thickness of 1. This leads to a combination of the ultra high sensitivity of graphene with the exquisite selectivity of the molecular imprinting technique mit. The surface impedance of graphene can be controlled by changing the applied bias voltage, thereby controlling the input impedance of the antenna. Metallic and graphene based nano antennas dmitry n. The dimensions of antenna can be found in the hfss simulation file.
The antenna is used in both transmitting and receiving parts to. Antenna enhanced graphene thz emitter and detector jiayue tong1, martin muthee2, shaoyu chen1. What are the properties i should assign to a material in hfss to design a graphene patch antenna. Graphenebased patch antenna tunable in the three atmospheric. A graphene microstrip patch antenna is designed to operate in the three bands of the atmospheric windows promising for the future wireless communications. Graphene pvdf films were prepared using solvent casting process. When the shape of the graphene patch is square l g w g and the size is modified, the two effects discussed above tend to compensate.
Antenna enhanced graphene thz emitter and detector arxiv. A microstrip patch antenna manufactured with flexible graphenebased conducting material sayeed z. A prototype antenna operating at the frequency of 300ghz. Apr 25, 2019 the chemical sensor is composed of a layer of graphene transduction layer with a molecular imprinting polymer mip layer sensor on top. Grapheneantenna sandwich photodetector nano letters. Design printed circuit board pcb antennas with antenna toolbox by specifying arbitrary metaldielectric layers, solid feedvia models, and connector types. Graphene microstrip patch ultrawide band antennas for thz. Performance enhancement of patch antenna in terahertz region. In a previous work, a patch microstrip antenna for 600 ghz with both copper and graphene has been investigated using the simulator ansyshfss. Resonant frequency of the antenna 10ghz relative permittivity of the substrate 2. Pdf graphenebased patch antenna tunable in the three. Define the geometric shape of your metal structures or, to further speed up the design process, start from the antenna catalogue or from a photo of an existing antenna. To determine the width w, the microstrip patch antenna calculator was used to provide an initial.
The hfss antenna course explores antenna related hfss topics such as radiating boundaries, including how well they absorb energy from different angles, and hybrid regions which connect different antenna simulations together. Graphene brings advantages, such as the miniaturisation of unit elements due to intrinsic plasmonic resonances, tunable e conductivity, and ohmic losses which are sufficiently low to guarantee smooth phase tunability efor thz frequencies 2. What are the properties i should assign to a material in hfss to. Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and nearinfrared photons into electrons with an 800% enhancement of the photocurrent relative to the antennaless graphene device. Jun 09, 2017 if the subtract button is grayedout, than you should probably not yet selected any 3d model entities for the function to work. How do we assign graphene material to patch in hfss. Further the radiation efficiency for graphene based arc truncated square patch antenna on silicon dioxide substrate is determined as a function of frequency for operating frequency band and has been observed to be more than 90% at respective resonant frequencies. 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. Truncations in the antenna introduce co polarization and cross polarization. Consequently, in order to dynamically control thz antenna radiation, a graphene reflectarray is proposed. The goal of this paper is to explore the effects of two dimensional photonic band gap pbg crystals substrate on the performance of a graphene based triangular nano patch antenna in terahertz region thz. Proceedings of international conference on electrical and. The graphene antenna silicon lens system is also employed for thz detection.
How do you get accurate results with hfss for graphene simulation. Gmpa a comparative study of graphene based patch for. Depending on the edge shapes of structure obtained. A triple band flexible antenna using multi layer graphene patch 397 22 fig. The metal patch is a square with the dimensions lgwg1. There are previous reports about such antenna with a metal resonator see 7 and the reference herein. It is shown that changing the graphene material parameters such as chemical potential and relaxation time can influence radiation characteristics. Gain, directivity and radiation efficiency of the proposed antennas are compared with conventional transparent patch antennas and graphene based nontransparent antennas. Later fabrication of antenna was carried out with graphene pvdf films as conducting patch deposited on bakelite substrate and copper as ground plane. As a result, the radiation frequency of these antennas can bealsotwo ordersofmagnitudelower. Introduction the main objective of communication systems is to transmit information bearing signals from transmitter to the receiver via communication channel. The 2x2 patch array antenna is simulated using ansoft hfss.
The antenna is modeled and simulated using finite element method fem based high frequency structure simulator hfss simulation software using different substrate materials with properties as tabulated in table 1. Oct 10, 2018 hi, simply select the object by clicking on it or by using o key from the keyboard. You can find the values for graphene material in standard research papers and journals. Jan 28, 2016 the present study proposes to investigate the properties of graphene based nano patch antenna considering the semiinfinite, geometries of the graphene attaining zigzag and armchair structures. Mar 07, 2016 analysis and design of microstrip square patch antenna using hfss simulation tool. Go to add material and insert major properties of your material like dielectric permittivity, permeability and tangent loss factor. The optimization of a circular graphene microstrip patch antenna on silicon with an optimized return loss of. Thz nanoarray antenna based on a monolayer reflector. Hfss high frequency structure simulator to simulate the performance of.
Home browse by title periodicals journal of computational electronics vol. Its the final year presentation at 75% of its full flow. Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line. Graphene offers a new approach to thz communications due to its ability to support the propagation of spp waves in the thz frequency band, and. The double patch antenna that connects the graphene at thz also serves as the source and drain electrodes for the graphene transistor.