Antenna is simulated in high frequency structure simulator hfss version. Varactor loaded patch antenna the varactor diode equivalent circuit is an important part in simulation of reconfigurable antenna in order to get the similar results with measurement. An investigation of pattern and frequency reconfigurable microstrip. The simulated results give return loss lower than db and vswr below 2. The parameters evaluated were gain, beamwidth and return loss. It is one of several commercial tools used for antenna design, and the design of complex rf electronic circuit elements including filters, transmission lines, and packaging. Reconfigurable microstrip patch antenna using mems. Reconfigurable microstrip patch antenna in frequency and. Comments on wideband radiation reconfigurable microstrip. A new reconfigurable koch loop fractal antenna model has been proposed and its properties discussed using hfss software.
Solved find the input impedance of patch antenna in hfss. Reconfigurable patch antennas with fourpolarization. Reconfigurable microstrip fractal antenna design in ansys hfss using pin diode new design of microstrip patch antenna using pin diode. Reconfigurable microstrip fractal antenna design with line feeding. Polarization reconfigurable patch antennas with four polarization agility are investigated in this paper. The second antenna is a frequency reconfigurable dipole antenna that uses egain as a radiating element to change its resonance frequency by contracting and expanding the length of egain. Antenna design procedure the geometry of proposed switchable printed patch antenna is shown in figs. The antenna structure proposed have return loss better than 10db and vswr below 3. The proposed antenna design and performances are analyzed by using ansoft high frequency structure simulator hfss 4.
A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. This video covers the implementation of a 10 ghz rectangular patch antenna, with an inset feed in ansys hfss. Small rectangular patches have been inserted to act like switches to obtain reconfigurability. Two independent operating frequencies are used with the range of 2. Microstrip patch antenna using hfss ansys duration. The design and functional simulation of the proposed antenna structure is performed by using hfssv. Pdf design and analysis of frequency reconfigurable. Introduction in the field of wireless communications, a very important development is the integration of different. Comments on wideband radiation reconfigurable microstrip patch antenna loaded with two inverted uslots abstract. Reconfigurable integrated patch antenna for gband applications.
The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. For the novel frequency and pattern reconfigurable yagiuda patch antenna detailed in chapter 4, two slots have been used on driven element to achieve frequency and pattern reconfigurability, and two openend stubs have been used to adjust working frequency and. Hfss design of square patch antenna with slot duration. The frequency reconfigurable log periodic microstrip dipole array operated over c,x and ku bands has been designed and simulated by ansys hfss. Dual band reconfigurable pin diode based microstrip patch. Reconfigurable microstrip patch antenna using mems technology. Antenna projects using hfss electronics electrical projects. Polarization reconfigurable microstrip phased array.
The 2x2 patch array antenna is simulated using ansoft hfss. Ec 4th year shivanshu awasthi ec 4th year sarvesh kumar nishad ec 4th year novman asif ec 4th year. The patch version was figured using the first order koch loop. Nandhini 2 1assistant professor, department of electronis and communi cation engineering, m. In such setup, the line 1 terminated by a short circuit is utilized to establish the measurement reference plane, whereas the diode under test was. Design rectangular patch antenna using hfss part 1 youtube. Dual frequency microstrip patch antenna with reconfigurable impedance matching network. Frequency reconfigurable log periodic microstrip dipole. A novel design of a reconfigurable microstrip yagiuda antenna with continuous cp beam scanning is proposed. Design of reconfigurable microstrip patch antenna for wlan. Introduction the modern communication world requires portable devices with high performance. A selective frequency reconfigurable microstrip patch antenna using. By controlling the onoff states of the five pin diodes mounted on the arcshaped slot, the effective length of the arcshaped slot and the effective length of antennas current are changed, and accordingly six.
The proposed design consists of a single probe fed microstrip triangular, dielectric substrate with the thickness, 3. Design of dual frequency microstrip patch antenna since the resonant frequency of a microstrip patch antenna is largely dependent on the dimensions of. The accurate model of the chosen bar 151 pin diode is an essential information for the correct modelling of the reconfigurable antenna in hfss software. Introduction microstrip patch antennas are more popularly used now a days due to its various advantages such as light weight, less volume. Reconfigurable antenna and rf circuits using multilayer stretchable conductors by riaz ahmed liyakath a thesis submitted in partial fulfillment of the requirements for the degree of master of science in electrical engineering department of electrical engineering college of. The analysis of reconfigurable antenna using pin diode is done using the simulation performed on ansys hfss.
By introducing patches of koch loop shapes, the antenna with. Frequency reconfigurable triangular microstrip patch. The proposed antenna provides triple bands in which the bandwidth of 367mhz for 2. This section elaborates on the varactor diode that used in this antenna design using computer simulation technology cst and hfss ver. Upon toggling the switch between on and off states, the antenna can be reconfigured 47. Christodoulou, rfmems and its applications to microwave systems. Reconfigurable patch antenna for software defined radio. Design and analysis of a frequency reconfigurable microstrip.
For each case reflection coefficient should maintain less than 10 db throughout the operating frequency. Reconfigurable antennas containing multiple ports and multiple patches. Design of reconfigurable microstrip patch antenna f or wlan application biplab parida 1, abhishek kumar 2, janardan sahay 3 deptt. In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism such as rf switches, varactors, mechanical actuators or tunable materials that enable the intentional redistribution of the rf currents over the. Keywords frequency reconfigurable antenna, mobile antenna, yagi uda antenna, patch antenna component. Proposed antenna design a compact dual polarized reconfigurable patch antenna is proposed for lband applications. Kumarasamy college of engineeringautonomous,karur, tamil nadu, india. This paper presents a simple and compact coplanar waveguide cpwfed circularshaped reconfigurable patch antenna with a switchable circular polarization cp sense.
The antenna was designed and analyzed using ansoft hfss. Design of antenna the reconfigurable patch antenna can be designed using hfss software. Reconfigurable antenna and rf circuits using multilayer. A planar reconfigurable microstrip antenna is proposed by using rf mems switches. Reconfigurable microstrip patch antenna for frequency. The simulation results shows that the proposed antenna array can be successfully used as ultrawide band antenna over.
Hfss, reconfigurable microstrip patch antenna rmpa, diodes, frequency reconfigurable, circular polarization, reflection coefficient, vswr, axial ratio, network analyzer. Design and analysis of microsrtip square patch antenna under the kind guidance of. Antenna 1 has rectangular patch and antenna 2 has a slot and a pin diode between slotted areas of the rectangular patch. Reconfigurable patch antenna by rf mems switches abstract. Modeling of pin diode in hfss and frequency reconfigurable antenna. This is to certify that the project titled frequency reconfigurable microstrip patch antenna 1 carried out by name roll no. Theansoft hfss 14software is used to model and simulate the proposed antenna.
Reconfigurable antenna, switches, frequency ranges, microstrip patch i. Reconfigurable koch loop fractal antenna using rf switch. The acronym stands for high frequency structure simulator hfss. Ali et al reconfigurable microstrip patch antenna for satellite and terrestrial links 427 fig. Electronic beam scanning is attained with the aid of varactors and proper biasing network integrated into the parasitic patch. Find the input impedance of patch antenna in hfss 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 proposed antenna structure comprises a center patch antenna known as driven patch and two adjacent microstrip patches defined as wing patches. Design, analysis, and verification of kaband pattern reconfigurable patch antenna using. A reconfigurable stacked microstrip patch antenna for. This comment investigates some missing fundamental simulation and measurement results affecting the practical performance of the antenna presented in 1. The microstrip rectangular structure as shown in fig. Reconfigurable patch antenna by rf mems switches ieee. The dualfed antenna can operates on two orthogonal linear polarizations simultaneously and on two orthogonal circular polarizations alternatively by.
Reconfigurable high gain split ring resonator microstrip. The microstrip patch antenna model used for the numerical simulation in ansoft hfss is shown in fig. This antenna consists of rectangular patch etched with a. Varactor diode loaded reconfigurable patch antenna with. Abstract an idea of frequency reconfigurable patch antenna is introduced. To determine the width w, the microstrip patch antenna calculator was used to provide an initial. Reconfigurable patch antenna for software defined radio application 525 3 j. The third antenna is a polarization reconfigurable cross patch antenna that uses egain as a switch to alter its polarization. Reconfigurable integrated patch antenna for g band. Design and implementation of reconfigurable antenna. Keywords reconfigurable antenna, frequency diversity, patch antenna, switchable slot i. The center frequency will be approximately given by. Microstrip patch antenna, frequency reconfigurable antenna, return loss. In our case we used c slot patch with complementary split ring resonator microstrip patch.
Performance of dual frequency antenna from hfss a 8 ghz antenna b 10 ghz antenna. Design of frequency reconfigurable micro strip patch. The main aim is to compact size of antenna hence we use patch antenna. Design and analysis of frequency reconfigurable microstrip patch.
Frequency reconfigurable antenna for multistandard. The analysis is based on the antenna parameters such as. There are various types of slots available like c slot patch, h slot patch, s slot patch, l slot patch, u slot patch, v slot patch e slot patch etc. Design of frequency reconfigurable micro strip patch antenna for. Compact microstrip antenna with patternreconfigurable. The circular patch is cut at the ends vertically and switches are introduced to connect the patch ends. The frequency of operation of the patch antenna of figure 1 is determined by the length l. Design rectangular patch antenna using hfss part 1 duration. Introduction wireless communication and sensing systems have. In this paper, a compact frequency reconfigurable circular patch antenna with an arcshaped slot loaded in the ground layer is proposed for multiband wireless communication applications. The patch antennas provide advantage of light weight, less size, low fabrication cost, capable of dual and triple frequency observation. Abstract in this paper we propose a rectangular microstrip p atch antenna with inset fed which can operate at 2. Frequency reconfigurable circular patch antenna with an.