Reconfigurable circular patch antennas

A circularpolarization reconfigurable mengshaped patch. 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. Section 2 demonstrates the design principle and the configurations of two kinds of polarization reconfigurable patch antennas with the perturbation elements on the patch and on the ground. We have presented a mimo system, equipped with mems reconfigurable circular patch antennas, that allows to select the antenna configuration at the receiver without the need for estimating the wireless channel for each configuration of the reconfigurable multi element antenna. A symmetrical reconfigurable multipolarization circular. These microstrip antennas can alter their polarization characteristics, that is why they are sometimes called. Frequency reconfigurable antenna latest communication systems demand transmitters and receivers with multiband operation, as a result different techniques for achieving frequency reconfigurability have been proposed in system where weight and area are critical issue. Multipolarizationreconfigurable circular patch antenna with. A frequency reconfigurable circular patch antenna using pindiodes is proposed in this paper. Through international collaboration with politechnico di milano in italy, dwsl has designed and demonstrated pattern diversitybased reconfigurable length dipole antennas, pattern diversitybased reconfigurable radiuspolarization circular patch antennas, as well as leveraged new design techniques in metamaterial transmission line theory to. Reconfigurable circular ring patch antenna for uwb and cognitive radio applications abstract. The proposed antenna consists of a squarering resonator, two stubs with a shorting via, and two pin diodes. The two resonance modes of this antenna, respectively, utilized the tm 10 and tm 30 modes of the square patch antenna. These reconfigurable antennas with concise structure are easy to be manufactured and can be used in various wireless communication systems.

The antenna is capable of switching its polarization from right hand circular polarization. Reconfigurable design of circular patch antenna the conventional circular patch structure was modified by introducing a circular slot that is shown in the fig. Oct 05, 2016 modeling of pin diode in hfss and frequency reconfigurable antenna. In order to switch the cp orientation, the current flow direction of the patch is reconfigured via the pin diodes mounted on the slot. Design of a high directive gain reconfigurable circular patch. May 20, 2019 the measured broadside gains within the axial ratio bandwidth were 1. Reconfigurable antenna used in the field of wireless. Eshaped patch antenna with reconfigurable circular. Two port reconfigurable circular patch antenna for mimo systems. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner.

Barbosa kortright university of puerto rico, mayaguez campus mayaguez, pr 00680 miguel. A cpwfed reconfigurable patch antenna with circular. The designed antenna is fed by dual vertical branches at the output port of the ron. Reconfigurable wideband circularly polarized stacked square patch antenna for cognitive radios miguel a. Pin diode can be used to achieve reconfigurability by placing it within the slot. The novel geometry composed of a chinese character meng shaped. Frequency reconfigurable patch antenna with bias tee for. Polarization reconfigurable circular patch antenna with a cshaped slot is proposed in this communication.

Two port reconfigurable circular patch antenna for mimo. Reconfigurable patch slot antenna for circular polarization. Comparison between rectangular and triangular patch antennas. Based on the reconfiguration techniques frequency reconfigurable antennas can be classified into four categories as below.

A novel circular polarization cp reconfigurable microstrip antenna is presented. Reconfigurable patch antennas with fourpolarization. A reconfigurable stacked microstrip patch antenna for. In this paper we present a two port pattern reconfigurable circular patch antenna rcpa that can be varied in radius through pin diode switches. A fully symmetrical sixpolarization circular patch antenna is proposed. The physical structure of the antenna is designed in such a way that only through the graphenes fermi energy level, righthand, lefthand circular polarization, and linear polarization can be obtained. Reconfigurable wideband circularly polarized stacked square. It is demonstrated that by introducing a reconfigurable cshaped slot in a circular patch antenna, the polarization of the radiation of the antenna, operating either in a linearly or circularly polarized mode, can be switched effectively. Polarization reconfigurable circular patch antenna. Simulated results have shown that this antenna selection approach is an effective technique suitable for efficiently using pattern reconfigurable antennas in mimo systems. A compact square patch antenna with reconfigurable circular polarization cp at 2. In this work, a new ultra wide band circular ring patch antenna is proposed for spectral sensing application as well as the transmission and reception of radiofrequency. A reconfigurable patch antenna with independent frequency.

The inner diameter and outer diameter of circular slot are 2mm and 4mm respectively is inserted in the circular patch. A symmetrical reconfigurable multipolarization circular patch. The antenna consists of a microstrip feed connected to a circular radiating element divided into three patches which are connected through silicon pin diodes used as switches for achieving reconfigurability as being cheap and easy to implement having high switching capabilities. Introduction microstrip patch antennas are more popularly used now a days due to its various advantages such as light weight, less volume. Researcharticle frequency reconfigurable circular patch antenna with an arcshaped slot ground controlled by pin diodes yaochen,1 longfangye,1 jianliangzhuo,1 yanhuiliu,1 liangzhang,1. By adjusting the bias voltage of the pin switch loaded.

Reconfigurable patch antennas with fourpolarization states. Reconfigurable antennas differ from smart antennas because the reconfiguration mechanism lies inside the antenna. A technique for antenna configuration selection for. Circular polarization is generated by an arcshaped slot on the ground plane. Mimo communication system with reconfigurable circular. Now, following the equations above i should have a. Keywords patch antennas, reconfigurable antenna, microswitches, electrowettingondielectric. Frequency reconfigurable circular patch antenna with an arc.

Reconfigurable circular microstrip patch antenna with. Different modes of the circular patch antenna can be excited by varying its radius with pin diode switches. A miniature reconfigurable circularly polarized antenna using. Compared to other reconfigurable multiband cp antennas, the proposed design is the first work to achieve a reconfigurable polarization at three distinct bands at a low fabrication cost by using only two diodes. Analysis and design of circular microstrip patch antenna at 5. Polarization reconfigurable microstrip patch antenna for. In this paper, we introduce a reconfigurable artistic patch antenna with unidirectional circularpolarization cp radiation. Reconfigurable antenna can be classified into four types such as frequency, polarization, radiation and multiple reconfigurable antennas 1. Almost all the circular polarization reconfigurable antennas have made use of some kind of a switching mechanism. A compact dual circular patch pattern reconfigurable antenna. In 7, by changing the onoff states of the two pin diodes inserted in the gap between the rhombusshaped patch and the yshaped feed line, which helps the antenna to become an electrically asymmetrical structure, 2% 3db axial.

In this paper we demonstrate a novel reconfigurable multiport circular patch antenna that improves the performance of a mimo wireless communications system through pattern diversity. New radiation patternreconfigurable 60ghz antenna for 5g. For the novel frequency and pattern reconfigurable yagiuda patch antenna detailed in. Shashiprabha published on 20160707 download full article with reference data and citations. Now, following the equations above i should have a 9.

Jun 02, 2016 singlefeed circular microstrip patch antenna with diagonal slot for polarization reconfigurability has been proposed. Ieee transactions on antennas and propagation to appear 1 abstractin this paper, a compact pattern reconfigurable dual antenna array is designed at 2. Study of frequency and polarization reconfigurable on square. This letter introduces a multipolarizationreconfigurable circular patch antenna with eight lshaped probes. Multipolarizationreconfigurable circular patch antenna with lshaped probes. The antenna, containing a semicircular slot, was compact in size and had a good axial ratio and frequency response. Two pin diode switches controlled the reconfiguration for both the righthand and lefthand circular polarization. Download citation reconfiguration of circular microstrip patch antenna for wireless applications reconfigurable antennas provide a. Singlefeed circular microstrip patch antenna with diagonal slot for polarization reconfigurability has been proposed.

A symmetrical reconfigurable multipolarization circular patch antenna abstract. 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. This paper presents a simple and compact coplanar waveguide cpwfed circular shaped reconfigurable patch antenna with a switchable circular polarization cp sense. By controlling the biased voltage of the pin diodes, the polarization of the antenna can be reconfigured between three states. A detailed study on reconfigurable circular patch antenna. Reconfigurable multiband patch antenna written by shakhi patle, mrs. The basic unit of the antenna is based on the mathematical model of a circular patch antenna design. Study of frequency and polarization reconfigurable on. Abstracta frequency and polarization reconfigurable patch antenna is proposed in this letter. Reconfigurable antenna provides a single antenna that can be used for multiple applications. 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. Reconfigurable antenna used in the field of wireless communication and space applications. Upon toggling the switch between on and off states, the antenna can be reconfigured 47. The antenna presented in 6 is shown in figure 4, it consists of a radiating circular patch with a slot below the circular patch.

The top circular patch and the arcshaped slot on the ground plane of this arcshaped slot patch antenna are excited by the coaxial back feed to achieve antenna radiation. Above concept is used in paper 6 and 4 to obtain multiband operation. The circular patch is cut at the ends vertically and switches are introduced to connect the patch ends. The antenna has a simple structure, which comprises of a radiating circular patch, embedded with two switches pin diode and a pair of equal length slit on the top metal layer. Polarization reconfigurable circular patch antenna with a. Patch antenna for wireless applications ahmed khidre, kaifong lee, fan yang, and atef z. Simulations have been conducted using advanced design systems ads software. A reconfigurable circular patch antenna with switchable. In, a singlefed dualband polarization reconfigurable antenna was first proposed for wlan applications. Simple reconfigurable circularly polarized antenna at three bands. The cp reconfigurable antenna is divided into three layers, composed of an annular radiating patch, ring slot, and reconfigurable orthogonal network ron. The feedline is connected to the patch element by a 10 mil via designed to have 0. Three switches metal strips are used as switch are placed in the slot.

Dualband reconfigurable antenna for polarization diversity. The designed antenna operates at the expected 60 ghz 5g frequency band with a central coaxial probe feed. This paper presented a new circular polarization reconfigurable antenna for 5g wireless communications. Multipolarizationreconfigurable circular patch antenna. Kishore kumar department of electronics and communications national institute of technology, tiruchirappalli620 015, tamil nadu, india. The stub is positioned symmetrically to the left and right of the squarering resonator, and the squarering antenna connected to one of two stubs has a dualband resonance. Circular polarization reconfigurable antennas have drawn lots of attention in recent years, since they have both the merits of circular polarization antenna capable of mitigating the multipath effect and flexibility in the orientation of the transmitting and receiving antennas, and reconfigurable antenna satisfy the requirements for increased functionality within a. Assuming that the two boards are isolated ive designed the patch on the 2 metal 1 substrate stack. Reconfigurable patch slot antenna for circular polarization diversity dr. In this paper, a compact frequency reconfigurable circular patch antenna with an arcshaped slot loaded in the ground layer is proposed for multiband wireless. Small microstrip patch antenna for future 5g application in rf. Frequency reconfigurable circular patch antenna with an. A circularpolarization reconfigurable meng shaped patch antenna. The antenna consists of a circular patch surrounded by four sectorshaped patches.

The reconfigurable antennas structure consists of a circular patch embedded by two slots with four pin diodes mounted on them. This paper proposes a dualband reconfigurable squarering antenna with a polarization diversity property. Ali et al reconfigurable microstrip patch antenna for satellite and terrestrial links 427 fig. Frequency reconfigurable microstrip circular patch antenna. In this paper, a novel polarization and frequency reconfigurable microstrip patch antenna which can switch between vertical and horizontal linear polarizations, left hand and right hand circular polarizations at two wlan frequencies is presented. The proposed frequency reconfigurable antenna is based on backfed circular patch antenna with an arcshaped slot length of 30. In this paper, a novel single feed frequency and polarization reconfigurable microstrip patch antenna is presented. Reconfigurable microstrip patch antenna in frequency and. Reconfigurable wideband circularly polarized stacked. In this paper, we introduce a reconfigurable artistic patch antenna with unidirectional circular polarization cp radiation.

Simulated results have shown that this antenna selection approach is an effective technique suitable for efficiently using pattern reconfigurable antennas. Mimo communication system with reconfigurable circular patch. Reconfigurable circular patch antenna the rcpa, first introduced by the authors in 3, consists of pin diodes, located radially on the antenna structure, that can be turned on and off to achieve a circular patch with two different radii. Reconfigurable circular ring patch antenna for uwb and. This antenna is coaxialfed at center with 12 pin diodes placed across a circular ring slot on the patch. Introduction polarization reconfigurable microstrip antennas have received much interest in the last decade. A polarizationreconfigurable high gain microstrip antenna.

Polarization controling approach in reconfigurable microstrip. This antenna mainly comprises of a corner truncated square patch with a rectangular ring slot, eight pin diodes and six conductive pads. A technique for antenna configuration selection for reconfigurable circular patch arrays abstract. In the proposed design, a circular patch antenna with circular slot using two pin diodes at the centre. We have presented a mimo system, equipped with mems reconfigurable circular patch antennas, that allows to select the antenna configuration at the receiver without the need for estimating the. In this work, a new ultra wide band circular ring patch antenna is proposed for spectral sensing application as well as the transmission and reception of radiofrequency in cognitive radio systems. Eshaped patch antenna with reconfigurable circular polarization for wireless applications ahmed khidre, kaifong lee, fan yang, and atef elsherbeni center of applied electromagnetic systems research caesr department of electrical engineering university of mississippi, university, ms 386771848, usa. In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism that enable the intentional redistribution of the rf currents over the antenna surface and produce reversible modifications of its properties. The optimal dimensions of the reconfigurable antenna are. This antenna consists of a circular patch with an arcshaped slot. Design rectangular patch antenna using hfss part 1. In this paper, the performance of graphene in patch antennas is investigated in order to control the antenna polarization. A quadpolarization and frequency reconfigurable square. Pattern reconfigurable antenna array for mimo application.

The proposed work deals with the design of lowprofile, reconfigurable, tunable multiband patch antenna for different types of wireless applications such as wifi, wimax, bluetooth,3g within a microwave l, s, c, and x frequency bands in electromagnetic spectrum, cognitive radio applications. Introduction reconfigurable antennas with adaptable frequency, pattern, and polarization offer flexibility and size reduction for wireless systems that must increasingly execute multiple missions. A new quadri polarization reconfigurable circular patch antenna. A new polarizationreconfigurable antenna for 5g applications. Multipolarizationreconfigurable circular patch antenna with l. In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism that enable the intentional redistribution of the rf currents over the antenna surface and produce reversible modifications. Modeling of pin diode in hfss and frequency reconfigurable antenna. Reconfigurable antennas, polarization agility, rf switches, circular polarization 1. By adopting the lprobe feeding structure, the reported circular patch antenna is compact, simple, and lowprofile. A frequency reconfigurable printed microstripfed patch antenna is proposed here. Reconfigurable rhombus shaped patch antenna with yshaped feed for polarization diversity 10 is proposed by modes on rhombus shape patch antenna in which the antenna become asymmetrical structure. Frequency reconfigurable circular patch antenna request pdf. Mimo communication system with reconfigurable circular patch antennas. Aelectrically reconfigurable antennas in case of electrically reconfigurable antenna, radiating structure andor radiating edges of antenna are.

The performance achievable with such reconfigurable antennas in a 2. Due to the circular symmetry, in theory all these polarizations share the same characteristics. Comparison with regular antennas, reconfigurable antennas have many advantages. As a result of this study, two kinds of novel reconfigurable patch antennas have been designed and validated at the expected frequency bands. Reconfigurable beam steering using circular disc microstrip patch antenna with a ring slot is proposed. By turning these pin diodes on or off, six linear polarizations at a 30 interval can be produced. A new probefed patch antenna polarization reconfiguration is presented in this proposed work. A circularpolarization reconfigurable meng shaped patch. Hfss, reconfigurable microstrip patch antenna rmpa, diodes, frequency reconfigurable, circular polarization, reflection coefficient, vswr, axial ratio, network analyzer. Reconfigurable circularly polarized microstrip antenna on. Rectangular and circular patch antennas are the most commonly used microstrip patch antennas.

Although to optimize the large size of the structure, an innovative way of introducing slots is presented that effectively reduces the overall size. Polarization reconfigurable circular patch antenna with a c. Reconfiguration of circular microstrip patch antenna for wireless. Sep 01, 20 these reconfigurable antennas with concise structure are easy to be manufactured and can be used in various wireless communication systems. Abstract we have presented a mimo system, equipped with mems reconfigurable circular patch antennas, that allows to select the antenna configuration at the. P, india abstract here we made an attempt to maximize the gain of microstrip patch antenna. Abstractin this paper a study of reconfigurable circular patch antenna is discussed. It form lhcp in which electric current rotate clockwise and rhcp in which electric current rotate in counter clockwise when one. Frequency reconfigurable microstrip circular patch antenna for wireless devices ghanshyam singh, mithilesh kumar abstract in this paper, a frequency reconfigurable circular antenna design and development is proposed for wireless devices. This paper demonstrates a method that allows reconfigurable multi element antennas to select the antenna configuration at the receiver of a multiple input multiple output mimo communication system. Polarization reconfigurable circular patch antenna with fixed operating frequency. By adopting the lprobe feeding structure, the reported circular patch antenna is.