Reconfigurable e-shaped patch antennas

The antenna is symmetrical with respect to the longitudinal direction. Wideband to concurrent triband frequency reconfigurable. In this communication, a novel simple design for a circularly polarized reconfigurable antenna with wideband. 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. Polarization reconfigurable patch antenna for wireless. Reconfigurable antennas synthesis lectures on antennas. Numerical simulations and experiments have been shown to be in agreement, and both demonstrate that the frequency response of the antenna arrays can be efficiently. Abstractreconfigurable antennas offer attractive potential solutions to solve the challenging antenna problems related to cognitive radio systems using the. Eshaped patch antennas for highspeed wireless networks. Smart miniaturized widebandmultiband and reconfigurable. These antennas, however, require complex feeding networks. Zerothorder resonance patch antenna 5 has negative gain which is not desirable. A pattern reconfigurable is designed and its structure is illustrated in figure 1, the closeups shown in figure 1 b are the rf mems switch and its dc actuating circuit. Microstrip antennas are smaller in size and operates at microwave frequencies.

Optically controlled reconfigurable antenna array based on e. A new double lshaped multiband patch antenna on a polymer. This paper discusses the potential of e shaped patches to be used in reconfigurable antennas. The patch elements, printed on fr4 substrates with a common ground plane, are switched with a. Equivalent electrical lumped component modeling of e.

Dec 01, 2015 by introducing the slots in the rectangular patch, the distribution of the current is similar to the e shaped patch current flows as shown in fig. A polarization reconfigurable eshaped patch antenna with wideband performance is proposed in this communication. Mems reconfigurable optimized eshaped patch antenna. This paper discusses the potential of eshaped patches to be used in reconfigurable antennas. Simple reconfigurable circularly polarized antenna at three bands. Reconfigurable antennas offer attractive potential solutions to solve the challenging antenna problems related to cognitive radio systems using the ability to. It is shown that the application of a pifa configuration to d. An application of these features to reconfigurable.

Antennas using patches as constitutive elements in an array are also possible. This work presents the development of optically controlled reconfigurable antenna arrays. Design of widebanddualband eshaped patch antennas with the transmission line mode theory, ieee transactions. It is based on the popular e shaped patch antenna with two rf pin diodes. They are based on two patch elements with eshaped slots, a printed probe, and a photoconductive switch made from. Pattern reconfigurable backtoback microstrip patch antenna. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a. To this end, reconfigurable cp antennas have been reported extensively in the literature, using variety of structures such as crossed dipole 2,3, patch 4 5678, radiating arms 9 and. Band reconfigurable multi port satellite antenna for c and ku. A new double lshaped multiband patch antenna on a polymer resin material ubstrate. The reconfigurable eshaped patch antenna is used as a case study in this letter, and some issues when using metallic lines in this type of antenna are also presented.

Keywordsmicrostrip patch antenna,e shape patch antenna,feeding. Stateofart wireless communication industry requires consistent and reconfigurable antennas. The frequencies of the e shaped antenna toggling between ieee 802. The antenna is a modified form of the popular e shaped patch, used to. It allows switching between right hand circular polarization rhcp and left hand circular polarization lhcp. The antenna, containing a semicircular slot, was compact in size and had a good axial ratio and. The most common type of microstrip antenna is the patch antenna.

A patch antenna is a narrowband, widebeam antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, such as a printed circuit board, with a continuous metal layer bonded to the opposite side. E shaped 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. 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. This paper represents an e shaped microstrip patch antenna for multiband operations in ku band. It is shown that the application of a pifa configuration to dualband e shaped patches gives the freedom of independently tuning two resonances in a very wide frequency range, without affecting the antenna general structure and external dimensions. Thus, the concept of e shaped patch antenna is applied. Design of reconfigurable microstrip patch antenna with eshaped. Design of reconfigurable dualband eshaped microstrip. Figure 4b illustrates the implementation and bias lines of the.

A compact eshaped antenna with cshaped slots and a back. Frequency reconfigurable wideband eshaped patch antenna. The frequency reconfiguration is achieved by using a pair of pin diodes in the. Eshaped patch antenna with reconfigurable circular. This paper presents the design of a frequency reconfigurable wideband eshaped patch antenna using particle swarm optimization. In this communication, a novel simple design for a circularly polarized reconfigurable antenna with wideband and symmetrical performance is proposed. The article proposes reconfigurable eshaped patch antenna using pin diode to switch the antenna between two frequency states. The antenna is capable of efficiently switching both the. Eshaped patch antenna how is eshaped patch antenna. In the proposed work an experimental design of microstrip patch antenna has been developed to study the various parameters controlling the performance of the antenna. Polarization reconfigurable circular patch antenna with a cshaped slot is proposed in this communication. Mems reconfigurable optimized eshaped patch antenna design for cognitive radio abstract.

The antenna, containing a semicircular slot, was compact in size and had a good axial ratio and frequency response. Pdf a novel compact size of reconfigurable eshaped microstrip single patch antenna was designed and analyzed for dualband at 3. The current distribution of an eshaped patch antenna in state 3 is shown in fig. Narrow bandwidth 5 reconfigurable radiator or feeding network the maximum bandwidth reconfigurable patch. Rahmatsamii journal using thick substrates and capacitive probe compensation to enhance the bandwidth of traditional cp patch antennas by j. A patch antenna is a type of radio antenna with a low profile, which can be mounted on a flat surface. Abstract we present the design of a triband eshaped printed antenna with c. A polarization reconfigurable patch antenna with loop slots on the ground plane ieee antennas and wireless propagation letters 2012 11 69 72 2s2. Eshaped patch antenna how is eshaped patch antenna abbreviated. Eshaped patch antenna with reconfigurable circular polarization for wireless applications ahmed khidre, kaifong lee, fan yang, and atef elsherbeni center of applied electromagnetic systems. Design of reconfigurable dualband eshaped microstrip patch. It provides better efficiency and better radiation and large operating bandwidth.

A circularpolarization reconfigurable meng shaped patch. Reconfigurable patch antennas there are three main kinds of reconfigurable patch antennas. The antenna is capable of switching its polarization. E shaped patch antenna becomes attractive for wideband polarization agile designs. Design of ultrawide band reconfigurable micro strip antennas. Various design for rectangular microstrip patch antenna, 1x1, 1x2, 2x2, 1x4, 2x4 and 4x4 rectangular. Radiation pattern anomalies in the broadband cp reconfigurable eshaped patch antenna by j.

An eshaped microstrip patch antenna for reconfigurable dualband. The antenna structure comprises a modified e and hammer shaped patch, in which e and hammer shaped patch is for c and ku band applications respectively. Reconfigurable eshaped patch antennas ieee conference. This paper proposes a radiating pattern reconfigurable antenna by employing rf microelectromechanical systems rf mems switches. Optically controlled reconfigurable antenna array based on. This cited by count includes citations to the following articles in scholar. This paper proposes a novel wideband to concurrent triband frequency reconfigurable microstrip antenna.

Introduction 1patch antenna is a type of radio antenna with a low profile, which can mounted on a flat. Both ring and ushaped slot antenna 6,7 and eshaped patch. The patch antenna with adjustable air gap discussed in part 1 is an example of a frequency reconfigurable antenna, which was the first problem we worked on. Youngje, investigation into the polarization of asymmetricalfeed triangular microruban antennas and its application to reconfigurable antennas, ieee transactions on antennas and propagation, vol. By changing the rf mems switches operating modes, the proposed antenna can switch among three radiating. The frequency reconfiguration is achieved by using a pair of pin diodes in the antenna feed line to switch the antenna either in wideband mode or in concurrent triband mode. In this paper, a novel frequency reconfigurable e shaped patch design is proposed for possible applications in cognitive radio systems. A frequency reconfigurable printed microstripfed patch antenna is proposed here. Design of ultrawide band reconfigurable micro strip. In this paper, we introduce a reconfigurable artistic patch antenna with unidirectional circularpolarization cp radiation. Jerzy guterman et al 2 have designed a reconfigurable e shaped patch antennas using a rf mems switches for pifa application. In this thesis, developments of rectangular microstrip patch antenna to have circular polarization agility with wideband performance, for wireless applications are presented. Simple reconfigurable circularly polarized antenna at.

A microstrip patch antenna for optimum return loss, gain, directivity, efficiency and radiated power has been developed. Mems reconfigurable optimized e shaped patch antenna design for cognitive radio h rajagopalan, jm kovitz, y rahmatsamii ieee transactions on antennas and propagation 62 3, 10561064, 20. Thus, the implementation of a pattern reconfigurable antenna with a low profile can alleviate those constraints. Mems reconfigurable optimized eshaped patch antenna design for cognitive radio by h. Polarization reconfigurable square patch with shorting posts. Circular polarization reconfigurable wideband eshaped. Reconfigurable orthogonal polarizations were achieved by.

Design of widebanddualband e shaped patch antennas with the transmission line mode theory. Introduction 1patch antenna is a type of radio antenna with a low profile, which can mounted on a flat surface. This paper presents the design of a frequency reconfigurable wideband e shaped patch antenna using particle swarm optimization. The cp reconfigurable antenna is divided into three layers, composed of an annular radiating patch, ring slot, and. The antenna is capable of switching its polarization from right hand circular polarization rhcp to left hand circular polarization lhcp and vice versa. Reconfigurable antennas offer attractive potential solutions to solve the challenging antenna problems related to cognitive radio systems using the ability to switch patterns, frequency, and polarization. A polarization reconfigurable e shaped patch antenna with wideband performance is proposed in this communication. Design, analysis, and verification of kaband pattern. Advantages and disadvantages of microstrip patch antenna.

Reconfigurable antennas offer attractive potential solutions to solve the challenging antenna problems related to cognitive radio systems using the ability to switch patterns. Rahmatsamii journal understanding the radiation pattern anomalies in the broadband cp reconfigurable e shaped patch by j. Design of mems reconfigurable eshaped patch antenna. It is shown that the application of a pifa configuration to dualband eshaped patches gives the freedom of independently tuning two resonances in a very wide frequency range, without affecting the antenna general structure and external dimensions. Eshaped microstrip patch antenna, frequency reconfigurable, rf, pin diode, vswr. Rahmatsamii journal using thick substrates and capacitive. A circularpolarization reconfigurable meng shaped patch antenna. A novel compact size of reconfigurable e shaped microstrip single patch antenna was designed and analyzed for dualband at 3. A new polarizationreconfigurable antenna for 5g applications. Patch antenna with switchable slots pass for circular polarization diversity. To achieve these needs, the first solution is to design antennas with reconfigurable polarization and wideband characteristics 1,2,3,4,5,6,7,8.

Abstracta reconfigurable wideband and multiband cslot patch antenna with dualpatch elements is proposed and studied. The designed antenna is fed by dual vertical branches at the output port of the ron. The cp reconfigurable antenna is divided into three layers, composed of an annular radiating patch, ring slot, and reconfigurable orthogonal network ron. May 09, 2014 a new double l shaped multiband patch antenna on a polymer resin material ubstrate. A novel compact size of reconfigurable eshaped microstrip single patch antenna was designed and analyzed for dualband at 3. Dual ushape microstrip patch antenna design for wimax applications. By adjusting the bias voltage of the pin switch loaded on the. A backtoback microstrip patch antenna with a switchable pattern is proposed for wlan applications.

The slot dimension of patch can be adjusted to provide a desired impedance matching performance 1. Polarization reconfigurable microstrip patch antennas. On the use of slots in the design of patch antennas. Mems reconfigurable optimized eshaped patch antenna design for cognitive radio h rajagopalan, jm kovitz, y rahmatsamii ieee transactions on antennas and propagation 62 3, 10561064, 20. A simultaneous dualband frequency reconfigurable eshaped microstrip patch antenna is proposed in this paper. Mems reconfigurable optimized e shaped patch antenna design for cognitive radio by h. In 4, eshaped patch antenna using two slots is introduced to design an antenna resonating at two resonant frequencies. It is shown that the application of a pifa configuration to dualband eshaped patches gives the freedom.

Patch antennas ucla antenna research, analysis, and. Jerzy guterman et al 2 have designed a reconfigurable eshaped patch antennas using a rf mems switches for pifa application. Reconfigurable antennas ucla antenna research, analysis. Band reconfigurable multi port satellite antenna for c and. The antenna has a low profile and small size of 4 mm. Two pin diode switches controlled the reconfiguration for both the righthand and lefthand circular polarization. Challenge for circular polarization reconfigurable antennas. Circular polarization reconfigurable wideband eshaped patch. The antenna is capable of efficiently switching both the frequency bands at the same time without the need of any external matching network.

Circular polarization wideband eshaped patch antenna for. Reconfigurable microstrip patch antennas microstrip. A reconfigurable multiband antenna for rfid and gps. The patch is generally made up of a conducting material such as copper or gold and can take any. When the effects around the slots are studied the amplitude of currents varies with low resonant frequencies and high resonant frequency. Reconfigurable wideband circulalry polarized microstrip. Frequencyreconfigurable eshaped microstrip patch antenna. Design and analysis of a siliconbased pattern reconfigurable. To date, many pattern reconfigurable antennas 1,2,3,4,5 have been developed, and reconfigurable antennas are commonly implemented using variodes 6,7 and pin diodes 1,2. Array antennas adopted a wilkinson power divider and a. In this paper, a novel band reconfigurable multi port satellite antenna for c and ku band applications is presented as a new band switching mimo patch antenna. Polarization reconfigurable capability has been successfully added to a conventional eshaped patch antenna. International journal of science, engineering and technology research 2. Array antennas adopted a wilkinson power divider and a power divider with a phase shifter to obtain a wide axialratio bandwidth arbw.

A cpw fed eshaped reconfigurable antenna with frequency. Frequency reconfigurable eshaped patch antenna for. A novel circular polarization cp reconfigurable microstrip antenna is presented. In another work,the shape is designed by forming cutting lines on the sides and obtained more. As shown, a pair of mems switches are employed across the eshaped patch slots. Naga prasanna et al design of ultrawide band reconfigurable micro strip antennas for cognitive radio applications 568 international journal of computer systems, issn23941065, vol. Eshaped patch antenna becomes attractive for wideband polarization agile designs. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane. Mems reconfigurable optimized eshaped patch antenna design. Rahmatsamii conference practical and costeffective bias line implementations for. Frequency reconfigurable patch antenna with bias tee for. First, a new technique to achieve circularly polarized cp probe feed singlelayer microstrip patch antenna with wideband characteristics is proposed. The antenna consists of a microstrip feed connected to a circular radiating element divided into three patches which are.

Forum for electromagnetic research methods and application. 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. As the patch antennas are fed along centerline to symmetry, it minimizes excitation of other undesired modes. Polarization reconfigurable circular patch antenna with a. The frequencies of the eshaped antenna toggling between ieee. The design has been made on low cost material of fr4 substrate having dielectric constant of 4. Polarization reconfigurable patch antenna for wireless sensor.

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