Jul 30, 2015 in this paper, a single layer asymmetric lslot loaded microstrip patch antenna for circular polarization is proposed. Comprehensive study of single feeding techniques on circularly. Design and fabrication of frequency reconfigurable and. They are the original type of microstrip antenna described by howell in 1972. Jun 02, 2016 single feed circular microstrip patch antenna with diagonal slot for polarization reconfigurability has been proposed. A new simple singlefeed method for circularly polarized ring antennas has been investigated. A wideband singlefeed crosseddipole antenna with reconfigurable polarization states among righthand circular polarization rhcp, lefthand circular polarization lhcp and four linear polarizations lp at 0lp, 90lp, 45lp and 5lp is proposed. A single feed wideband polarization reconfigurable magnetoelectric dipole antenna is presented in this letter. Reconfigurable patch antennas have drawn a lot of research interest for. Tejbir singh assistant professor, subharti university, meerut, u. A wideband polarization reconfigurable antenna with six. A simple patch antenna with an xslot constitutes the fundamental structure. Polarization reconfigurable wide band eshaped patch antenna for wireless applications, antennas and propagation, ieee transactions on, vol. Singlefeed circular microstrip patch antenna with diagonal slot for polarization reconfigurability has been proposed.
This antenna can be used in emerging reconfigurable wireless communication systems. Single feed reconfigurable circularly polarized microstrip patch antenna feeding with proximity coupled method 40 5. J reconfigurable microstrip patch antenna with switchable polarization. Circular microstrip reconfigurable antenna for frequency and polarization with feed configuration is presented in this paper. Quick summary of patch antenna quantity typical minimum maximum polarization linear radiation patten single broadside lobe gain dbi 7 5 8 performance bandwidth % 5 0. Single feed circular microstrip patch antenna with diagonal slot for polarization reconfigurability has been proposed. Abstract a varactor diode is placed on every slot to alter the current direction, which determines the polarization state. The polarization switching is realized with a 1to4 reconfigurable feeding network. A patch antenna is a type of radio antenna with a low profile, which can be mounted on a flat surface. Design and implementation of reconfigurable patch antennas for wireless communications fei he, m. Experimental and theoretical investigation show that. A polarization reconfigurable antenna 1011121415 16 171819202122provide a dominant modulation scheme such as the circular polarization modulation and allows the user to. This antenna has a simple structure, which consists of a radiating circular patch.
Its structure is simple and consists of a singlelayer singlefeed eshaped patch and two rf switches placed at appropriate locations in the slots. Pdf design of polarization reconfigurable antenna using. Three coaxial feed points are provided for three operational frequencies. Resume university college of engineering, osmania university. And a coupling slice instead of a resistive load is used as matching load of the microstrip ring for. Single feed lslot microstrip antenna for circular polarization. A microstrip patch antenna is attractive to get polarization switching.
A novel single feed reconfigurable circular microstrip patch antenna with polarization and pattern diversity have been proposed. Easily share your publications and get them in front of issuus. A broadband single feed circularly polarized patch antenna with wide beamwidth is presented. A microstrip patch antenna is an attractive candidate to provide reconfigurability with low profile, light weight, conformability, and easy fabrication properties 2. The proposed antenna consists of two pairs of bowtie dipoles, a pair of slim rectangle dipole and a metallic square reflector. This antenna mainly comprises of a corner truncated square patch with a rectangular ring slot, eight pin diodes and six conductive pads. Design of polarization diversity patch antenna based on a compact. A new design method for singlefeed circular polarization. A novel singlefeed design of a patch antenna with polarization reconfigurability is proposed in this paper. A novel singlefeed reconfigurable antenna for polarization and. The concept of the microstrip patch antenna originated in the 1950s, but it did not attract serious attention until the 1970s. Pier c online patch antenna with reconfigurable polarization. In this paper, a novel single feed frequency and polarization reconfigurable microstrip patch antenna is presented.
Varactor diode loaded reconfigurable patch antenna with. Generation of broadband highpurity dualmode oam beams. Design of circular polarized dual band patch antenna. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. The radiation pattern is not disturbed by switch state and gain of proposed antenna is above 5 dbi. Varactor diode loaded reconfigurable patch antenna with adjustable slots ritika tandon m. Abstracta singlefeed circular microstrip antenna with recon. Geometry of a reconfigurable polarization patch antenna with loop slot on the ground.
The suggested lslot excites the two orthogonal patch modes in phase quadrature for circular polarization without truncating any corner of the probe feed square patch. Four identical notches with parasitic elements are embedded into the design. Dual feed quadri polarization states microstrip patch antenna feeding with microstrip line 45 5. Electric surface current distribution on the eshaped patch antenna in state 3 during one time cycle. By switching pin diode on the slot, polarization reconfigurability is achieved. Jul 01, 2008 a novel design of a microstrip patch antenna with switchable branches is proposed to achieve circular polarization diversity. Reconfigurable patch antennas with fourpolarization states.
It can switch between linear polarization lp, rhcp and lhcp at dual frequency. Analysis and optimized design of single feed circularly polarized microstrip antennas. A personal overview of the development of microstrip patch. The patch is coupled to four asymmetric cross slots via a microstrip ring with eight matching segments underneath the ground plane, traversing through the arms of the cross slots in a serial manner. Specifically, the proposed method imposes simultaneously the circular polarization condition as well as an arbitrary input impedance matching condition.
For single feed microstrip antenna circular polarization. In this paper, we propose a novel reconfigurable microstrip patch antenna having frequency and. New proximity coupled feeding method for reconfigurable. Pdf a novel singlefeed circular microstrip antenna with. Frequency and polarization reconfigurable microstrip antenna. This antenna has a simple structure, which consists of a radiating circular patch, five switches. A diagonal slot is inserted in the square patch and a pin diode is placed on the slot. A broadband fourfeed circular patch antenna is demonstrated to generate highpurity dualmode vortex beams carrying orbital angular momentum. Polarization reconfigurable patch antenna for wireless sensor network applic. The proposed design approach is based on the use of two pairs of switches in order to obtain both frequency and polarization reconfigurability. 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.
Dualband reconfigurable antenna for polarization diversity. Sep 01, 20 polarization reconfigurable patch antennas with four polarization agility are investigated in this paper. This paper presents a novel design of circularly polarized near circular microstrip antenna using 3 different single feeding techniques. Somasekhar rao, a novel single feed frequency and polarization reconfigurable microstrip patch antenna, international.
This antenna has a simple structure, which consists of a radiating circular patch, five switches pin diode, three matching stubs, and a 50. Apr 24, 2018 the antenna is a low profile microstrip patch antenna which only uses a single feed, allowing it to be compact and simple in terms of its structure. The present paper demonstrates a frequency and polarization reconfigurable microstrip patch antenna with simple feed structure. Beam and polarization reconfigurable microstrip antenna based on. The sense of polarization can be easily changed from right handed to left handed by changing the feed position. Singlefeed polarization reconfigurable patch antenna. In the four decades since, there are literally thousands of papers on this antenna. A reconfigurable magnetoelectric dipole antenna using bent. In addition, the developed theoretical model shows the dependency of the.
Accordingly, many reconfigurable microstrip antennas for polarization diversity have. Beam and polarization reconfigurable microstrip antenna based. Microstripfed pattern and polarization reconfigurable. A novel singlefeed reconfigurable antenna for polarization and frequency. By turning the switches on or off, this antenna can radiate with either right. Frequency and polarization reconfigurable antenna for. Two branches are incorporated into the patch and two switches are utilized to switch the branches on and off. A single feed square microstrip patch antenna with polarization reconfigurability is presented in this paper. Antenna is simulated on hfss11 and after fabrication tested on antenna measurement system good impedance bandwidth is achieved at 2.
This paper presents a personal overview of the development of microstrip patch antennas. Therefore, lhcp could be generated at the resonant frequency. The antenna is a low profile microstrip patch antenna which only uses a single feed, allowing it to be compact and simple in terms of its structure. A novel single feed frequency and polarization reconfigurable. Single feed polarization reconfigurable microstrip patch antenna. It was decided to design a patch antenna from the theoretical study since it fulfils all the requirements for the antenna. Pin diode can be used to achieve reconfigurability by placing it. It is easy for a singlefed patch antenna to activate circular polarization cp.
Polarization reconfigurable aperturefed patch antenna wei lin and hang wong department of electronic engineering and state key laboratory of millimeter waves hk, city university of hong kong tat chee avenue, kowloon, hong kong, email. A microstrip patch antenna mpa is a type of antenna that consists of a conducting patch of any planar or nonplanar geometry on one side of a dielectric substrate with a ground plane on other side. Frequency and polarization reconfigurable microstrip antenna with. Circularly polarized single feed microstrip patch antennas. A singlefeed circular microstrip antenna with reconfigurable polarization capability is proposed. A polarization reconfigurable patch antenna with loop slots on the. Comparison chart of various parameters with in microstrip patch antenna table 1. Singlefeed circular polarization microstrip antenna. Eshaped radiation patch with a coaxial probe feeding into it. Simulations and tests shows that the antenna is circular polarized and have a. Reconfigurable microstrip patch antenna with switchable polarization. In order to get cp, one corner is cut off by lshaped cut near the feed.
This paper proposes a dualband reconfigurable squarering antenna with a polarization diversity property. A novel reconfigurable circular polarization patch antenna. Accordingly it is expected that a wideband polarization recon. The dualfed antenna can operates on two orthogonal linear polarizations simultaneously and on two orthogonal circular polarizations alternatively by controlling the perturbation elements on a square patch antenna. A broadband singlefeed circularly polarized patch antenna. A reconfigurable patch antenna consisting of a square patch with two crossshaped diagonal slots is presented. Index terms frequency reconfigurable, microstrip antenna. The microstrip patch antenna is designed and optimized in such a way that interconnection between patches tuned antenna from higher to lower frequency. The proposed antenna can be reconfigured to provide a pair of orthogonal linear polarizations by controlling the on off states of four pin diodes. A tunable microstrip patch antenna with switchable polarization. Abstract this paper presents a personal overview of the development of microstrip patch antennas. A parametric study has been carried out to investigate the effects caused by different arm length and width.
In 10, a polarization reconfigurable patch antenna was proposed to switch. Design of polarization reconfigurable microstrip antenna. Reconfigurable circular microstrip patch antenna with. The proposed antenna consists of a squarering resonator, two stubs with a shorting via, and two pin diodes.
A single feed compact microstrip antenna achieving frequency and polarization diversity using a varactor is presented. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane. Design and development of reconfigurable compact cross patch antenna for switchable polarization 211 figure a. A novel singlefeed circular microstrip antenna with. By loading the perturbation patch, the two orthogonal line polarized modes can be respectively converted to the right hand cp rhcp and left hand cp lhcp modes. A reconfigurable patch antenna consisting of a square patch with two crossshaped. Tarricone department of innovation engineering university of salento via monteroni, lecce 73100, italy abstracta recon. The work on single feed frequency and polarization reconfigurable microstrip patch antenna is reported earlier. A bent cross dipole with one pin diode inserted into each of its four arms is utilized to excite the antenna. Eshaped patch antenna with reconfigurable circular.
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