It consists of a square radiating patch and a 3 db hybrid coupler. Antenna reconfiguration is enabled with the aid of two rf switches inserted in. Polarization diversity antennas can also alleviate the harmful influence caused by multipath effects. Survey on different types of reconfigurable patch antenna for wireless applications 1k. Fan yang, student member, ieee, and yahya rahmatsamii, fellow. In recent years a reconfigurable patch antenna becomes important issue in wireless and satellite communication systems, because it can operate frequency and polarization diversity using pindiodes switching 15. A reconfigurable antenna for switchable polarization request pdf. The propose structure is reconfigurable patch antenna with polarization states. Three switches are positioned in the slot thus produces six reconfigurable frequency bands. Polarization reconfigurable uslot patch antenna semantic. A polarization reconfigurable patch antenna with loop slots on the.
A reconfigurable patch antenna using switchable slots for circular polarization. The bias line has been placed above the substrate with some. Pdf reconfigurable patch slot antenna for circular. Reconfigurable dualslit perturbed patch antenna for circular. Circular polarization wideband eshaped patch antenna for. A cp polarization diversity patch antenna using switchable. Geometry of a reconfigurable polarization patch antenna with loop slot on the. It is easy for a singlefed patch antenna to activate circular polarization cp. A new polarizationreconfigurable antenna for 5g applications.
This paper presents a simple and compact coplanar waveguide cpwfed circular shaped reconfigurable patch antenna with a switchable circular polarization cp sense. The antenna design is analyzed and optimized using agilent ads software. This article proposes a novel circular patch antenna with polarization. A reconfigurable patch antenna using switchable slots for circular polarization diversity. A novel design of a microstrip patch antenna incorporated by two orthogonal lshaped switchable slots is proposed to achieve circular polarization. A wideband dielectric resonator antenna with switchable diversity patterns volume 12 issue 4 ahmad abdalrazik, adel b. The proposed antenna consists of the dualslit with in and outslit at a diagonal corner and three identical singleslits at the residual corners for generating right and lefthanded circular polarization.
Nov 01, 2014 read a reconfigurable circular patch antenna with switchable slits for polarization diversity, microwave and optical technology letters on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. For example, in 59 a reconfigurable patch antenna using switchable slots for circular polarisation diversity is proposed. Reconfigurable patch slot antenna for circular polarization. Survey on different types of reconfigurable patch antenna for. In order to reduce interference between users in cognitive radio networks by using pattern diversity, and to mitigate multipath fading in indoor environments by employing polarization diversity, so as to enhance. In this paper, a novel design of an octagonal shape micro strip patch antenna with switchable slots pass structure is proposed to achieve polarization diversity. Switches are used to change between right hand circular polarisation. A wideband dielectric resonator antenna with switchable. A reconfigurable antenna for switchable polarization. Jul 01, 2014 read reconfigurable microstrip annular ring antenna for circular polarization diversity, microwave and optical technology letters on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Apr 06, 2015 a reconfigurable patch antenna using switchable slotted structure for polarization diversity abstract. In this method it is necessary to connect two feeds and one extra circuit for 900 power divider. A novel design of a microstrip patch antenna with switchable slots pass is proposed to achieve circular polarization diversity. In this paper, a novel design of square patch antenna with a switchable polarization sense. A reconfigurable slot antenna with switchable polarization ieee. Several antenna configurations with polarization diversity have been reported. Pin diode can be used to achieve reconfigurability by placing it within the slot.
A tunable microstrip patch antenna with switchable polarization akansha tandon1, mr. A novel reconfigurable microstrip antenna with switchable polarization sense is. Reconfigurable circular microstrip patch antenna with. 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. A reconfigurable patch antenna using switchable slotted. This letter describes a square patch antenna with a switchable circular polarization cp sense. A reconfigurable patch antenna using switchable slots for circular. Polarization reconfigurable capability has been successfully added to a conventional eshaped patch antenna. A new reconfigurable microstrip patch antenna allowing switching between two circular polarizations is proposed. Polarization reconfigurable patch antenna for wireless sensor.
A frequency and polarization reconfigurable microstrip. Reconfigurable patch antennas with fourpolarization states agility. Study of frequency and polarization reconfigurable on square. The proposed antenna has four lshaped slots on the ground plane, and the cp radiation can be generated by current perturbation due to the slotted ground plane. Introduction in the field of wireless communications, a very important development is the integration of different applications including cellular phones, satellite communications and wireless local area networks. Two orthogonal slots are incorporated into the patch and two pin diodes are utilized to switch the slots on and off. Vidmar, varactortuned microstrippatch antenna with frequency and polarisation. A compact uslot microstrip patch antenna with reconfigurable polarization is proposed for wireless local area network wlan applications.
A novel reconfigurable small microstrip antenna with switchable slots is proposed to achieve circular polarization diversity. 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. Manikannan 1,2assistant professor, ck college of engineering and technology, cuddalore, tamil nadu abstract with the rapid advancement in wireless communication, reconfigurable antenna is gaining greater attention. An electronically reconfigurable microstrip antenna with. Jul 19, 2016 this paper presents a novel beamforming antenna array that combines pattern and polarization diversity for indoor cognitive radio systems. It is easy for a singlefed patch antenna to activate circular polarization cp wave by a perturbing the path of the current on the antenna element in many ways. The circular patch is cut at the ends vertically and switches are introduced to connect the patch ends. The propose structure is reconfigurable patch antenna with polarization states being switched among linear polarization lp, lefthand circular polarization lhcp and righthand circular polarizations rhcp. Reconfigurable microstrip patch antenna with switchable. Compact reconfigurable circularly polarised microstrip. Advances in intelligent systems and computing, vol 469. The frequency and polarization diversity with single patch and single feed produces a simple structure, small size, and low cost for. Eshaped patch antenna with reconfigurable circular. Chang, a novel reconfigurable microstrip antenna with switchable circular polarization, ieee antennas and wireless propag.
Further it has better return losses when compared to traditional reconfigurable patch antenna with switchable slots for polarization diversity. Comparative study of antenna designs for rf energy harvesting. Study of frequency and polarization reconfigurable on square patch antenna 149 conclusion in this paper a varactor diode loaded frequency and polarization reconfigurable antenna is designed and simulated. Sep 01, 20 most of those reconfigurable antennas can switch polarization senses between two cp states, or among one linear and two cp states. A reconfigurable circular patch antenna with switchable slits for. A cpwfed reconfigurable patch antenna with circular. A reconfigurable patch antenna using switchable slots for. The varactor diode is placed between the inner patch and outer ring. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. Two orthogonal slots are incorporated into the patch and two pin. Several antenna architectures, offering polarization diversity, have been proposed.
The antenna, containing a semicircular slot, was compact in size and had a good axial ratio and frequency response. But in reconfigurable patch antenna using switchable lshaped slots for circuit polarization diversity there is no need of power divider and also multiple feeds. The proposed antenna is consisted of a radiating circular patch with a slot underneath the circular patch. A tunable microstrip patch antenna with switchable polarization. Polarization reconfigurable patch antennas which can switch polarization states. College of engineering and technology, bareilly1 hod ec dept. Beamforming antenna array combining pattern and polarization. A microstrip antenna with circular polarization switching. A reconfigurable patch antenna using switchable slotted structure. Reconfigurable microstrip annular ring antenna for circular. Varactor diode loaded reconfigurable patch antenna with. 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.
In 5,6, the design of patch antennas with switchable slots has been presented. Many critical parameters affecting the axial ratio have to be considered. A reconfigurable polarized antenna using switchable. A reconfigurable circular patch antenna with switchable. This paper reports a reconfigurable patch antenna using a novel dualslit perturbation for circular polarization diversity. Dualband reconfigurable antenna for polarization diversity. A frequency and polarization reconfigurable microstrip patch antenna for adaptive wireless networks. Compact reconfigurable circularly polarised microstrip antenna with.
It allows switching between right hand circular polarization rhcp and left hand circular polarization lhcp. Reference 7 proposed an aperture coupled square patch antenna with quadric polarization agility. Index terms polarization, reconfigurable, slot, pin. Rahmatsamii, reconfigurable patch antenna using switchable slots for circular polarization diversity, ieee microw. Reconfigurable patch antennas with fourpolarization states. Elliptical circular polarization antenna is more sensitive than linearly polarized. Pin diodes are appropriately positioned to change the length of the uslot arms, which alters the antenna s polarization state. Keywords reconfigurable antenna, frequency diversity, patch antenna, switchable slot i. By turning the diodes on or off, this antenna can radiate with either right hand circular polarization rhcp or left hand circular polarization lhcp using the same feeding probe.
A reconfigurable circularly polarized microstrip antenna with. The microstrip rectangular structure as shown in fig. By using such a structure, a reconfigurable antenna with a switchable polarization in a dual band can be realized. Reconfigurable orthogonal polarizations were achieved by. Reconfigurable patch slot antenna for circular polarization diversity. This paper presented a new circular polarization reconfigurable antenna for 5g wireless communications. By turning the diodes on or off, this antenna can radiate with linear and circular polarization, either right hand circular polarization rhcp or left hand circular polarization lhcp using the same. Vahldieck, a reconfigurable slot antenna with switchable polarization, ieee microwave and wireless components letters, vol. Two pin diode switches controlled the reconfiguration for both the righthand and lefthand circular polarization.
Reconfigurable microstrip patch antenna using mems technology. Two antenna prototypes with identical dimensions are designed, fabricated and measured. Slots are cutting in the square patch and, by using the diodes to. Rahmatsamii, a reconfigurable patch antenna using switchable slots for circular polarization diversity, ieee microwave and wireless components letters, vol. A reconfigurable polarized antenna using switchable slotted.
In 3, a patch antenna that allows switching between two linear and two circular. An electronically reconfigurable patch antenna design for. College of engineering and technology, bareilly2 abstract a novel reconfigurable microstrip patch antenna with frequency and polarization diversities is. An electronically reconfigurable microstrip antenna with switchable slots for polarization diversity article in ieee transactions on antennas and propagation 599. A reconfigurable patch antenna using switchable slots for circular polarization diversity ieee microwave and wireless components letters 2002 123 96 98 2s2. Jun 02, 2016 singlefeed circular microstrip patch antenna with diagonal slot for polarization reconfigurability has been proposed. Jul 29, 2016 title a reconfigurable patch antenna using switchable slots for circular polarization diversity, volume 12, issn 15319, abstract a novel design of a microstrip patch antenna with switchable slots pass is proposed to achieve circular polarization diversity.