Dual polarized microstrip patch antenna, reduced in size by. Reduced size, dualpolarized microstrip patch antenna for wireless communications keyoor gosalia, student member, ieee, and gianluca lazzi, senior member, ieee abstract a novel, compact, probefed microstrip patch antenna for operation in dualpolarization mode is proposed. The dualorthogonal linearly polarized mode is excited by two di. In this paper, a dual polarized patch antenna fed by a hybrid ring structure is proposed. Design, implementation and experimental comparison between. Dual polarization stacked microstrip patch antenna array with very low crosspolarization johan granholm, member, ieee, and kim woelders abstract this paper describes the development and performance of a wideband dual linear polarization microstrip antenna array used in the danish highresolution airborne multifrequency.
Wideband dual linear polarized microstrip patch antenna. The array network is used to combine the 2 element of single patch antennas. The profile increases due to the structure of ushaped folded. A dual polarized single operating frequency microstrip antenna of the type having integral microstrip feedline and resonant radiating patches in an electrically conducting layer spaced by dielectric less than onefourth wavelength above an underlying ground plane, said antenna comprising. Microstrip line feed is used to energize the patch. Request pdf design of a dualpolarized microstrip patch antenna with excellent polarization purity in this paper, the design of a broadband dualpolarized. A novel dualpolarized aperturecoupled microstrip patch antenna with a wide bandwidth, high isolation, low crosspolarization levels and low backward radiation levels is designed and its features. Dualpolarized slotcoupled planar antenna with wide.
The corner chopped square patch with four bent slots is adopted in this design. A broadband dualpolarized microstrip patch antenna with. Dual polarization stacked microstrip patch antenna array with. Design of a dualpolarized microstrip patch antenna with excellent. Vhf wideband, dualpolarization microstrippatch antenna. Pdf on jan 1, 2008, k s ryu and others published a dualpolarized shorted microstrip patch antenna for wideband. A broadband proximitycoupled dualpolarized microstrip. Design of dual band dual polarized microstrip patch antennas. The proposed antenna consists of a slotloaded crossshaped patch, which can be considered as orthogonally polarized radiating elements operated in the tm 50 mode. A compact dualpolarized double shaped patch antenna with. Stuchly department of electrical and computer engineering university of victoria, victoria, b. Dualband circularly polarized microstrip patch antenna. The novel design is achieved by etching out a symmetric pattern.
This paper presents the design, implementation and interport isolation performance evaluation of three dual port, dual polarized 2. Design of a dualpolarized microstrip patch antenna. Pdf dual linearly polarized microstrip array antenna. A dualpolarized microstrip patch antenna having one or more individual elements with each of said one or more individual elements having at least one rectangular patch arranged on the upper face of a printed circuit board having a feed network on said upper face and having metallization over the entire surface of the lower face. A feed system supplies the rf power, and a ground plane is at the bottom of the patch antenna, sustaining the substrate. The top metallic flat region, which is called the patch antenna, sits on a dielectric substrate. A dual band circularly polarized singlefeed microstrip antenna for wireless communication systems is proposed here and its performance is tested in free space. Abstracta design for dual band circularly polarized microstrip antenna msais presented in this paper. Properties of a basic microstrip patch a microstrip or patch antenna is a lowprofile antenna that has a number of advantages over other antennas.
Various patch antenna structures have been reported for dualband operation with circular polarization 411 and specially for gps applications 4,5,811. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. High isolation dualpolarized patch antenna with hybrid. A new dualband and dualpolarized antenna is investigated in this letter. The isolations of these antennas are about than 34 db, and bandwidth achieves 20 %. Dual polarized patch antenna designs microstrip patch. Recently, a dual polarized patch antenna fed by a wide balun can realize wide working band, low crosspolarization, and high isolation performances. Dual resonant frequencies are obtained by inserting a slot in patch.
A wide band dualpolarized microstrip patch antenna ieee xplore. The flexible coaxial cables directly feeding technique is used in 8, 9 to improve the isolation and crosspolarization, but the antennas are relatively high. Introduction bandwidth enhancement by multiple resonances is a widely used technique for microstrip patch antennas. Design of wideband lprobefed dualpolarized patch antennas. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. Dual polarized patch antenna designs microstrip patch antennas. In order to design a circular microstrip antenna for multiband applications suitable dielectric substrate of relative permittivity r4. The work presents a new dualpolarized microstrip patch antenna fed by double slotcoupled feeds of 180spl deg phase shift and a coplanar microstrip feed.
A broadband dualpolarized microstrip patch antenna with aperture. In this work, a novel singlefeed stacked microstrip antenna is proposed for high gain and dual polarization application. A new dualpolarized microstrip patch antenna fed by probe feed and aperture coupled feed is presented. The defected square patch is called the perturbation element. This article presents a novel singlefeed circularly polarized patch antenna for dual band 2. Abstracta broadband dualfeed dualpolarized microstrip antenna with low cross polarization and high isolation is presented. Dual linearly polarized microstrip array antenna 17 intechopen. Us4464663a dual polarized, high efficiency microstrip. Dual linear polarized antenna can also develop by using square patch with two feed probes. Dual band circularly polarized modified rectangular patch. Input matching and interport isolation both dc and rf performance of implemented antennas has been compared by measuring the input return losses sii, s22 and interport isolation s12 respectively at 2. This modified rectangular microstrip antenna having one protruded curved edge is simulated by using the ie3d simulation software.
A dualpolarized microstrip patch antenna fed by quasicrossshaped slot with the ports isolation higher than 35 db has been discussed in 18. The two arms of each bent slot have the same length and are perpendicular to each. A dual port, dual polarized microstrip patch antenna with high interport isolation along with self interference suppression at analog and digital stages, is required to realize simultaneous transmit and receive wireless operation at same frequency using single antenna. A dual polarized antenna 10 with good isolation between feed ports a, b and high similarity with respect to the radiation patterns is provided. Reduced size, dualpolarized microstrip patch antenna for. A dualpolarized microstrip patch antenna using hybrid feed. Singlefeed dualpolarized high gain microstrip antenna. Dgw with defected square patch is first proposed to excite a single. The proposed design consists of two pairs of small parallel slots on the.
A microstrip feed line has connected to the patch from the edge of the substrate. Cst microwave studio softwareis used to simulate the antenna design. Among these types, dual polarized microstrip antenna has attracted wide. The lshape cavity backed ground plane is used to enhance the feeding coupling and thus to broaden the bandwidth of this antenna. Single feed dual band circularly polarized microstrip patch. The basics of patch antennas, updated orban microwave. In this communication, a dualpolarized aperturecoupled microstrip patch antenna with a broadbandwidth highisolation low crosspolarization levels, and. A dual polarized sabrelike antenna is reported in 8 to realize omnidirectional performance. For a single source, the system has to somehow either select one polarization or the other or the system has to properly combine them. In this communication, a dual polarized aperturecoupled microstrip patch antenna with a broadbandwidth highisolation low crosspolarization levels, and lowbackward radiation levels is designed and its features are presented.
Each feed probe will generate one polarized signal primarily such. Dualband and dualpolarized siwfed microstrip patch antenna abstract. The dualpolarized patch antennas applying probe director or coupled feeding have a limited impedance bandwidth or high crosspolarization 57. In between conducting patch and ground plane, designed. Two longitudinal and transverse slots on the broad wall of the substrate integrated waveguide siw are responsible for creating two different frequency bands with distinct polarization. Dual polarized patch antenna fed by meandering probes. A broadband proximitycoupled dual polarized microstrip antenna with a lshape backed cavity is presented. A novel dual polarized aperturecoupled microstrip patch antenna with a wide bandwidth, high isolation, low crosspolarization levels and low backward radiation levels is. These dual polarized antennas with multiple slots are generally more difficult to design and fabricate than the classical dual polarized antenna with two slots in. Pdf dual polarization insetfed microstrip patch antenna. A dual polarized microstrip patch antenna is proposed for kuband applications. Microstrip patch antennas have become the favorite of antenna designers because of its versatility and advantages of planar profile, ease of fabrication, compatibility with integrated circuit technology, and conformability with a shaped surface. One of the two modes is excited by a pair of lshaped probes with a 180 phase. Design of dualpolarized microstrip patch antennas with excellent.
Enhancement in isolation and bandwidth for aperturecoupled patch antennas. Compact wideband dualpolarized microstrip patch antenna. Design of wideband lprobefed dual polarized patch antennas. Highisolation dualpolarized microstrip antenna via. Compact dual circularlypolarized microstrip antennas. We present a highgain, lowprofile dual polarized microstrip antenna operating in the hybridized higher order mode. Two port feed network technique will excite two independent dominant mode from the patch with fed at the dual central point. In a basic design according to generally accepted microstrip patch antenna engineering practice, one would ordinarily use a relatively thick dielectric substrate and multiple feed probes to obtain the desired combination of wideband and dual polarization capabilities. Dual linear polarization with low cross polarization and high isolation has previously been reported using a cross shaped microstrip patch antenna. Similar, compact, dual polarized antennas have been discussed in 4, wherein four, bended slots have been embedded within the square patch to achieve smaller size.
The baseline configuration uses a square patch insetfeed technique on the top layer. Lowprofile and dualpolarized microstrip antennas abstract. Most often, microstrip antennas are made by etching the patch from a printed circuit board with conductor on both sides. Us7327317b2 dualpolarized microstrip patch antenna. Jacob, investigation of wideband microstrip slot antenna, ieee trans. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces.
An antenna 10 includes a patch 11, four symmetrically arranged feed structures 12 a12 d, 15, two feed ports, b and a feed network 14. This is to certify that the work in the thesis entitled dual band and dual polarized microstrip. Nikmehr2 1department of energy, kermanshah university of technology. Dualband and dualpolarized siwfed microstrip patch antenna. The dual polarized patch antennas normally have a multilayer structure which may include coupling slots and lshaped probe or meandering probe, or a feeding network 9, 10 proposing a dual polarized microstrip patch antenna fed through hshaped coupling slots, which can achieve high isolation and low crosspolarization. Here, by slightly deforming the shape of the patch, the bandwidth of the cross.
A novel dual polarized aperturecoupled microstrip patch antenna with a wide bandwidth, high isolation, low crosspolarization levels and low backward radiation levels is designed and its features. Design of dual band dual polarized microstrip patch antennas core. Compact dualpolarized microstrip antenna structure and results figure 1 shows the geometry of the compact dualpolarized square patch microstrip antenna with four bent slots parallel to the patchs central lines 1. High isolation dualpolarized patch antenna with hybrid ring. Kai chang due to the recent interest in broadband antennas a microstrip patch antenna was developed to meet the need for a cheap, low profile, broadband antenna. The proposed antenna in 4 is a circularly polarized stacked patch antenna with aperture. In one hand, its lower operating frequency demonstrates high gain and on the other hand, the upper operating frequency shows circular polarization. Pdf a wide band dualpolarized microstrip patch antenna. A dual band circularly polarized microstrip patch antenna is investigated. Dual linearly polarized microstrip antenna using a slot. However, the antennas have narrow impedance bandwidth. Dual linearly polarized microstrip array antenna intechopen. Apr 06, 2017 an antenna can be made to have a choice of two polarizations, or have two polarizations available simultaneously.
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