A spiralshaped dgsintegrated microstrip line enhances the port isolation of the antenna, while feeding the 2. Design of a high isolation dual polarized sband microstrip. Design of dual band dual polarized microstrip patch antennas core. Broadband and highisolation dualpolarized microstrip antenna with low radar cross section abstract. Compact microstrip antennas are of great importance in meeting the miniaturization requirements of modern portable communications equipment. A new dual band and dualpolar ized antenna is investigated in this letter. Microstrip patch antennas have become the favorite of antenna designers because of their versatility and having the advantages of planar profile, ease of fabrication, compatibility with integrated circuit technology, and conformability with a shaped surface. A lowprofile dualpolarized microstrip antenna array for. A dual polarized 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, wherein said feed network permits feed to take place only at. 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. A new compact dualband, dualpolarized microstrip an tenna is presented. Design and experimental details a schematic diagram of the proposed dual frequency antenna is shown in figure 1.
A dualport dualpolarized compact microstrip antenna for avoiding cross coupling between the two frequency bands is proposed and analyzed. Dualband dualpolarized perforated microstrip antennas. Conclusion the feeding structure plays a critical role in interport isolation s12 performance of dual port, dual polarized microstrip patch antenna. Antenna 2 using cross shaped patch with slotloaded structure is presented and. Design of dual band dual polarized microstrip patch antennas. Compact dual circularlypolarized microstrip antennas. Highisolation dualpolarized microstrip antenna via. The aperture coupled microstrip antenna was developed by using cross slot aperture at the plane between feed line plane and ground plane. So the impedance bandwidth for this antenna is improved due to the mhs compared with the conventional antenna. Dualpolarized slotcoupled planar antenna with wide.
Chapter 2 presents the basic theory of mpas, including the basic structures, feeding techniques and. It transmits lefthand circularly polarized lhcp signals in l. Design of a dual polarized rectangular patch antenna using. Pdf this paper presents the design of a dualband microstrip antenna with dual polarization characteristic for high altitude platforms haps. Google has not performed a legal analysis and makes no. Circular polarization in the case of a dual feed circularly polarized 6 microstrip antennas, an external.
Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. The isolations of these antennas are about than 34 db, and bandwidth achieves 20 %. Dual linearly polarized microstrip array antenna 379 using built single patch slant at 45 and 45 polarization. The design and analysis of the antennas are performed numerically using ie3d code 12. A new dual band and dual polarized antenna is investigated in this letter. First, we present a single rectangular patch antenna fed by a gap. A kuband dual linear polarized broadband aperturecoupled antenna with highisolation and low radar cross section rcs in special direction is presented, fabricated, and measured based on substrate integrated waveguide technology. Geometry of a dually polarized shorted microstrip patch antenna coupled to. Supergain behavior of microstrip antennas assume that a flat multilayered plate has such currents in the layers that on one side of the plate near its. In this paper the measured axial ratios another design of dual band dual polarized modified circular microstrip antenna is given by amit a. Request pdf dual band dual polarized perforated microstrip antennas for sar applications for dual band dual polarized synthetic aperture radar sar applications a. Compact dual polarized microstrip antenna structure and results figure 1 shows the geometry of the compact dual polarized square patch microstrip antenna with four bent slots parallel to the patchs central lines 1. Compact dual circularly polarized microstrip antennas.
Circularly polarized antennas have been developed with single and dual feed arrangement. A simple structure concentric annularring slot dual band circularly polarized cp microstrip antenna operating at ism band 2. This method of feeding occupies a negligible space compared to other feeding methods such as a quarterwave. Dual polarized spacefed antenna array design the dual polarized spacefed antenna arrays are designed using circular microstrip antenna cmsa for 5. A dualband dualpolarized stacked microstrip antenna with. Gap feeding at the edge of a rectangular patch antenna is proposed for the first time in this paper. A compact dualband dualpolarized microstrip antenna array for.
This antenna consists of a microstrip feed line, a square annular slot and two embedded inverted l. A dualpolarized radiator for a phased array antenna includes two planar microstrip notch elements that interlock and are perpendicular to each other having their phase centers coincident to provide advantageous operational characteristics when the elements are used to form a wide bandwidth, wide scan angle phased array antenna. The proposed antenna is comprised of three layers of substrate. In the case of a dual feed circularly polarized 6 microstrip antennas, an external power divider with quadrature phase difference is required to generate the two orthogonal modes. A dual band dualpolarized microstrip array antenna for base stations article pdf available in progress in electromagnetics research 123. In a dual polarized antenna having a first circularly polarized antenna and a second linearly polarized antenna, the first circular antenna for polarized waves, the patch and the ground conductor consists of a microstrip antenna connected with the outer conductor of the second antenna feed line for the linearly polarized waves, the second linearly polarized antenna is. A novel dual band dual polarization stacked microstrip dielectric antenna is analyzed and designed.
Dual band and dual polarized microstrip patch antenna electronics and communication engineering. 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. The profile increases due to the structure of ushaped folded. The bandwidth of microstrip antenna can be increased by using air as the substrate. A centre groundshorted microstrip line is inserted on the. Pdf compact dual circularlypolarized microstrip antennas. Pdf compact wideband dualpolarized microstrip patch.
By adopting the concept of nonuniformity on the coupling slots and microstrip ring, a broadband dual circularly polarized patch antenna realized 10db return loss bandwidth of 24%, 3db axial. The patch is of rectangular shape and fed by a gap between the patch edge and a microstrip open end. In one hand, its lower operating frequency demonstrates high gain and on the other hand, the upper operating frequency shows circular polarization. For verification, a dual polarized patch antenna is implemented and its fabrication prototype is shown in figure 7. Microstrip patch antennas support both linear as well as circular polarization and capable of dual and triple frequencies. Singlefeed dualpolarized high gain microstrip antenna. Us6552691b2 broadband dualpolarized microstrip notch. Dual band and dual polarized microstrip patch antenna. Pdf highisolation dualpolarized microstrip antenna via. A dual polarized dual band microstrip antenna for wireless. Kaband antenna arrays with dualfrequency and dualpolarized. Dual polarized patch antenna designs microstrip patch antennas. In this paper, we propose a new compact dual polarized microstrip patch antenna fed by gap. Us5945951a high isolation dual polarized antenna system.
Compact wideband dual polarized microstrip patch antenna k. The proposed design consists of two pairs of small parallel slots on the. The oam radio beams are generated by employing a fourelement antenna array with specific excitation. A novel triband asymmetric slot with defective ground structure dgs microstrip antenna for dual circular polarization cp is proposed. Research article a novel compact dualpolarized antenna. Us7327317b2 dualpolarized microstrip patch antenna. The mechanisms of the shorted dual polarized microstrip patch antenna provide wider bandwidth than full size microstrip patch antennas with high decoupling between two input ports. Stuchly department of electrical and computer engineering university of victoria, victoria, b. Pdf design of dualband and dualpolarized microstrip. A dual polarized microstrip patch antenna fed by quasicrossshaped slot with the ports isolation higher than 35 db has been discussed in 18. Among these types, dual polarized microstrip antenna has attracted wide. Simulated and measured s11, s22 and s12 parameters for dual polarized slot coupled microstrip patch antenna iv.
A design of the broadband dual polarized microstrip antennas is proposed by using the simply inset feed technique but slant at desired rotation. Pdf design of dualband and dualpolarized microstrip antenna. For the construction of the antennas it has been used microstrip antenna technology, because it has been demonstrated that it is suitable for these applications due to their many advantages such as low profile and weight, easy integration with printed circuits. The antenna achieves dual band operation by digging two concentric annularring slots on the ground. This method of feeding occupies a negligible space compared to other feeding methods such as a. A dual polarized antenna on a printed circuit board, the antenna comprises a plurality of orthogonally placed microstrip lines. Pdf a lowcost dualpolarized microstrip antenna array. A dual band dualpolarized stacked microstrip antenna with highisolation and bandnotch characteristics is proposed. The two arms of each bent slot have the same length and are perpendicular to each. Dual polarized patch antenna fed by meandering probes. So far, the design proposed herein has achieved up to 48% reduction in size with 38% decrease in operating frequency.
High isolation dualpolarized patch antenna with hybrid. Design of wideband lprobefed dual polarized patch antennas. This antenna offers channel isolation better than 25. 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. 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 paper, a new compact dual polarized microstrip patch antenna is proposed. A dualband circularly polarized aperturecoupled stacked. The demand for antennas for mobile wireless applications has increased dramatically over the last 10 years. Us4464663a dual polarized, high efficiency microstrip. Introduction bandwidth enhancement by multiple resonances is a widely used technique for microstrip patch antennas. Dualpolarized broadband microstrip antennas fed by proximity.
In this contribution a dual band, dual polarized microstrip antenna element for array applications is presented. The patch antenna is designed to operate simultaneously at around 30 and 20 ghz, the up and downlink frequencies of modern kaband satellite communication systems. Pdf dual band and dual polarized microstrip patch antenna. The quasicrossshaped aperture is excited by a ushaped and an mshaped microstrip. Dual linearly polarized microstrip array antenna intechopen. An antenna can be made to have a choice of two polarizations, or have two polarizations available simultaneously.
Thus a compromise has to be made between the antenna dimensions and antenna performance. Jul 15, 2014 dual band and dual polarized siwfed microstrip patch antenna abstract. Broadband and highisolation dualpolarized microstrip. Alternatively, an offset feed line or a 3db branch line coupler can be used, but it increases the overall size of the antenna.
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. Design, implementation and experimental comparison between. This work presents a novel broadband dualpolarized microstrip patch antenna, which is fed by proximity coupling. Dualband and dualpolarized siwfed microstrip patch antenna. The dual polarized emcp antenna is used for the design of higher gain 2. A dual polarized sabrelike antenna is reported in 8 to realize omnidirectional performance. A dual polarized dual mode orbital angular momentum oam microstrip antenna array is presented. An isolation improved sband microstrip patch antenna with proximity coupling feeding technique is proposed and designed. A dualpolarized microstrip patch antenna structure comprising. Compact wideband dualpolarized microstrip patch antenna. A dual polarized microstrip antenna with highisolation is proposed based on the substrateintegrated waveguide siw technology in this paper.
Wideband dual linear polarized microstrip patch antenna. In addition, the crosspolarization level in the e and hplane patterns for the compact dual polarized microstrip antenna studied is about as good as that of an unslotted square microstrip. A wide band dualpolarized microstrip patch antenna. Compact and broadband microstrip antennas wiley online books. The configuration consists of a drumfigure 1 geometry of the proposed dual frequency dual polarized compact microstrip antenna 1 as a 90 180 c.
Pdf 77 ghz dualpolarized microstrip antennas on thin. Dual band and dualpolar ized siwfed microstrip patch antenna abstract. Pdf dual linearly polarized microstrip array antenna. Pdf a wide band dualpolarized microstrip patch antenna. Compact microstrip antennas capable of dual polarized radiation are very suitable for applications in wireless communication systems that demand frequency reuse and polarization diversity. A novel concentric annularring slot dualband circularly.
Compact wideband dual polarized microstrip patch antenna. The requirements are two orthogonal polarizations with good purity and suitability of the array column for 1d beamforming applications. Next, based on the single patch design, we describe the structure and design of a dual polarized patch antenna fed by gap. Nair, single feed dual frequency dual polarized slotted square microstrip antenna, microwave opt technol lett 25 2000.
Two modes tm10 mode and antiphase tm20 mode are excited and coupled to. Design simulation and fabrication of microstrip patch antenna. A dualpolarized microstrip antenna with a good isolation but a narrow bandwidth is reported in 17, where two rectangular slots are placed in a t configuration. Dual band dual polarized modified circular microstrip antenna. In increases, surface this paper design of a circularly polarized substrate. In this work, a novel singlefeed stacked microstrip antenna is proposed for high gain and dual polarization application. Reduced size, dualpolarized microstrip patch antenna for wireless. A planar dualpolarized microstrip 1dbeamforming antenna array for the 24ghz band abstract. In order to design a circular microstrip antenna for multiband applications suitable dielectric substrate of relative permittivity r4. This book is a comprehensive treatment of design techniques and test data for current compact and broadband microstrip.
Dual linearly polarized operations of a compact slot. A compact and simple structure antenna with triple. Abstract in this paper description of microstrip patch antenna is presented, along with the use of circular polarization and cavity to improve basic antenna characteristics. Triband dual circularly polarized planar antenna with. A planar linearly dual polarized mmwave antenna array is designed, fabricated, and investigated in detail. A dual polarized dual band microstrip antenna for wireless communications abstract. Pdf dual polarized microstrip patch antenna, reduced in. 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. To obtain high isolation between two input ports, a pair of orthogonal differentially driven feeding lines are printed on the top side of the bottom layer. Dualband dualpolarized dbdp antennas have been used to expand the operating. Duffy abstract this paper describes the design and testing of an aperturecoupled circularly polarized antenna for global positioning satellite gps applications. The dual polarized spacefed antenna array consists of two substrate layers. Request pdf dual band dual polarized perforated microstrip antennas for sar applications for dual band dual polarized synthetic aperture radar sar applications a compact lowprofile design.
To achieve polarization matching between transmitting and receiving. It transmits lefthand circularly polarized lhcp signals in l band and receives righthand. Broadband dual polarized spacefed antenna arrays with. The simulated and measured parameters of the proposed antenna are shown in figure 8. A few technique have been introduce to obtain dual polarized antenna such as aperturecoupled microstrip antenna, two port corporate feed network and two or more probe feeds technique. Lowprofile and dualpolarized microstrip antennas abstract. Pdf a new dualpolarized gapfed patch antenna semantic. Pdf on jan 1, 2008, k s ryu and others published a dualpolarized shorted microstrip patch antenna for wideband. This paper presents a high port isolation dual frequency orthogonally polarized rectangular patch antenna integrated with defected ground structure dgs. Pdf dual polarization insetfed microstrip patch antenna.
According to the siw technology, the metalized holes mhs are inserted into a substrate of the proposed antenna and the electric fields of the feeding parts are enclosed, so the isolation of the antenna is enhanced. Us20070126641a1 dualpolarized microstrip patch antenna. Today we have a number of land and satellite based systems for wireless communications using a wide range of frequency bands. A dualband circularly polarized aperturecoupled stacked microstrip antenna for global positioning satellite david m. Each antenna element is an aperturecoupled microstrip patch antenna with a low profile of 0. Highisolation dualpolarized microstrip antenna via substrate. Pdf a dualband dualpolarized microstrip array antenna.
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