Each antenna element is an aperturecoupled microstrip patch antenna with a low profile of 0. Dual polarized spacefed antenna array design the dual polarized spacefed antenna arrays are designed using circular microstrip antenna cmsa for 5. An antenna can be made to have a choice of two polarizations, or have two polarizations available simultaneously. 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. 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. Dualband dualpolarized perforated microstrip antennas. Circular polarization in the case of a dual feed circularly polarized 6 microstrip antennas, an external. Alternatively, an offset feed line or a 3db branch line coupler can be used, but it increases the overall size of the antenna. For a single source, the system has to somehow either select one polarization or the other or the system has to properly combine them.
Compact and broadband microstrip antennas wiley online books. 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. In this work, a novel singlefeed stacked microstrip antenna is proposed for high gain and dual polarization application. Gridslotted radiating patch and cross yshaped feeding structure are applied to construct the dual polarized gridslotted broadband microstrip antenna. Design of circular polarized microstrip patch antenna for l band international journal of electronics signals and systems ijess issn. A dualport dualpolarized compact microstrip antenna for avoiding cross coupling between the two frequency bands is proposed and analyzed. Compact microstrip antennas are of great importance in meeting the miniaturization requirements of modern portable communications equipment. 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.
Dualband and dualpolarized siwfed microstrip patch antenna. The bandwidth of microstrip antenna can be increased by using air as the substrate. A dual polarized dual band microstrip antenna for wireless communications abstract. The simulated and measured parameters of the proposed antenna are shown in figure 8. The oam radio beams are generated by employing a fourelement antenna array with specific excitation. Circularly polarized antennas have been developed with single and dual feed arrangement. Design of dual band dual polarized microstrip patch antennas. Pdf design of dualband and dualpolarized microstrip antenna. Us4464663a dual polarized, high efficiency microstrip. Us7327317b2 dualpolarized microstrip patch antenna. Request pdf dual band dual polarized perforated microstrip antennas for sar applications for dual band dual polarized synthetic aperture radar sar applications a. A new dual band and dual polarized antenna is investigated in this letter. Dual band dual polarized modified circular microstrip antenna. Geometry of a dually polarized shorted microstrip patch antenna coupled to.
This paper presents a high port isolation dual frequency orthogonally polarized rectangular patch antenna integrated with defected ground structure dgs. For verification, a dual polarized patch antenna is implemented and its fabrication prototype is shown in figure 7. A wideband dualpolarized stacked microstrip patch antenna. The dual polarized spacefed antenna array consists of two substrate layers. Chu school of electronic and information engineering south china university of technology guangzhou 510640, china abstracta compact singlefeed dual band circularly polarized cp microstrip antenna is evaluated numerically and experimentally. Dual band and dual polarized microstrip patch antenna electronics and communication engineering. Google has not performed a legal analysis and makes no. 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 requirements are two orthogonal polarizations with good purity and suitability of the array column for 1d beamforming applications. The design and analysis of the antennas are performed numerically using ie3d code 12. A dual polarized microstrip antenna with highisolation is proposed based on the substrateintegrated waveguide siw technology in this paper. Gap feeding at the edge of a rectangular patch antenna is proposed for the first time in this paper. In this paper, we propose a new compact dual polarized microstrip patch antenna fed by gap. 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.
The proposed design consists of two pairs of small parallel slots on the. The antenna achieves dual band operation by digging two concentric annularring slots on the ground. Dual polarized patch antenna designs microstrip patch antennas. Triband dual circularly polarized planar antenna with. In one hand, its lower operating frequency demonstrates high gain and on the other hand, the upper operating frequency shows circular polarization. Pdf on jan 1, 2008, k s ryu and others published a dualpolarized shorted microstrip patch antenna for wideband.
A simple structure concentric annularring slot dual band circularly polarized cp microstrip antenna operating at ism band 2. Lowprofile and dualpolarized microstrip antennas abstract. Simulated and measured s11, s22 and s12 parameters for dual polarized slot coupled microstrip patch antenna iv. 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. A dualband circularly polarized aperturecoupled stacked microstrip antenna for global positioning satellite david m. 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. Broadband and highisolation dualpolarized microstrip antenna with low radar cross section abstract. Chapter 2 presents the basic theory of mpas, including the basic structures, feeding techniques and. So the impedance bandwidth for this antenna is improved due to the mhs compared with the conventional antenna. A dual band dualpolarized microstrip array antenna for base stations article pdf available in progress in electromagnetics research 123. 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. A dual polarized antenna on a printed circuit board, the antenna comprises a plurality of orthogonally placed microstrip lines. The quasicrossshaped aperture is excited by a ushaped and an mshaped microstrip.
It transmits lefthand circularly polarized lhcp signals in l. Duffy abstract this paper describes the design and testing of an aperturecoupled circularly polarized antenna for global positioning satellite gps applications. Broadband dual polarized spacefed antenna arrays with. Nair, single feed dual frequency dual polarized slotted square microstrip antenna, microwave opt technol lett 25 2000. The profile increases due to the structure of ushaped folded. Us20070126641a1 dualpolarized microstrip patch antenna. A centre groundshorted microstrip line is inserted on the.
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. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. Next, based on the single patch design, we describe the structure and design of a dual polarized patch antenna fed by gap. A planar dualpolarized microstrip 1dbeamforming antenna. 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. Dual linearly polarized microstrip array antenna intechopen. Antenna 2 using cross shaped patch with slotloaded structure is presented and. 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. Jul 15, 2014 dual band and dual polarized siwfed microstrip patch antenna abstract.
Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Dualpolarized broadband microstrip antennas fed by proximity. This work presents a novel broadband dualpolarized microstrip patch antenna, which is fed by proximity coupling. 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. The proposed antenna is comprised of three layers of substrate. A compact and simple structure antenna with triple. Pdf this paper presents the design of a dualband microstrip antenna with dual polarization characteristic for high altitude platforms haps. 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.
The patch is of rectangular shape and fed by a gap between the patch edge and a microstrip open end. 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. Broadband and highisolation dualpolarized microstrip. A planar linearly dual polarized mmwave antenna array is designed, fabricated, and investigated in detail. Pdf a wide band dualpolarized microstrip patch antenna. Design simulation and fabrication of microstrip patch antenna. A dual polarized sabrelike antenna is reported in 8 to realize omnidirectional performance. The configuration consists of a drumfigure 1 geometry of the proposed dual frequency dual polarized compact microstrip antenna 1 as a 90 180 c. Dual band and dual polarized microstrip patch antenna. Research article a novel compact dualpolarized antenna. A dualband circularly polarized aperturecoupled stacked. Microstrip patch antennas support both linear as well as circular polarization and capable of dual and triple frequencies. A spiralshaped dgsintegrated microstrip line enhances the port isolation of the antenna, while feeding the 2. Stuchly department of electrical and computer engineering university of victoria, victoria, b.
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 dual polarized dual mode orbital angular momentum oam microstrip antenna array is presented. Reduced size, dualpolarized microstrip patch antenna for wireless. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. This method of feeding occupies a negligible space compared to other feeding methods such as a quarterwave. Dual band and dualpolar ized siwfed microstrip patch antenna abstract. This method of feeding occupies a negligible space compared to other feeding methods such as a. A planar dualpolarized microstrip 1dbeamforming antenna array for the 24ghz band abstract. 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. Introduction bandwidth enhancement by multiple resonances is a widely used technique for microstrip patch antennas. High isolation dualpolarized patch antenna with hybrid.
In order to design a circular microstrip antenna for multiband applications suitable dielectric substrate of relative permittivity r4. Pdf dual band and dual polarized microstrip patch antenna. Two modes tm10 mode and antiphase tm20 mode are excited and coupled to. Design of a high isolation dual polarized sband microstrip.
So while designing this antenna air is selected as a substrate. This antenna offers channel isolation better than 25. In this contribution a dual band, dual polarized microstrip antenna element for array applications is presented. This antenna consists of a microstrip feed line, a square annular slot and two embedded inverted l. The isolations of these antennas are about than 34 db, and bandwidth achieves 20 %. Design, implementation and experimental comparison between. Dual linearly polarized microstrip array antenna 379 using built single patch slant at 45 and 45 polarization. An isolation improved sband microstrip patch antenna with proximity coupling feeding technique is proposed and designed. The aperture coupled microstrip antenna was developed by using cross slot aperture at the plane between feed line plane and ground plane. In this paper, a new compact dual polarized microstrip patch antenna is proposed. Compact dual circularly polarized microstrip antennas. A dualband dualpolarized stacked microstrip antenna with.
It transmits lefthand circularly polarized lhcp signals in l band and receives righthand. Thus a compromise has to be made between the antenna dimensions and antenna performance. 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. Compact wideband dual polarized microstrip patch antenna k. A design of the broadband dual polarized microstrip antennas is proposed by using the simply inset feed technique but slant at desired rotation. A dual polarized microstrip patch antenna fed by quasicrossshaped slot with the ports isolation higher than 35 db has been discussed in 18.
A new compact dualband, dualpolarized microstrip an tenna is presented. 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. A dual polarized dual band microstrip antenna for wireless. 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. A lowprofile dualpolarized microstrip antenna array for. A dualpolarized microstrip patch antenna structure comprising. Pdf a lowcost dualpolarized microstrip antenna array. Today we have a number of land and satellite based systems for wireless communications using a wide range of frequency bands. Singlefeed dualpolarized high gain microstrip antenna.
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. In this paper the measured axial ratios another design of dual band dual polarized modified circular microstrip antenna is given by amit a. A dual band dualpolarized stacked microstrip antenna with highisolation and bandnotch characteristics is proposed. Us6552691b2 broadband dualpolarized microstrip notch. Among these types, dual polarized microstrip antenna has attracted wide. The dual polarized emcp antenna is used for the design of higher gain 2. Dual polarized microstrip patch antenna, reduced in size.
So far, the design proposed herein has achieved up to 48% reduction in size with 38% decrease in operating frequency. Pdf dual polarization insetfed microstrip patch antenna. Dual polarized patch antenna fed by meandering probes. Pdf compact wideband dualpolarized microstrip patch. 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. In increases, surface this paper design of a circularly polarized substrate. Pdf a dualband dualpolarized microstrip array antenna. A wide band dualpolarized microstrip patch antenna. A new dual band and dualpolar ized antenna is investigated in this letter.
Design of wideband lprobefed dual polarized patch antennas. Dualpolarized slotcoupled planar antenna with wide. 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 novel dual band dual polarization stacked microstrip dielectric antenna is analyzed and designed. Dualband dualpolarized dbdp antennas have been used to expand the operating. Design of a dual polarized rectangular patch antenna using. 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. Pdf dual polarized microstrip patch antenna, reduced in. A novel triband asymmetric slot with defective ground structure dgs microstrip antenna for dual circular polarization cp is proposed. Conclusion the feeding structure plays a critical role in interport isolation s12 performance of dual port, dual polarized microstrip patch antenna. Pdf 77 ghz dualpolarized microstrip antennas on thin. First, we present a single rectangular patch antenna fed by a gap.
This book is a comprehensive treatment of design techniques and test data for current compact and broadband microstrip. A novel concentric annularring slot dualband circularly. Kaband antenna arrays with dualfrequency and dualpolarized. Highisolation dualpolarized microstrip antenna via. Compact wideband dualpolarized microstrip patch antenna. The two arms of each bent slot have the same length and are perpendicular to each. To achieve polarization matching between transmitting and receiving.
Pdf compact dual circularlypolarized microstrip antennas. 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. The demand for antennas for mobile wireless applications has increased dramatically over the last 10 years. 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. Compact dual circularlypolarized microstrip antennas. Pdf design of dualband and dualpolarized microstrip. Pdf a new dualpolarized gapfed patch antenna semantic.
Design and experimental details a schematic diagram of the proposed dual frequency antenna is shown in figure 1. Highisolation dualpolarized microstrip antenna via substrate. Pdf highisolation dualpolarized microstrip antenna via. A compact dualband dualpolarized microstrip antenna array for. Pdf dual linearly polarized microstrip array antenna.