This paper presents air gap aperture coupled microstrip antenna for dual band operation over the frequency range of 2. The antenna consists of a cushaped slottedpatch radiator with an aperture coupled feeding system. Moreover, an aperture coupled feed yields better gain and radiation pattern for a dualpolarized antenna aimed for wireless applications 712. A dual polarized aperture coupled circular patch antenna using a cshaped coupling slot by s. A broadband singlefeed circularly polarized patch antenna with wide beamwidth is presented. Figure 6a and b show the radiation pattern for eplane and. A new dual polarized aperturecoupled printed array for sar. Dgw with defected square patch is first proposed to excite a single. The authors of reference 144 propose a multilayer aperturecoupled patch antenna that can be used for dualpolarization operation at c and xbands.
Broadband dualpolarized aperturecoupled patch antennas with. Since both antennas provide dual polarization characteristics, a fully dichroic subreflector 116 and main reflector 112 are required. To minimize the volume and weight of a sar antenna, a common aperture configuration for dual or multiple bands are expected, which will share the subsystems behind the array as well. Sharedaperture multiband dualpolarized sar microstrip. A shapedbeam seriesfed aperturecoupled stacked patch. Dual wideband and dual polarized shared aperture antenna. The preferred design embodiment minimizes feedline length while simultaneously increasing the r. Nominal antenna circuit model parameters are determined.
Since its introduction in 1985 1, the features offered by this antenna element have proved to be useful in a wide variety of applications, and the versatility. 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. A dual polarized aperture coupled circular patch antenna. This paper presents a linear polarized aperture coupled inverted uslot patch antenna with small steps at the edges. Very few designs with dualband dualpolarized operations have been reported for application in mobile communication systems. By means of four shorting pins the bandwidth increases noticeably.
The authors of reference 144 propose a multilayer aperture coupled patch antenna that can be used for dual polarization operation at c and xbands. Dualpolarized slotcoupled planar antenna with wide. We use a simple rectangular, half wave long, probefed patch operating in. In order to achieve the wideband characteristic, this design considers a slot coupled patch antenna structure. Dual linearly polarized microstrip array antenna intechopen.
This antenna differs from any other microstrip antenna with their feeding structure of the radiating patch element. As a result, a lot of shared aperture dual band dual polarization dbdp integrated planar antennas have been proposed in the last two decades. A few technique have been introduce to obtain dual polarized antenna such as aperture coupled microstrip antenna, two port corporate feed network and two or more probe feeds technique. The wellknown aperture coupled antenna first proposed and demonstrated by pozar 1, has been developed into a variety of dual polarization slot coupled patch antennas reported in 25. A broadband dualpolarized microstrip patch antenna with. The mmwave dp acmpa array is capable of reading all types of frequency domainbased chipless rfid tags linearly polarized, orientation insensitive, crosspolarized cp, and dp within its operating frequency bandwidth. Moreover, an aperture coupled feed yields better gain and radiation pattern for a dual polarized antenna aimed for wireless applications 712. The theoretical analysis is based on the finite element method fem. Geometry of the aperture coupled stacked patch microstrip gps antenna. In 18, the authors designed a dual polarized microstrip seriesfed linear travelingwave array consists of fourport aperture coupled cross patch elements and a twoport radiating matched load. A new sband element design of slband dual band dual polarized shared aperture array antenna for synthetic aperture radar applications is introduced, where the stacked patch structure is used to. Introduction nowadays, dualpolarized microstrip antennas have popular application in wireless mobile and satellite communication systems, synthetic aperture radars and radio frequency identification systems due to their salient fea.
Kai chang recent days, antennas play an important role in wireless communication system. Dual polarized microstrip patch antennas could provide these features with low cost and easy fabrication. Miniaturized wideband aperture coupled microstrip patch. Research and development in the 1980s contributed to the discovery of the aperturecoupled microstrip patch antenna 2. The directivity of the proposed antenna varies from 7. A dual polarized aperture coupled circular patch antenna using a cshaped coupling slot, ieee trans. In this paper, a compact broadband dual polarized stacked patch antenna with the aperture coupled microstrip feed is proposed. A corporate fed coplanar folded slot antenna array and its application for beam steering.
The antenna consists of a cushaped slotted patch radiator with an aperture coupled feeding system. A dual polarized aperture coupled circular patch antenna using a cshaped coupling slot abstract. Design of aperture coupled microstrip patch antenna for. Microstrip antenna seems to be most suitable for the sharedaperture array. Dualpolarized slotcoupled microstrip antenna with very high. Pdf an aperturecoupled dualpolarized wideband microstrip antenna with high porttoport isolation in cband is presented in this paper. For broad bandwidth and easy integration with active circuits, it uses the aperture coupled stacked patches. The printed antenna has a measured 10 db return loss bandwidth of 52% and an isolation between the excitation ports of greater than 39 db over this frequency. The cushaped slot is embedded on the square patch for dualband and dualsense circularly polarized radiation.
Besides linear polarization, it has been demonstrated that dual polarization and circular polarization can be obtained with aperture coupled elements. Substrateintegrated waveguide, isolation, dualpolarized microstrip antenna, aperture coupled antenna. The proposed antenna not only consists of a fullplanar structure, but also is easy to be fabricated for its simple structure. Design of circular polarized dual band patch antenna. Dualpolarized slotcoupled antenna with a better isolation can be obtained by using multiple coupling slots, as the multifeed technique is capable of suppressing higherorder modes. A dual polarized slottedwaveguide antenna based on gap waveguide technology author. In 18, the authors designed a dualpolarized microstrip seriesfed linear travelingwave array consists of fourport aperturecoupled crosspatch elements and a twoport radiating matched load. An exploded view of the dual polarized microstrip antenna and a simplified equivalent circuit model for an aperture coupled microstrip antenna are shown in figure 1. This paper presents air gap aperture coupled microstrip antenna for dualband operation over the frequency range of 2. A pair of spaced apart resonant microstrip radiators is fed from two differently polarized inputoutput ports by respective different feedlines to achieve different respective polarizations while at the same time minimizing undesirable r. Anyone can give comments or tell me some references or books about the definition of dual polarization.
A new design procedure based on optimizing the orthogonal mode isolation is demonstrated experimentally to provide highly decoupled feedlines and radiated fields with low cross. Compact wideband dual polarized microstrip patch antenna k. This design also permits the realization of a dual polarized microstrip antenna from a single array aperture as will be appreciated. This paper describes a wideband dualpolarized slottedwaveguide antenna working at vband 5766 ghz based on gap waveguide concept. Many efforts have been made on the dualpolarization slotcoupled patch antennas to achieve sufficient bandwidth, low back radiation, low levels. Compact dual polarized aperture coupled microstrip patch antenna. To avoid these errors swedish transport administration, upwis ab and. This paper presents a new design of dual polarized aperturecoupled printed antenna array. 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. Dual polarized patch antenna designs microstrip patch antennas. Aditya, explained that the design and development of a dual linearly polarized aperture coupled circular microstrip patch antenna at cband are presented. Many efforts have been made on the dual polarization slot coupled patch antennas to achieve sufficient bandwidth, low back radiation, low levels. Dual band aperture coupled stacked microstrip patch antenna. The isolation between the two ports is above 28 db in the bandwidth, and the gain is 6.
Stuchly department of electrical and computer engineering university of victoria, victoria, b. A wideband, dual polarized printed antenna is designed and developed in this paper. A shapedbeam seriesfed aperturecoupled stacked patch array. The cushaped slot is embedded on the square patch for dual band and dual sense circularly polarized radiation. Figure 1 shows the geometry of the basic aperture coupled patch antenna. Microstrip antenna an overview sciencedirect topics. A dualpolarized slottedwaveguide antenna based on gap waveguide technology author. Dual and circularly polarized aperture coupled microstrip antennas. The proposed design exhibits wideband behavior, acceptable return loss, vswr, gain, small size, and less complexity. The selected microstrip antenna is a dual fed circular polarized microstrip antenna. Dual polarized aperture coupled wideband microstrip patch.
History of aperturecoupled microstrip patch antenna aperture coupled microstrip patch antennas have become a viable option for wireless and telecommunication systems over traditional microstrip patch antennas. Introduction this article introduces the basic concepts of patch antennas. Different slot and feeding types are used in the xband antenna design to improve the crosspolarization and isolation. Design of circular polarized dual band patch antenna thomas edling at the moment swedish transport administration uses a monitor system that can detect urgent errors as warm ballbearings and flat wheels etc. Dualpolarized aperturecoupled wideband microstrip patch. The design and development of a dual linearly polarized aperture coupled circular microstrip patch antenna at cband are presented. For a single source, the system has to somehow either select one polarization or the other or the system has to properly combine them. Therefore, a number of dualband dualpolarized dbdp sharedaperture antenna arrays have been proposed and studied.
Design of wideband lprobefed dualpolarized patch antennas. Compact wideband dualpolarized microstrip patch antenna k. Highisolation dualpolarized microstrip antenna via. A wideband highgain dualpolarized slot array patch antenna. A dualband circularly polarized aperturecoupled stacked. And a coupling slice instead of a resistive load is used as matching load of the microstrip ring for. We use a simple rectangular, half wave long, probefed patch operating in its fundamental mode as an example. 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. Dual polarized aperturecoupled microstrip patch antenna for x. Pdf design of a ka ku dualband dualpolarized array. The typical configuration of dbdp array includes perforated patches and patches 2,3, interlaced slotdipole with patch 46.
Some of these works have used an aperture coupled feed to improve bandwidth and isolation. A novel slotted patch antenna is proposed for dual band circularly polarized radiation using an aperture coupled feed. In this paper, a compact broadband dualpolarized stacked patch antenna with the aperture coupled microstrip feed is proposed. This paper describes a wideband dual polarized slottedwaveguide antenna working at vband 5766 ghz based on gap waveguide concept. Nikmehr, a dual band dual polarized microstrip array antenna for base stations, progress in electromagnetics. Dual polarized antenna array design the dual polarized emcp antenna is used for the design of higher gain 2. The latter is required since the reflectors of the wband antenna are disposed in front of the xband antenna. Pdf simple broadband dualpolarized aperturecoupled. Abstractin this paper, a compact broadband dualpolarized stacked patch antenna with the aperture coupled microstrip feed is proposed.
The defected square patch is called the perturbation element. Pdf dual linearly polarized microstrip array antenna. Dualpolarized aperturecoupled patch antennas with application. A novel slottedpatch antenna is proposed for dualband circularly polarized radiation using an aperture coupled feed. To meet these requirements many various dual polarized antennas have been developed 16. The finitedifference timedomain fdtd analysis of an aperturecoupled microstrip element is performed, and the effects of antenna parameters on its characteristics are obtained to guide the design of the printed array. This design has wide bandwidth, good return loss, vswr, and radiation characteristics by.
Dual polarized slot coupled antenna with a better isolation can be obtained by using multiple coupling slots, as the multifeed technique is capable of suppressing higherorder modes. A broadband singlefeed circularly polarized patch antenna. Dual polarized wideband aperture stacked patch antennas. The basics of patch antennas, updated orban microwave. A wideband highgain dual polarized slot array patch. In this communication, a dual polarized aperture coupled microstrip patch antenna with a broadbandwidth highisolation low crosspolarization levels, and lowbackward radiation levels is designed and its features are presented. Dual polarization insetfed microstrip patch antenna. Dual polarized aperturecoupled microstrip patch antenna for xband. Dual feed microstrip patch antenna for wlan applications dinesh kannan.
Pdf dualpolarized aperturecoupled wideband microstrip patch. In yus work 10, a ring resonator is coupled to a microstrip. The mmwave dp acmpa array is capable of reading all types of frequency domainbased chipless rfid tags linearly polarized, orientation insensitive, crosspolarized cp, and dp within its operating frequency bandwid. This paper presents a new design of aperturecoupled patch antennas with modified hshaped coupling slots for achieving dualpolarization radiation with hi. Simple broadband dualpolarized aperturecoupled microstrip.
Dual polarized radiation is realized by feeding a rectangular patch with two orthogonal gaps. A wideband dualpolarized patch antenna fed with the aperture. A broadband dual polarized microstrip patch antenna with. This is discussed in more detail in the following section. Input signal couples to the radiating patch trough the aperture that exists on the ground plane of microstrip feed line. Dual feed microstrip patch antenna for wlan applications. An aperture coupled dual polarized wideband microstrip antenna with high porttoport isolation in cband is presented in this paper. Pdf dual polarised aperturecoupled patch antenna using. Nikmehr, a dualband dualpolarized microstrip array antenna for base stations, progress in electromagnetics.
Dual band aperture coupled stacked microstrip patch antenna for wlan gunjan1, amanpreet kaur2 pg student ece, dept. A dual polarized mmwave acmpa array for a universal mm. The design and development of a sharedaperture dualband, dualpolarized, dualaperture coupled rectangular microstrip patch antenna element is presented, which is suitable for portable very. This paper presents a dual band aperture coupled stacked microstrip antenna with the. The wband antenna is a dual polarized cassegrain reflector antenna which is nearly invisible at xband. History of aperture coupled microstrip patch antenna aperture coupled microstrip patch antennas have become a viable option for wireless and telecommunication systems over traditional microstrip patch antennas. After that, lots of works about the aperture coupled microstrip array antennas had been carried out with good array performances achieved 1720. An exploded view of the dualpolarized microstrip antenna and a simplified equivalent circuit model for an aperture coupled microstrip antenna are shown in figure 1. A dualband and dualpolarized stacked shared aperture patch antenna with low crosspolarization and high isolation is presented. Very few designs with dual band dual polarized operations have been reported for application in mobile communication systems. The aperture coupled microstrip antenna was developed by using cross slot aperture at the plane between feed line plane and ground plane. A wideband, low profile p and kuband dual polarized shared. A few technique have been introduce to obtain dual polarized antenna such as aperturecoupled microstrip antenna, two port corporate feed network and two or. Jun 23, 2016 a dual polarized aperture coupled circular patch antenna using a cshaped coupling slot by s.
Does a dual polarized antenna mean an antenna of an roughly equal copolarization and crosspolarization. A novel compact dual polarized antenna is proposed. In addition, series fed aperture coupled arrays have been demonstrated as in 9. Abstract this letter presents the design and realization of a compact dual polarized aperture coupled microstrip patch antenna for. Aperture coupled microstrip patch antenna for wifi, wimax. Dualpolarized aperturecoupled patch antennas with application to retrodirective and monopulse arrays. This example shows how to design and measure a wideband dual polarized microstrip antenna that finds its use at the base station of a cellular system. Research and development in the 1980s contributed to the discovery of the aperture coupled microstrip patch antenna 2.
International journal of engineering applied sciences and. The antenna is based upon an aperture stacked patch layout and incorporates a simple dual layered feeding technique to achieve dual polarized radiation. Introduction dual band antennas are often used for remote sensing 1 to provide for frequency diversity. A dual band and dual polarized stacked shared aperture patch antenna with low crosspolarization and high isolation is presented. Introduction bandwidth enhancement by multiple resonances is a widely used technique for microstrip patch antennas. The antenna consists of circular patch and 3 db hybrid coupler. Dual band circularly polarized aperture coupled microstrip antenna 1619 fig. A dualpolarized slottedwaveguide antenna based on gap.
Preferably, low permitivity dielectric constant substrates are utilized so as to further increase the directivity of the element and eliminate undesirable grating lobes. The corner feeding of square microstrip patches is applied. In 15 a dual and wide band aperture stacked patch antenna with doublesided notches has been presented. The proposed antenna contains reflector, substrate, patch and director. A wideband dualpolarized slotcoupled stacked microstrip antenna with very high isolation and low crosspolarization is presented. The design and development of a shared aperture dual band, dual polarized, dual aperture coupled rectangular microstrip patch antenna element is presented, which is suitable for portable very. Us4464663a dual polarized, high efficiency microstrip. There have been a few studies in the gap feeding method. Model and analyze dual polarized patchmicrostrip antenna. Compact wideband dualpolarized microstrip patch antenna. By adding a parasitic disc patch, the bandwidth is effectively broadened. This paper presents the design and development of a compact dual linearly polarized aperture.
The antenna uses a novel configuration of symmetric and asymmetric coupling slots. Coupling effects of aperture coupled microstrip antenna. The wellknown aperturecoupled antenna first proposed and demonstrated by pozar 1, has been developed into a variety of dualpolarization slotcoupled patch antennas reported in 25. Wideband duallinear polarized microstrip patch antenna. An antenna can be made to have a choice of two polarizations, or have two polarizations available simultaneously. As a result, a lot of sharedaperture dualband dualpolarization dbdp integrated planar antennas have been proposed in the last two decades. Design of striplinefed dualpolarization aperturecoupled stacked microstrip patch phased array antenna for wideband application. Design of aperture coupled microstrip patch antenna for wireless communication applications. A wideband, low profile p and kuband dual polarized.
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