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. 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. Research and development in the 1980s contributed to the discovery of the aperturecoupled microstrip patch antenna 2. Crosssection view of dual polarization probefed microstrip stacked patch antenna element. The array antenna offers an impedance bandwidth vswr. I have started to design this dualband antenna by designing the 5. Dual and circularly polarized aperture coupled microstrip antennas. The design optimization is carried out using commercial method of moment mom based simulation software. Even further increases may be achieved by using configurations that exhibit dual. The proposed antenna not only consists of a fullplanar structure, but also is easy to be fabricated for its.
Input signal couples to the radiating patch trough the aperture that exists on the ground plane of microstrip feed line. Miniaturized wideband aperture coupled microstrip patch antenna. This paper presents air gap aperture coupled microstrip antenna for dual band operation over the frequency range of 2. Keywords aperture coupled microstrip antenna, back radiation reduction, circularly polarized microstrip antenna, crossslot coupled, microstrip antenna with resonant slots. Dualpolarized aperturecoupled wideband microstrip patch. Aperture coupled microstrip patch antenna for wifi, wimax.
Dual linearly polarized microstrip array antenna intechopen. Wideband duallinear polarized microstrip patch antenna. Geometry of the aperture coupled stacked patch microstrip gps antenna. Wideband dualpolarized slotcoupled microstrip array for. Aperture coupled microstrip antenna couples the patch antenna with microstripline through an aperture 1. Anyone can give comments or tell me some references or books about the definition of. Geometry of the proposed antenna with design parameters. Nikmehr, a dualband dualpolarized microstrip array antenna for base stations, progress in electromagnetics. Aditya, explained that the design and development of a dual linearly polarized aperture coupled circular microstrip patch antenna at cband are presented.
The patch is of length l and width w and is etched on a dielectric substrate of. Introduction nowadays, dual polarized 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. Dual band and dual polarized microstrip patch antenna. The measured isolation between two polarization ports is better than 35 db and the measured crosspolarization level below.
Although rectangular shaped slot coupled patch antennas are widely used in most of the applications, their utilization in dual polarized antenna. Nikmehr, a dual band dual polarized microstrip array antenna for base stations, progress in electromagnetics. Circularly polarized aperture coupled microstrip antenna. Research and development in the 1980s contributed to the discovery of the aperture coupled microstrip patch antenna 2.
This paper presents a linear polarized aperture coupled inverted uslot patch antenna with small steps at the edges. Impedance matching for dualband microstrip patch antenna. Variations in isolation between orthogonal feedlines and antenna axial ratio with the position of coupling slots are studied and broadband isolation and axial ratio are. Dual band aperture coupled stacked microstrip patch antenna. A dual polarized aperture coupled circular patch antenna. A simple technique to develop dual feed dual linearly polarized aperture coupled planar microstrip patch antenna at lband frequency has been presented. Design of dual band dual polarized microstrip patch antennas core. A circularly polarized stacked patch aperture coupled.
Stuchly department of electrical and computer engineering university of victoria, victoria, b. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed. Pdf dualpolarized aperturecoupled wideband microstrip patch. 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. Novel aperturecoupled microstripline feed for circularly. The directivity of the proposed antenna varies from 7. 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. Pasternacks microstrip patch antenna calculator determines the length and width in millimeters of a rectangular patch antenna. The cushaped slot is embedded on the square patch for dual band and dual sense circularly polarized radiation.
Dual polarization stacked microstrip patch antenna array. Geometry of a dually polarized shorted microstrip patch antenna coupled to. Dual band aperture coupled stacked microstrip patch antenna for wlan gunjan1, amanpreet kaur2 pg student ece, dept. The ocean microwave dual polarized horn antenna series cover the frequency range from 6 to 18ghz and is designed for the measurement of antennas in the mw range. Shared aperture array of slot coupled microstrip patch antennas that generates cp radiation at two frequencies simultaneously using sequentially rotated lp dual frequency antenna elements topview. 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. A dualband circularly polarized aperturecoupled stacked. Aperture coupled microstrip antenna design and analysis michael paul civerolo a linearlypolarized aperture coupled patch antenna design is characterized and optimized using hfss antenna simulation software 1. Pdf dual polarization insetfed microstrip patch antenna. The antenna consists of a cushaped slottedpatch radiator with an aperture coupled feeding system. 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.
Aperture coupled microstrip antenna design and analysis. The antenna consists of a cushaped slotted patch radiator with an aperture coupled feeding system. Abstract a novel dualpolarized patch antenna for ultrawideband uwb applications is presented. Resonant coupling between the feed structure, slot and middle patch is responsible.
The proposed design has the input impedance bandwidth and axial ratio bandwidth of about 10% and 4. Abstract this letter presents the design and realization of a compact dual polarized aperture coupled microstrip patch antenna for. Compact wideband dualpolarized microstrip patch antenna k. Coupling effects of aperture coupled microstrip antenna. A shared aperture dualfrequency circularly polarized. Dual band aperture coupled stacked microstrip patch. Miniaturized singlefeed crossaperture coupled circularly.
A dual polarized aperture coupled circular patch antenna using a cshaped coupling slot by s. A circularly polarized smallsize microstrip antenna using. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. The patch and ground plane are made of a high conductivity metal, copper and is of thickness t. I have designed a dual band microstrip patch antenna for lte and wifi applications. Design of striplinefed dualpolarization aperturecoupled stacked microstrip patch phased array antenna for wideband application. The proposed design exhibits wideband behavior, acceptable return loss, vswr, gain, small size, and less complexity.
The cushaped slot is embedded on the square patch for dualband and dualsense circularly polarized radiation. The measured isolation between two polarization ports is better than 35 db and the measured. Highisolation dualpolarized microstrip antenna via. Design and optimization of aperture coupled microstrip. Phase response is also relatively linear, providing good wideband frequency characteristics. Does a dualpolarized antenna mean an antenna of an roughly equal copolarization and crosspolarization. I have started to design this dual band antenna by designing the 5. A novel slottedpatch antenna is proposed for dualband circularly polarized radiation using an aperture coupled feed. Nominal antenna circuit model parameters are determined. Antenna configuration and design procedure the geometry of circulary polarized antenna is shown in figure 1. An aperturecoupled dualpolarized wideband microstrip antenna with high.
The wide impedance and axial ratio bandwidths are achieved by the proposed feeding mechanism, which entails the use of a circular. Dualpolarized slotcoupled planar antenna with wide. Substrateintegrated waveguide, isolation, dualpolarized microstrip antenna, aperture coupled antenna. However, the antenna is linearly polarized with a relatively narrow impedance bandwidth of 1. Dual polarization stacked microstrip patch antenna array with. It was decided to design a patch antenna from the theoretical study since it fulfils all the requirements for the antenna. Aperture coupled microstrip antenna design and analysis michael paul civerolo a linearly polarized aperture coupled patch antenna design is characterized and optimized using hfss antenna simulation software 1. This antenna differs from any other microstrip antenna with their feeding structure of the radiating patch element. Compact wideband dualpolarized microstrip patch 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. The antenna consists of a rectangular patch etched on a 60 mil thick fr4.
Abstractin this paper, a fractal dualpolarized aperturecoupled microstrip antenna is presented. This paper presents a dual band aperture coupled stacked microstrip antenna with the. Dualband circularly polarized aperturecoupled microstrip antenna 1619 fig. Design of circular polarized dual band patch antenna. The design and development of a dual linearly polarized aperture coupled circular microstrip patch antenna at cband are presented. Compact wideband dual polarized microstrip patch antenna k. Pdf dual polarised aperturecoupled patch antenna using. Introduction the microstrip antennas msas are the most rapidly. The proposed antenna contains reflector, substrate, patch and director.
The feed line creates an electric field in the aperture, which induces surface currents on the patch. The top patch of the antenna is of a rectangular shape having a rectangular slot of dimensions exactly same as the dimensions of the bottom patch. Jun 23, 2016 a dual polarized aperture coupled circular patch antenna using a cshaped coupling slot by s. Four identical shorting strips are symmetrically loaded underneath the radiating patch of the proposed antenna. The antenna consists of a rectangular patch etched on a 60 mil thick fr4 substrate. Geometry of the aperturecoupled stackedpatch microstrip gps antenna.
I have designed a dualband microstrip patch antenna for lte and wifi applications. The geometry of circulary polarized antenna is shown in figure 1. Design of dual band dual polarized microstrip patch antennas. Aditya, a dual polarized aperture coupled circular patch antenna using a cshaped coupling slot,ieee trans. 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. Development of shared aperture dual polarized microstrip. Because of the good performance obtained from the previously developed dual polarization cband. A triangular patch antenna for uhf band with microstrip feed. This paper presents a new design of aperturecoupled patch antennas with modified hshaped coupling slots for achieving dualpolarization radiation.
A novel dual polarized aperture coupled microstrip patch antenna with a wide bandwidth, high isolation, low crosspolarization levels and low backward radiation levels is designed and its features. Design of striplinefed dual polarization aperture coupled stacked microstrip patch phased array antenna for wideband application. Introduction bandwidth enhancement by multiple resonances is a widely used technique for microstrip patch antennas. The theoretical analysis is based on the finite element method fem. Dual feed excites two orthogonal field components with equal amplitudes but a 900 phase difference. The dual band antenna is fed through an aperture cut in the ground plane coupled to a 50. Dual band circularly polarized aperture coupled microstrip antenna 1619 fig. For broad bandwidth and easy integration with active circuits, it uses the aperture coupled stacked patches. This thesis focuses on the aperture coupled patch antenna due to the lack of fabrication and tuning documentation. Our sharedaperture antenna prototype uses 4 ghz for low fig. A few technique have been introduce to obtain dual polarized antenna such as aperturecoupled microstrip antenna, two port corporate feed network and two. Miniaturized wideband aperture coupled microstrip patch. Compact dual polarized aperture coupled microstrip patch antenna. This paper presents air gap aperture coupled microstrip antenna for dualband operation over the frequency range of 2.
Circularly polarized aperture coupled microstrip antenna with. 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. The measured results include the return loss and the impedance bandwidth of the antennas. A triangular patch antenna for uhf band with microstrip. This design has wide bandwidth, good return loss, vswr, and.
Novel aperture coupled microstripline feed for circularly polarized patch antenna hau wah lai, ka ming mak, and ka fai chan abstracta wideband circularly polarized patch antenna is proposed. Simulations and tests shows that the antenna is circular polarized and have a. The antenna consists of a square patch and four capacitively coupled feeds to enhance the impedance bandwidth. The aperture coupled microstrip antenna was developed by using cross slot aperture at the plane between feed line plane and ground plane. Geometry of a duallypolarized shorted microstrip patch antenna coupled to. By means of four shorting pins the bandwidth increases noticeably. The basic microstrip antenna is consisting of a radiating patch on one side of a dielectric substrate, which has a ground plane of the other side. Ultrawideband dualpolarized patch antenna with four. Jan 23, 2007 a circularly polarized stacked patch microstrip antenna and a 2. Broadband dualpolarized aperturecoupled patch antennas with.
The isolation between the two ports is above 28 db in the bandwidth, and the gain is 6. An aperture coupled dual polarized wideband microstrip antenna with high porttoport isolation in cband is presented in this paper. A triangular patch antenna for uhf band with microstrip feed line for rfid applications. Our shared aperture antenna prototype uses 4 ghz for low fig. A novel slotted patch antenna is proposed for dual band circularly polarized radiation using an aperture coupled feed. Seriesfed aperturecoupled microstrip antennas and arrays. Aditya, explained that the design and development of a dual linearly polarized aperture. Circularly polarized microstrip antennas are classified as singlefed type or dualfed type, depending on the. Design and optimization of aperture coupled microstrip patch antenna using genetic algorithm. Each feed is formed by a vertical isosceles trapezoidal patch and a horizontal isosceles triangular patch. Additional benefits of patch antennas is that they are easily fabricated. From the above table it can be seen that the performance of the optimized patch antenna using genetic algorithm is better than the unoptimized patch in terms of return loss, vswr, input impedance and. Circular polarization is obtained with the help of slits cut in the patch.
The antenna uses a novel configuration of symmetric and asymmetric coupling slots. 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. 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. Kai chang recent days, antennas play an important role in wireless communication system. The first aperture coupled microstrip antenna was fabricated and tested by a graduate student, allen buck, on august 1, 1984, in the university of massachusetts antenna lab. 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. This design has wide bandwidth, good return loss, vswr, and radiation. Aperture coupling is an indirect method of feeding the patch. Sharedaperture array of slotcoupled microstrip patch antennas that generates cp radiation at two frequencies simultaneously using sequentially rotated lp dualfrequency antenna elements topview. In this paper, a novel miniaturized singlefeed cross aperture coupled cp microstrip patch antenna is proposed. The paper demonstrates a suspended rectangular and also circular patch antennas with electromagnetically coupled inverted microstrip feed first, for linear polarization and second, for dual linear polarizationsfrequency operation at kukband frequencies. The design and analysis of the antennas are performed numerically using ie3d code 12. A broadband dualpolarized microstrip patch antenna with. Kawa abdoula, circularly polarized aperture coupled microstrip short backfire antenna with two rings, international journal of electronics and communication engineering and technology, 82, 2017, pp.
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