This thesis focuses on the aperture coupled patch antenna due to the lack of fabrication and tuning documentation. The dualpolarized patch antenna in 2 used an aperture coupling feed to achieve a broad bandwidth of 1. Aperture coupled microstrip patch antenna for wifi, wimax. Figure 1 shows the geometry of the basic aperture coupled patch antenna. This thesis focuses on the aperture coupled patch antenna due to the lack of fabrication and tuning documentation for the design of this antenna and its usefulness in arrays. Dual polarized aperture coupled patch antennas with application to retrodirective and monopulse arrays abstract. A dual band dual polarization slot patch antenna for gps and wi. The proposed antenna contains reflector, substrate, patch and director.
Dual band aperture coupled stacked microstrip patch. In 10, an aperture coupled square microstrip patch with. An aperture coupled dual polarized wideband microstrip antenna with high porttoport isolation in cband is presented in this paper. The multiband handset antennas can be made dualpolarized for improved compensation of fading effects of propagation environment, especially in terrestrial bands. A dual polarized aperture coupled circular patch antenna using a cshaped coupling slot abstract. Similar, compact, dualpolarized antennas have been discussed in 4, wherein four, bended slots have been embedded within the square patch to achieve smaller size. The proposed antenna not only consists of a fullplanar structure, but also is easy to be fabricated for its. I have designed a dualband microstrip patch antenna for lte and wifi applications. The antenna is capable of operating over a bandwidth of 26% with.
Index termsdualpolarization, shaped patch, high isolation, mi. Pdf aperture coupled microstrip antenna for dualband. Varying several physical parameters of aperture and matching feed line lengths had very large effect on the. The dual polarized antenna yields a bandwidth of 20. Three antennas are dual polarized and use a 3 db hybrid as the polarizer in the feed network. This paper focuses on the outcomes of the development of a horizontal and vertical polarized patch antenna scheme that operates on 3 bands, 900 mhz, 1. The antennas main differences are in the feed network, slot aperture shape and radiating patch. By means of four shorting pins the bandwidth increases noticeably. Stacked antenna with aperture feeding mechanism results in great isolation between two feeds. Lindmark, a novel dual polarized aperture coupled patch element with a single layer feed. 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 compact dualpolarized double shaped patch antenna with. Seriesfed aperturecoupled microstrip antennas and arrays.
Broadband dual circularly polarized mdantenna antennas. The design and experimental results of a cband dual polarized aperture coupled stacked patch microstrip antenna are presented. This paper describes a singlefeed sring type stacked microstrip structure antenna for broadband applications. Nikmehr, a dualband dualpolarized microstrip array antenna for base stations, progress in electromagnetics. Simulations and tests shows that the antenna is circular polarized and have a. Broadband dualpolarized aperturecoupled patch antennas. The antenna is designed for rhcplhcp at a center frequency of 2.
Abstract this letter presents the design and realization of a compact dual polarized aperture coupled microstrip patch antenna for. Aperture coupled microstrip antenna design and analysis. An aperturecoupled dualpolarized wideband microstrip antenna with high porttoport isolation in cband is presented in this paper. The circular patch of radius r is etched on a fr4 substrate of thickness 1. Dual polarized aperture coupled microstrip patch antenna system wo1998054785a1 en 19970527. 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. As the author said, the patch antenna is orthogonally fed by two cpws, the antenna can work at 2. A dualband aperturecoupled cp microstrip patch antenna is presented. Design of striplinefed dualpolarization aperturecoupled stacked microstrip patch phased array antenna for wideband application. Kai chang recent days, antennas play an important role in wireless communication system. A dual polarized aperture coupled circular patch antenna.
Stuchly department of electrical and computer engineering university of victoria, victoria, b. In this communication, a dualpolarized aperturecoupled microstrip patch antenna with a broadbandwidth highisolation low crosspolarization levels, and lowbackward radiation levels is designed and its features are presented. A dual linearly polarized lp meda, excited by a power divider and a broadband 90. A wideband highgain dualpolarized slot array patch. The dual band antenna is fed through an aperture cut in the ground plane coupled to a. Introduction bandwidth enhancement by multiple resonances is a widely used technique for microstrip patch antennas. 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. 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.
Its an antenna that can operate in vertical as well as. Miniaturized circularly polarized patch antenna using. In this paper, a dualpolarized patch antenna capacitively coupled through four feeds is proposed. Index terms circular patch, dual feed, hybrid coupler. Dualpolarized aperturecoupled wideband microstrip patch. The dual fed circular polarized microstrip antenna is etched on a fr4 with. And the proposed antenna has smaller size than two single polarized antenna. Patch antenna for 2 4ghz with circular polarisation youtube. Critical issues in the design are examined, and both simulated and experimental results are presented. Circularly polarized, aperturecoupled patch antennas for.
For broad bandwidth and easy integration with active circuits, it uses the aperturecoupled stacked patches. The design and development of a dual linearly polarized aperture coupled circular microstrip patch antenna at cband are presented. Configuration of a dual polarized shorted microstrip patch antenna coupled to hook shape probes a top view b side view l30 mm, w7. Compact dual polarized aperture coupled microstrip patch antenna. A broadband dualpolarized printed antenna ruina lian, shaoshuai zhang, yingzeng yin, xueyan song, and hao zhang abstracta lowpro. A circular polarization microstrip stacked structure. Research and development in the 1980s contributed to the discovery of the aperturecoupled microstrip patch antenna 2. Compact wideband dualpolarized microstrip patch antenna. An isolation technique, which does not require conventional circulators, is proposed for the realization of a simple and lowcost aperture coupled circularly polarized antenna for application to fullduplex devices. Ieee antennas and wireless propagation letters, vol. The aperture coupled microstrip antenna was developed by using cross slot aperture at the plane between feed line plane and ground plane. Dual polarized aperture coupled microstrip patch antenna system us5977915a en 19970627. Pdf dualpolarized aperturecoupled wideband microstrip patch.
A wideband circularly polarized patch antenna for 60 ghz. Recently i read a dual polarized antenna and have some questions to ask, the structure of the antenna is as follows. Design of circular polarized dual band patch antenna. This article presents the design of four different circularly polarized, aperturecoupled patch antennas with switchable polarization sense. Compared with other dualpolarized patch antennas reported, the bandwidth of the proposed antenna is significantly increased and an impedance bandwidth of over 110% is obtained by applying such feeding mechanism.
Because of the good performance obtained from the previously developed dual. A linearlypolarized aperture coupled patch antenna design is characterized and optimized using hfss antenna simulation software. Ultrawideband dualpolarized patch antenna with four. Moreover, an aperture coupled feed yields better gain and radiation pattern for a dualpolarized antenna aimed for wireless applications 712. Compact wideband dualpolarized microstrip patch antenna k. Therefore, its a suitable candidate for arrays, and could be used in base stations for wifi applications. A wideband dualpolarized stacked microstrip patch antenna. Many efforts have been made on the dualpolarization slotcoupled patch antennas to achieve sufficient bandwidth, low back radiation, low levels. A dualband slotembedded microstrip antenna for dual. Tri band, dual polarized, patch antenna, antenna modeling, 5g patch antenna, patch antenna prototype. 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 isolation between the two ports is above 28 db in the bandwidth, and the gain is 6. A dualpolarization aperture coupled stacked microstrip. Enhancement of the bandwidth, isolation, and low crosspolarization.
The detailed parameters of the antenna structure and packaging are listed in. 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. The vertical and the horizontal slot are of equal length which is about 1. Dual linearly polarized microstrip array antenna 17 intechopen. Wireless networking is also covered, with a focus on wifi and wimax. An aperturecoupled dualpolarized wideband microstrip antenna with high.
Dualband aperturecoupled cp antenna with single crossslot. Index terms dualpolarized, microstrip patch antenna. Dual linearly polarized microstrip array antenna intechopen. The antenna uses a novel configuration of symmetric and asymmetric coupling slots. So far, the design proposed herein has achieved up to 48% reduction in size with 38% decrease in operating frequency.
Highisolation dualpolarized microstrip antenna via. A broadband dualpolarized microstrip patch antenna with. I have started to design this dualband antenna by designing the 5. Theaperturecouplingfeediscomposedofatshapedmicrostripfeed lineandafullwavelengthannularringslot,andtheyarerespectively. A wideband circularly polarized patch antenna for 60 ghz wireless communications 99. It was decided to design a patch antenna from the theoretical study since it fulfils all the requirements for the antenna. This paper presents a new design of aperture coupled patch antennas with modified hshaped coupling slots for achieving dual polarization radiation with high isolation over a wide bandwidth.
Index terms dualpolarized, microstrip patch antenna, high. Impedance matching for dualband microstrip patch antenna. The aperture coupled microstrip antenna was developed by using cross slot. Dual polarization stacked microstrip patch antenna array. Wideband duallinear polarized microstrip patch antenna. Broadband dualpolarized aperturecoupled patch antennas with modified hshaped coupling slots abstract. Development and optimization of the aperturecoupled stacked microstrip patch antenna is presented, which has dual polarization with great enhancement of bandwidth. In this video i will show you how to build a very simple circular polarised patch antenna for 2. Seriesfed aperturecoupled microstrip antennas and arrays by bojana zivanovic a dissertation submitted in partial fulfillment of the requirements for the degree of doctor of philosophy department of electrical engineering college of engineering university of south florida major professor. The electromagnetic power is coupled from the feed line to radiating patch through proximity coupling feeding technique for. A dual polarized dual band microstrip antenna for wireless. The antenna element is an aperture coupled, stacked patch, maintaining the symmetry needed for dual polarization operation.
Antenna projects using hfss electronics electrical projects. Broadband dual polarized spacefed antenna arrays with high. A new design for a dual polarized aperture coupled patch antenna is presented. Dual polarized microstrip patch antenna, reduced in size. A patches with corner fed also can excite two orthogonal polarized with.
This paper presents air gap aperture coupled microstrip antenna for dualband operation over the frequency range of 2. This directional antenna is a simple design with a. Dual polarized wideband aperture stacked patch antennas. 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. Reduced size, dualpolarized microstrip patch antenna for. Tri band dual polarized patch antenna system for next generation. Elaziz, dual band circularly polarized microstrip patch antenna for wifi applications. The enhanced bandwidth is achieved by using a stacked patch configuration and dumbbell shaped slots. Our paper describes a dual polarized, dual band antenna element suited for use in a base station antenna. A singlefeed miniaturized circularly polarized patch antenna has been proposed and studied in this paper. A 60 ghz aperture coupled meda fed by a transverse slot etched on the broad wall of a section of shortedend substrate integrated waveguide siw showed an impedance.
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