The corner feeding of square microstrip patches is applied. A dual polarized aperture coupled patch structure with air cavity is implemented for the antenna array. Meanwhile, to improve the isolation at the low frequency band, a rectangular slot is etched along the diagonal line of the ground plane. A polarization reconfigurable antenna for dualband. Crosssection view of dual polarization probefed microstrip stacked patch antenna element. Highisolation dualpolarized microstrip antenna via. The paper presents the design of a dual polarized aperture coupled microstrip patch antenna suitable for passive 5. Fortunately, the centerfed aperturecoupled element couples to the magnetic. Dual polarization stacked microstrip patch antenna array with. Desing of a circularly polarized patch antenna for satellite communications in lband department of signal theory and communications.
Many attractive methods such as parasitic patch and aperture coupled feedi2, lshaped probe feed 34. The square patch with triangular slots and dual feeding technique makes it possible to have a bandwidth of 6. Novel aperturecoupled microstripline feed for circularly. Dual polarized aperture coupled patch and slanted dipoles measured radiation patterns of base station antennas and calculated correlation. Current distribution on the patch surface and location of the feed.
The lshape cavity backed ground plane is used to enhance the feeding coupling and thus to broaden the bandwidth of this antenna. Dual aperturecoupled microstrip antenna for dual or. Dual circularlypolarized equilateral triangular patch. With a bowtie aperture, the bandwidth was increased to 12. Circularly polarized aperture coupled microstrip antenna with. Dualpolarized aperturecoupled wideband microstrip patch. Dualpolarized slotcoupled planar antenna with wide. Consequently, the antema will be able to transmit twice as much information using the same bandwidth, le. Keywords aperture coupled microstrip antenna, back radiation reduction, circularly polarized microstrip antenna, crossslot coupled, microstrip antenna with resonant slots. Design and performance analysis of dual band circularly. The flexible coaxial cables directly feeding technique is used in 8, 9 to improve the isolation and crosspolarization, but the antennas are relatively high. And the proposed antenna has smaller size than two single polarized antenna working at the same frequency. An ieee fellow, he was the recipient of the 2009 john kraus antenna award of the ieee antennas and propagation society for exceptional contributions to the field of antennas. Microstrip patch antennas world scientific publishing.
Moreover, the antenna prototype shows good symmetrical. As a result, a lot of shared aperture dual band dual polarization dbdp integrated planar antennas have been proposed in the last two decades. This paper presents a new design of aperturecoupled patch antennas with modified hshaped coupling slots for achieving dualpolarization radiation with hi. Therefore, the equivalent circuit modeling of a microstrip line fed hshaped slot is also studied in this thesis. Several dual polarized antennas have been suggested in the past. In this paper, with the application of dielectric resonator antennasdra, a novel design of a shared aperture dual band dual polarized dbdp array working in the kaku bands is proposed. Microstrip patch antennas have become the favorite of antenna designers because of its versatility and advantages of planar profile, ease of fabrication, compatibility with integrated circuit technology, and conformability with a shaped surface. Broadband dualpolarized aperturecoupled patch antennas with modified hshaped coupling slots abstract. A dual linearly polarized antenna is one that is capable of iaunching.
This can be achieved if dual polarized antennas and polarization diversity are used. Apr 06, 2017 an antenna can be made to have a choice of two polarizations, or have two polarizations available simultaneously. 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. Us5945951a high isolation dual polarized antenna system. Abstract a linearly polarized aperture coupled patch antenna design is characterized by using matlab software. Figures 3 and 4 illustrate the vswr and gain of the antenna. A broadband proximity coupled dualpolarized microstrip antenna with a lshape backed cavity is presented. For broad bandwidth and easy integration with active circuits, it uses the aperture coupled stacked patches.
Abstract this project describes the process of design and manufacturing of an xband 7. Le bihan et al dual polarized aperture coupled patch antennas the proposed 2 2 array see fig. The radiating elements are dual linearly polarized lp equilateral triangular patches with hybrid feeds. An important application for dual polarized antennas is base station antennas. A simplified model, using only feed 1, was implemented to study the effect of the aperture shape. A broadband proximitycoupled dualpolarized microstrip. Aperture coupled technique is the most commonly used technique in designing. Dual circularlypolarized equilateral triangular patch array.
Use separate feeds and ensure 90 phase difference between the modes by incorporating a 90 phase shift within one of the feed lines. The crosspolarisation levels in the e and hplanes for both polarisations are lower than 20 db. At least two such columns are combined such that an antenna is obtained which then becomes dual polarized. Dgw with defected square patch is first proposed to excite a single. At kaband, aperture coupled microstrip patches are selected as the radiating elements. The paper presents the design of a dualpolarized aperturecoupled microstrip patch antenna suitable for passive 5. This paper presents a new design of aperturecoupled patch antennas with modified hshaped coupling slots for achieving dualpolarization radiation with high isolation over a wide bandwidth. Pdf dualpolarized aperturecoupled wideband microstrip patch. This can foster more analog signal processing approaches for simplicity.
A dual linearly polarized antenna is one that is capable of iaunching two orthogonal polarized electromagnetic waves. Linear polarized patch antenna for satellite communication. A square microstrip patch on one substrate is coupled to a pair of microstriplines on another substrate via two orthogonal, rectangular apertures in a common ground plane. The microstrip patch is aperture coupled to a microstrip line located along the diagonal line of the patch. By using four shorting pins the 10db bandwidth of the antenna has increased from 24% to 50%. Us09144,598 19970903 19980831 high isolation dual polarized antenna system with microstripfed aperture coupled patches expired fee related us5945951a en priority applications 2 application number.
The wideband and dual polarized operation is achieved through the use of hshaped coupling slots. An antenna presenting improved polarization isolation is disclosed which presents at least two columns of rectangular microstrip or patch elements which each has a single, linear polarization. The enhanced bandwidth is achieved by using a stacked patch configuration and dumbbell shaped slots. A multilayer organic package with 64 dualpolarized. Aperture coupled patch antenna with dual slots which are fed by a dual portfeeding network is introduced recently 3, 4. By adding a parasitic disc patch, the bandwidth is effectively broadened. 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. Moreover, an aperture coupled feed yields better gain and radiation pattern for a dual polarized antenna aimed for wireless applications 712. A multilayer organic package with 64 dualpolarized antennas.
For a single source, the system has to somehow either select one polarization or the other or the system has to properly combine them. Kai chang recent days, antennas play an important role in wireless communication system. 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. A wideband highgain dualpolarized slot array patch. A new design for a dual polarized aperture coupled patch antenna is presented. A wideband dualpolarized patch antenna fed with the aperture. A wideband highgain dualpolarized slot array patch antenna. In this paper, with the application of dielectric resonator antennas dra, a novel design of a sharedaperture dualband dualpolarized dbdp array working in the kaku bands is proposed.
A wideband dualpolarized stacked microstrip patch antenna. A dualband circularly polarized aperturecoupled stacked. High isolation dualpolarized patch antenna with hybrid. A wideband circularly polarized patch antenna is proposed. These antennas with aperture coupled have many advantages, such as eliminating.
Sharedaperture multiband dualpolarized sar microstrip. Wideband dual linear polarized microstrip patch antenna a thesis by christopher 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. Aperture coupled microstrip antenna design and analysis. The defected square patch is called the perturbation element. Dualpolarized slotcoupled microstrip antenna with very high.
A novel dual polarized aperture coupled patch element with a single. 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. Model for the radio channel and the antenna reception derivation of the relation between power correlation and farfield coupling simulated antennas. Compared with other dual polarized 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. Design and performance analysis of dual band circularly polarized cslot patch antenna manoj kumar dubey, rahul vivek purohit abstractin this paper dual band aperture coupled circularly polarized cp cslotted antenna with a small frequency ratio exited through a. The patch antenna on high dielectric constant material. Possible applications of this cprda include new wireless.
There are many ways to implement polarization diversity antennas. Dual linearly polarized microstrip patch antenna coupled to a coaxial probe feed has been demonstrated in this study. Novel aperturecoupled 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. Abstract a new method for radiating dual or circular polarization with a printed circuit antenna element is described. S parameter plot of single patch dual feed aperture coupled antenna. Conclusion in this paper, a wideband aperturecoupled dualpolarized antenna with high isolation at cband has presented. Dual polarized microstrip patch antennas could provide. Aperture coupled microstrip antenna design and analysis using. A wideband dualpolarized patch antenna fed with the. Dual linearly polarized microstrip array antenna intechopen.
Recently i read a dual polarized antenna and have some questions to ask, the structure of the antenna is as follows. A broadband dualpolarization base station antenna element. 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 wideband dualpolarized slotcoupled stacked microstrip antenna with very high isolation and low crosspolarization is presented. The structure of the antenna is compact and easy to fabricate. High isolation dualpolarized patch antenna with hybrid ring. Introduction the microstrip antennas msas are the most. The dual polarized antenna yields a bandwidth of 20. Ultrawideband dualpolarized patch antenna with four. 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. The aperture coupled patch geometry has been extended to dual polarization. A broadband dualpolarized microstrip patch antenna with.
In this paper, a dual polarized patch antenna capacitively coupled through four feeds is proposed. In this communication, a dual polarized aperture coupled microstrip patch antenna with a broadbandwidth highisolation low cross polarization levels, and lowbackward radiation levels is designed and its features are presented. In this paper, a compact broadband dual polarized stacked patch antenna with the aperture coupled microstrip feed is proposed. Seriesfed aperturecoupled microstrip antennas and arrays. Le bihan et al dualpolarized aperturecoupled patch antennas polarization diversity principles enable tx and rx signal separation using a single antenna for fullduplex operation. Single polarization aperture fed antenna 37 dual feed dual polarization antema. Dual aperturecoupled microstrip antenna for dual or circular.
Highisolation dualpolarized microstrip antenna via substrate. The vertical polarization of the patch antenna is obtained by using an aperture coupled feed and the horizontal polarization is obtained by using a proximity feed. Design of striplinefed dualpolarization aperturecoupled stacked microstrip patch phased array antenna for wideband application. Broadband dualpolarized aperturecoupled patch antennas with. The aperture coupled microstrip antenna was developed by using cross slot aperture at the plane between feed line plane and ground plane. Schaubert, dual aperturecoupled microstrip antenna for dual or circular polarization, electron.
For broad bandwidth and easy integration with active circuits, it uses the aperturecoupled stacked patches. In general, two popular techniques for achieving dual polarization using aperturecoupled patch antennas are. 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. As the author said, the patch antenna is orthogonally fed by two cpws, the antenna can work at 2. Compact dual polarized aperture coupled microstrip patch antenna. The dualpolarized patch antennas applying probe director or coupled feeding have a limited impedance bandwidth or high crosspolarization 57. Figure 1 shows the geometry of the basic aperture coupled patch antenna. Various aperture coupled ring antennas were constructed and their performance measured. A polarization reconfigurable microstrip patch antenna is presented for wireless local area network wlan dual band operation 2. He invented the wideband uslot patch antenna and expanded the uslot technique to small size, dual triple band, and circular polarization applications. This is discussed in more detail in the following section. Besides linear polarization, it has been demonstrated that dual polarization and circular polarization can be obtained with aperture coupled elements.
Circularly polarized aperture coupled microstrip antenna. Abstract a new dualpolarized slotcoupled microstrip patch antenna is presented, which can achieve highisolation low cross polarization levels, a wide bandwidth, and low backward radiation levels. Broadband dualpolarized aperturecoupled patch antennas. At kaband, aperturecoupled microstrip patches are selected as the radiating elements. Pdf dual polarised aperturecoupled patch antenna using. However, in more conventional cases, txrx isolationcanbeensuredbyconnectingcirculatorsorexternal. Abstract in this paper, a compact broadband dualpolarized stacked patch antenna with the aperture coupled microstrip feed is proposed. Compact wideband dualpolarized microstrip patch antenna. Compact dual polarized aperture coupled microstrip patch antenna for.
These antennas should have high isolation and low cross polarization within their impedance bandwidth. Can be somewhat difficult to obtain true cp 0db axial ratio. The parameter study is done in detail to show the guideline of designing this antenna. This thesis includes the design, production and measurement of a wideband dual polarized xband aperture coupled microstrip patch antenna. Design and performance analysis of dual band circularly polarized cslot patch antenna manoj kumar dubey, rahul vivek purohit abstractin this paper dual band aperture coupled circularly polarized cp cslotted antenna with a small frequency ratio exited through a single feed is proposed for gps application. However, the isolation of dualpolarized antennas needs to be more enhanced according to their applications. The dualpolarized patch antennas normally have a multilayer structure.
A broadband dualpolarization base station antenna element with a coupling feed yuan he yejun he manos m. Cp bandwidths comparable to the impedance bandwidth of the patch antenna are usually possible. The dualpolarized patch antennas applying probe director or coupled. Both h and v polarization signals are input on the bottom c4 pads from ics, fan out on the m6 layer, and feed radiator structures located on the m12 and m14 layers, respectively. Dual polarization stacked microstrip patch antenna array. In this contribution a dual band, dual polarized microstrip antenna element for array applications is presented. The wide impedance and axial ratio bandwidths are achieved by the proposed feeding mechanism, which entails the use of a circular. For antenna engineers, obtaining high isolation and low cross polarization is a great challenge and many e. An aperture coupled patch can increase its bandwidth by. Jun, 2019 the aperture coupled patch antenna microstrip feedline, substrates, ground plane slot, and patch dimensions are varied to determine effects on antenna performance which eliminates the electrical connection between the radiating conductors and feed by employing dielectric substrates separated by a ground plane. The isolation and cross polarization have become better than 31. The aperture coupled patch antenna microstrip feedline, substrates, ground plane slot, and patch dimensions are varied to determine effects on antenna performance which eliminates the electrical connection between the radiating.