A dual polarized shorted microstrip patch antenna for wideband application kenny s. The antenna is a modified form of the conventional eshaped patch, used to broaden the impedance bandwidth. By continuing to browse this site you agree to us using cookies as described in about cookies. Basically, the structure could be seen as a patch antenna electromagnetically coupled to the lshaped capacitively loaded monopole.
The multisection lines are directly connected to the patch radiator. Linear polarized patch antenna for satellite communication. Pdf a wideband dualpolarized antenna using shorted dipoles. Wideband circularly polarized eshaped patch antenna for. Moreover, a wideband antenna covering the b2 band from 1. A folded metal doublelayer magnetoelectric dipole is deployed to generate the dual resonant frequencies. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. A wideband highgain dual polarized slot array patch. This part designs a broadband dualfrequency printed monopole antenna for wlan, which works in two frequency bands of 2. Compact wideband dual polarized microstrip patch antenna k. A wideband patch antenna with the feature of circular received 17 november 2019, accepted 7 january 2020, scheduled 30 january 2020. The design parameters of the antenna are optimized using commercial softwares microwave office and zeland ie3d to get the suitable parameters and radiation patterns. In this paper, a wideband dual band dual polarized magnetoelectric antenna is presented.
For the sake of structural simplicity, low profile, and ease of mass production, printed dipoles are adopted as the dual polarized antenna element. In this design we are providing the rotation of the patch with an angle of 45 degrees. Design of miniaturized dualband microstrip antenna for wlan. The proposed antenna consists of two pairs of orthogonal planar quasiopensleeve dipoles along the centerlines, a balanced feeding structure and a square ground plane.
The design of a dual linearly polarized patch antenna for kuband is presented in this study. Simulated and measured gain of the proposed antenna. A broadband dualpolarized armoverlapped dipole antenna. Broadband design of dual and circularly polarized antennas. A wideband dual polarized antenna for wlan, wimax, and lte base station applications is presented in this paper.
Dual polarized wideband aperture stacked patch antennas. Stuchly department of electrical and computer engineering university of victoria, victoria, b. It provides a wide bandwidth for wireless high data rate communication systems while its fabrication process is very complex. A wideband dual polarized antenna using planar quasiopen. In, a wideband dual polarized patch antenna employing a broadband balun has been proposed. Design of striplinefed dual polarization aperturecoupled stacked microstrip patch phased array antenna for wideband application. By contrast, slot antenna has a planar structure but with high back radiation 14. Compact wideband dualpolarized microstrip patch antenna k. And a coupling slice instead of a resistive load is used as matching load of the. Patch antenna 1 and slot antenna 2 are easy to realize dual polarization. Wideband rectangular microstrip patch antenna using lprobe. The antenna has a compact structure and the total size is 15x15 mm 2. The dual polarized patch antenna in 3 was designed to achieve good isolation using a pair of conventional 180narrowband baluns in a dual feed configuration.
For unidirectional radiation, a metallic ground plane. 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. Theres endless depth to it and it doesnt really require a ton of math or coding. A differential feed lprobe patch antenna has been proposed ref. The proposed 90deg broadband balun delivers good impedance matching, balanced power splitting and consistent 90deg plusmn5deg phase shifting, across. Research article wideband, lowprofile, dualpolarized. Broadband dualpolarized base station antenna for fifth. An experimental study of a dual polarized lprobe patch antenna is presented. By using the improved dipole, the proposed antenna achieves a common impedance bandwidth of 62% ranging from 1. To summarize and compare some of the stateoftheart work in wideband dual polarized patch antenna designs, table 1 lists the performances in terms of. A pair of novel 180deg broadband microstrip baluns are used to feed a dualpolarized patch antenna. Wideband balun design with ferrite cores senior project california polytechnic state university, san luis obispo paul biggins june 21, 2014. This report examines the possibility of developing a broadband antenna element for base station antenna applications, which operates in the 17102690 mhz frequency band. For verification, a dual polarized patch antenna is implemented and its fabrication prototype is shown in figure 7.
Keywords dualpolarized antenna, cross dipole, balun, high isolation, low cross polarization 1 introduction in recent years, designs of broadband dualpolarized antenna with compact structure become more and more popular in mobile communication systems due to the particular advantagesafor instance, dualpolarized antennas are widely used. Wideband dual linear polarized microstrip patch antenna. The design and realization of a lowprofile wideband dual polarized patch antenna with high isolation and low cross polarization has been presented. Wilson, graduate student radar and communications lab department of electrical engineering penn state university, state college, pa design goal design a broadband microstrip antenna operating over the 450700 mhz frequency range with a gain of at least 8 db. Units by antenna type end fed antennas balun designs.
Multitechnique broadband microstrip patch antenna design. Design of dualpolarized lprobe patch antenna arrays with. Simulation and equivalent circuit analysis of the antenna. The feeding circuit and patch are on the same layer, which makes it easy for integration. A new method to design wideband differentially driven dualpolarized antenna with high common mode suppression and high port isolation is presented. Two microstrip lines terminated with circular patches are printed on the backside of the bottom substrate for feeding the radiating patches, while on the other side. The simulated and measured parameters of the proposed antenna are shown in figure 8. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. A wideband circularly polarized patch antenna for 60 ghz wireless communications 99.
Design of miniaturized dualband broadband printed antennas. The proposed planar balun consists of a wideband wilkinson power divider and a noncoupledline broadband 180spl deg phase shifter. However, due to the close proximity, the coupling between the two input ports remains an important problem. Two wideband feeding approaches are employed in the design of a dual polarized patch antenna. Unfortunately, it is hard to design a balun suitable to cover all the requirements of wideband. The antenna has four sequentially arranged feedlines, and each pair of opposite feedlines in the same direction are excited by antiphase, which provides. There is no coupling structure, and consequently, the parasitic radiation from the feeding circuit can be minimised. Nov 10, 2017 different from the conventional designs, this sinuous antenna is realized in a conical form and no ground plane or absorptive cavity is required to obtain unidirectional radiation. A compact dual polarized wideband patch antenna array for the unlicensed 60 ghz band is designed in. Wideband dual linearly polarized patch array antenna.
Broadband circular polarized antenna with lshaped patch for 2. Introduction bandwidth enhancement by multiple resonances is a widely used technique for microstrip patch antennas. Ultra wideband dual polarized patch antenna with four capacitively coupled feeds, ieee transactions on antennas and propagation, vol. The eigenvalue, eigencurrent, characteristic pattern, and modal weighting coefficient are analyzed to bring physical insight to this kind of antenna.
This band covers the high band frequencies for the current 2g and 3g system, as well as the requirements for the coming lte system. Wideband dualpolarized patch antenna with broadband baluns abstract. Unfortunately, it is hard to design a balun suitable to cover all the requirements of wideband dual polarized antennas. Design of broadband dualpolarized patch antenna with. The planar quasiopensleeve dipole comprises a pair of bowtieshaped planar dipoles. A novel dual polarized patch antenna for ultrawideband uwb applications is presented. Simulated and measured normalized radiation patterns at 2. These antennas are also known as wideband dipoles as an example, method of moment simulations will be performed on dipoles of length 1.
A broadband dualpolarized base station antenna with sturdy construction is presented in this letter. Info 10500 belvedere denton, tx 76207 usa call us at 8178327197. Broadband dual polarised antenna with wideband decoupling. For unidirectional radiation, a metallic ground plane is needed to suppress back. The aperturecoupled antenna element has four layers of substrates. Both the monopole and patch have its own resonances which, if properly combined, give rise to a broadband behavior. Asymmetric circular shaped slotted patch antenna for 915 mhz. Design of broadband dualpolarized antenna with integrated. Jeon, design of wideband dual polarized microstrip antennas, general assembly and scientific symposium, aug. Obviously these dual polarized patch antennas with a multilayer structure have a complicated configuration. The antenna consists of a square patch and four capacitively coupled feeds to enhance the impedance bandwidth. Circular polarization wideband eshaped patch antenna for.
Compact wideband dualpolarized microstrip patch antenna. A wideband dual polarized planar antenna is designed and analyzed by using the theory of characteristic modes tcm. The detailed parameters of the antenna structure and packaging are listed in. A novel patch array antenna with wideband and dual sense. Dual polarized lprobe patch antennas afford wide impedance bandwidth and increased channel capacity. Broadband low crosspolarization patch antenna guo 2007. A wideband differentially driven dualpolarized antenna by. A broadband dual circularly polarized conical fourarm. By contrast, slot antenna has a planar structure but with high back radiation. About cookies, including instructions on how to turn off cookies if you wish to do so.
We demonstrate that for a dual polarized quadruple lprobe square patch antenna, the use of the proposed 180deg broadband balun. A 104% impedance bandwidth and a 60% gain bandwidth are obtained. A novel 90deg broadband balun comprising a broadband 90deg schiffman phase shifter is introduced as a means of enhancing the wideband circular polarization performance of dual fed type microstrip antennas. Wideband, lowprofile, dualpolarized slot antenna with an. A compact broadband dualpolarized antenna array for base. A compact and broadband balun design for lte applications. Broadband cp patch antenna with lshaped ground plane for 2.
A wideband circularly polarised patch antenna with multisection. Design of wideband dualpolarized planar antenna using. A broadband dualpolarized base station antenna with. Pdf ultrawideband dualpolarized patch antenna with. I think i like making antenna even more than using antenna. A lowcost, easytofabricate, wideband and highgain dual polarized array antenna employing an innovative microstrip slot patch antenna element is designed and fabricated. Developed feed also mechanically stabilizes the patch and enables easier and more reliable fabrication and assembly. To summarize and compare some of the stateoftheart work in wideband dualpolarized patch antenna designs, table 1 lists the performances in terms of. Wideband circularly polarised patch antenna with multi. A pair of novel 180 broadband microstrip baluns, printed on the backside of the bottom substrate, are utilized to feed the antenna. Xie, a wideband antenna with dual printed lprobes for crosspolarization suppression, ieee antennas and wireless propagation letters, vol.
A circular patch antenna utilizing the proposed 90deg broadband balun is shown to attain measured impedances 11 broadband balun comprising a broadband 90deg schiffman phase shifter is introduced as a means of enhancing the wideband circular polarization performance of dual fed type microstrip antennas. Illustrative designs of multiband, wideband and ebgenhanced. Dualpolarized aperturecoupled wideband microstrip patch. Broadband circular polarized antenna dual coupled feeds for 1.
A broadband singlefeed circularly polarized patch antenna. A broadband dualpolarized printed antenna ruina lian, shaoshuai zhang, yingzeng yin, xueyan song, and hao zhang abstracta lowpro. The new design was simulated and validated by the measurement. The proposed antenna introduces two layers of radiating patches to realize the dual frequency characteristic. Design of wideband circularly polarized capacitive fed. Wideband circularly polarized patch antenna using broadband baluns abstract. Design of a wideband dualpolarized stacked patch antenna.
In 18, an evolved version of an eshaped patch with unequal slots to produce cp fields with wideband characteristics 9. High isolation dualpolarized patch antenna with hybrid. A new wideband microstrip balun implemented on a singlelayer printed circuit board pcb is presented in this letter. Wideband dualpolarized patch antenna with broadband baluns. The antenna with the broadband balun exhibits a wide measured impedance bandwidth swr baluns. Therefore, the eshaped patch antenna becomes attractive for wideband polarization agile designs. Wideband dualpolarized patch antenna with broadband. The dual band dual polarized antenna is the rst one used by folded metal doublelayer, and polygon baluns. Design of a wideband dual polarized stacked patch antenna. Design of a broadband antenna element for lte base station. Kai chang recent days, antennas play an important role in wireless communication system. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. Patch antenna feed length and width were adjusted through hfss simulations to maximize antenna impedance bandwidth, see fig. The strip feedline network is formed parallel feeding method.
A novel design method of wideband dual polarized antenna is presented by using shorted dipoles, integrated baluns, and crossed feed lines. The results demonstrate that there are two modes resonant in the operating band for each polarization. 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. For obtaining dual polarization, using a square annular cavity in the ground plane of a broadband microstrip patch antenna, with proximitycoupling as the feeding mechanism, is proposed in this paper. We demonstrate that for a dual polarized quadruple lprobe square patch antenna, the use of the proposed 180deg broadband balun pair, in place of a. Unfortunately,itishardtodesignabalun suitable to cover all the requirements of wideband dual polarizedantennas. First, two orthogonal dipoles are etched on a substrate as main radiator forming dual polarization. To demonstrate the design methodology, one prototype is realized. A wideband circularly polarized patch antenna for 60 ghz. A compact broadband dualpolarized antenna array for base stations abstract.
A broadband singlefeed circularly polarized patch antenna with wide beamwidth is presented. In, a wideband dualpolarized patch antenna employing a broadband balun has been proposed. Deng et al wideband highisolated dual polarized patch antenna using two different balun feedings 1619 fig. A broadband dual polarised antenna with wideband decoupling structure is presented.
The beamforming network for dual circularly polarized operations consists of a wideband quadrature coupler and two wideband baluns, and an auxiliary feeding patch is. In this paper, a novel broadband patch antenna feeding technique referred to as differential cylindrical probes is demonstrated. Design of dual band dual polarized microstrip patch antennas. Hence, a dipole antenna can be made more broadband by increasing the radius a of the dipole. In general, a few methods for obtaining wideband circular polarization in microstrip antenna are i coplanar capacitive fed fractal microstrip antenna was presented to produce wide band circularly polarized beam, an axial ratio bw of 7% was reported in 12 ii by using crossed slot in the square patch, an impedance bw of 19% and ar bw of.
One of interesting uwb printed monopole antenna designs is a trapeziform ground plane with a rectangular patch monopole aroused from the discone antenna, where the rectangular patch is used to replace the disc, the trapeziform ground plane is used to replace the cone, and the cpw is used to replace the coaxial feed, as shown in fig. In is a square patch antenna, length and width of the antenna is 16. The 180deg broadband balun delivers equal amplitude power division and consistent 180deg plusmn5deg phase shifting over a wide bandwidth 50%. Unfortunately, it is hard to design a balun suitable to. Ultrawideband dualpolarized patch antenna with four. A new technique to achieve a circularly polarized probefed singlelayer microstrip patch antenna with a wideband axial ratio is proposed. Figure 7 shows the simulated and measured swr comparison for the dual l. Abstractin this paper, a dual band antenna in orthogonal polarization with stacked configuration is proposed. A new wideband planar balun on a singlelayer pcb semantic. A pair of novel 180deg broadband microstrip baluns are used to feed a dual polarized patch antenna. The square patch with triangular slots is adopted in this design.