In this paper, a patch antenna fed by the substrateintegrated meandering probe simprobe is proposed to. Differential feeding technique is used to reduce the crosspolarization level of the designed patch antenna. A patch antenna is a type of radio antenna with a low profile, which can be mounted on a flat surface. Dualpolarized filtering antenna with high selectivity and. In this paper, a low crosspolarization improvedgain rectangular patch antenna is presented. This is a quick video demonstrating cross polarization loss with linear and circular antennas. Using different farfield radiation phase symmetries of electromagnetic multipoles for the patch, the crosspolarization can be almost cancelled while the copolarization be kept. A very low crosspolarization level patch antenna is proposed for phased applications. The proposed antenna contains two pairs of tshaped slots on the two bowtieshaped patches separately. The coupling between the patch elements and the transmission lines is realized using microstrip directional couplers.
Low rcs patch antenna based on the metasurface composed of. The performance of four dualpolarized square patch antennas has been compared when the interconnections between patches vary 119. A broadband crossdipole with high isolation and low crosspolarisation for base station applications in mobile wireless communications is presented in this study. Low crosspolarization improvedgain rectangular patch antenna. Abstractin this paper, a low radar cross section rcs patch antenna based on the 3bit metasurface composed of linear polarization conversion elements is designed. The array antenna is required to possess matched main beams, high input isolation, and low crosspolarization level at broadside and scan angles up to 45. Electronics and electrical industries antennas electronics comparative analysis. High isolation dualpolarized patch antenna with hybrid. The optimum geometric arrangement of interconnections exhibited a crosspolarization level of. Irjet low crosspolarization differential feed patch. Triangular and circular shaped slots are embedded in the patch of antenna. Polarization analysis for an xband microstrip patch antenna open live script in its most basic form, a microstrip patch antenna consists of a radiating patch on one side of a dielectric substrate and a ground plane on the other side.
A wide bandwidth folded vshaped patch antenna with stable high gain and low crosspolarization characteristics feibiao dong1,wenbinlin1, xiaohong guo2, and guoguang wang2 abstractawide bandwidthfolded vshapedpatch antenna with high gain and low cross polarization is presented. About cookies, including instructions on how to turn off cookies if you wish to do so. Low crosspolarization differential feed patch antenna array. Dualpolarized filtering antenna with high selectivity and low cross polarization abstract. Antenna cross polarization loss demonstration youtube. The characteristics of lprobe fed dualband patch antenna are also presented for. By introducing two short pins, the isolation between the two ports. A broadband dualpolarization base station antenna element with a coupling feed. In one embodiment, the antenna system includes four tshaped dipole antenna elements mounted on a ground plane, forming a side of a square shaped array. These antennas should have high isolation and low crosspolarization within their impedance bandwidth. Low crosspolarization, highisolation microstrip patch antenna. Among different possible choices for a single element, the balancedfeed microstrip patch antenna has the advantage of the low crosspolarization radiation pattern, highisolation between. The fundamentals of patch antenna design and performance. An anisotropic dielectric realized by layered ceramic structures was adopted to design a low crosspolarization cshaped patch antenna.
A dualpolarized shorted microstrip patch antenna for wideband application kenny s. Low crosspolarization, highisolation microstrip patch antenna array for multi mission applications. Polarization analysis for an xband microstrip patch. Dual polarization stacked microstrip patch antenna array with very low crosspolarization.
Improved polarization purity for circular microstrip. Abstracta coaxfeed wideband dualpolarized patch antenna with low cross polarization and high port isolation is presented in this letter. A compact wideband hybrid dielectric resonator antenna. In this paper, tripleband stacked microstrip patch antennas mpas are presented with wide impedance bandwidth and suppressed crosspolarization level. A dualfeed dualpolarized microstrip antenna with low cross polarization and high isolation is experimentally studied. For instance, if the fields from an antenna are meant to be horizontally polarized, the crosspolarization in this case is vertical polarization. The basics of patch antennas, updated orban microwave. Consequently, a directed polarization of the radiated patch can be excited symmetrically through port 2, as shown in fig. Low crosspolarization broadband microstrip patch antenna.
It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane. At first, 3bit coding metamaterials are constructed by a sequence of eight coded unit cells, which have a. Its hybrid feed design has been implemented, and the vertical and horizontal polarizations are excited by a balancedprobe feed and a slotcoupled feed, respectively. However, the reported work in only demonstrates low crosspolarization levels only in one frequency band. Cross polarization sometimes written xpol, in antenna slang is the polarization orthogonal to the polarization being discussed. Abstract a low crosspolarization dualpolarized patch antenna is designed for phased array radar applications. I e e e transactions on antennas and propagation, 4910, 93 1402. In 8, a coaxfeed wideband dualpolarized patch antenna with low cross polarization and high port isolation is presented, achieving a 10db return loss bandwidth of 1. The anisotropic dielectric performs as a substrate and can cause additional crosspolarized fields which are able to cancel the crosspolarized fields generated by the cshaped patch itself, and then reduce the crosspolarization level. This type of antenna had its first intense development in the. A wide bandwidth folded vshaped patch antenna with. Highisolation, low crosspolarization, dual polarization. In another embodiment, the antenna system includes seven tshaped dipole antenna elements mounted on a ground plane to.
However, a few other techniques such as aperture coupling 16, metamaterial based 17,18. In this paper, a new design technique for enhancing gain and low crosspolarization that improves the performance of a conventional microstrip patch antenna is proposed. Row, dualfeed dualpolarized patch antenna with low cross polarization and high. Polarization analysis for an xband microstrip patch antenna. Omnidirectional multiband stacked microstrip patch. Dualpolarized aperturecoupled wideband microstrip patch. The design of a dualpolarization frequency scanning array of microstrip patch antennas is presented. In this way, we can now achieve high gain, stable and symmetrical e. A microstrip or patch antenna is a lowprofile antenna that has a number of advantages over other antennas. A patchground shorting pin with defected patch structure dps is introduced to suppress the crosspolarization level. This structure changes the path of the current and keeps the cross polarization under 40 db. Luk,design of dualpolarized lprobe patch antenna arrays with high isolation, ieee trans.
However, the rectangular and circular patches, shown in figure 2. A patchground shorting pin with defected patch structure dps is. This paper presents a highisolation, low crosspolarization dualpolarized patch antenna for multifunction phased array radar applications. Besides, the air loaded meandering probe increases the fabrication tolerance. Dual band x shape microstrip patch antenna for satellite. Slotloaded microstrip patches are fed with meandered microstrip line supported by a semiground plane structure. The copolarization to crosspolarization ratios ctcr in hplane of the hmsa with a pair of shorting posts has been reduced substantially by. Polarization antenna polarization cross polarization. Us6310584b1 low profile high polarization purity dual. This paper presents a dualpolarized patch antenna with quasielliptic bandpass responses. The design and development of a highperformance, dualpolarization, hybrid aperturecoupled microstrip patch antenna are presented. Low crosspolarization, highisolation microstrip patch. Dual polarization stacked microstrip patch antenna array with very low crosspolarization article in ieee transactions on antennas and propagation 4910. Crosspolarization suppression for patch array antennas.
They are the original type of microstrip antenna described by howell in 1972. Unfortunately, while these antennas exhibit lower crosspolarization than the aperture coupling types, they require much more complex structures and may not be practical for all engineering applications. Dualpolarization frequency scanning microstrip array. Dualpolarized antennas in modern communication systems have used for combating multipath and fading effects. It can be seen in figure 14a that, after the integration of the slot into the patch and superstrate the crosspolarization level in the hplane is degraded. One of the two modes is excited by an aperturecoupled feed, which is comprised of a compact resonant annularring slot and a tshaped microstrip feed. Dual polarization stacked microstrip patch antenna array. Dualpolarized microstrip patch antennas could provide these features with low cost and easy fabrication. Its hybrid feed design has been implemented, and the vertical and horizontal polarizations are excited by a balanced.
Wideband duallayer patch antenna fed by a modified l. A broadband dualpolarization base station antenna element. Duallypolarized shorted microstrip patch antenna coupled to a. A low profile shortedpatch antenna spa with enhanced bandwidth and reduced the hplane crosspolarization crosspol is proposed in this communication. Research article by international journal of antennas and propagation. With the rapid development of wireless communication systems, the demand for dualpolarized patch antennas with broadband, low crosspolarization, and high porttoport isolation has been gradually growing. A high reflective frequency selective surface hrfss superstrate is designed and placed over the proposed antenna at an optimized position to intensify the gain. The metallic patch can take many different configurations. Research article dualband patch antenna fed by meandering. Properties of a basic microstrip patch a microstrip or patch antenna is a lowprofile antenna that has a number of advantages over other antennas.
A coaxfeed wideband dualpolarized patch antenna with low cross polarization and high port isolation is presented in this letter. Crosspolarization suppression in cshaped microstrip. Lots of studies on improving the performances in theses domains of dualpolarized patch antennas have been reported. Moreover, the dualband patch antenna achieves low crosspolarization levels within the two bands due to the symmetrical current distribution on the patch and the meandering probe. However, due to the propagation of the dominant transverse magnetic tmmode, the crosspolarization of the patch antennas is extremely low. Dualfeed dualpolarized patch antenna with low cross. Dualband patch antenna fed by meandering probe for low. Patch antennas the fundamentals of patch antenna design and performance by gary breed editorial director m icrostrip patch antennas also just called patch antennas are among the most common antenna types in use today, particularly in the popular frequency range of 1 to 6 ghz. Design and discussion of a broadband crossdipole with. Wideband patch antenna with stable high gain and low. Similarly, in 14,15, different dgs structures are employed to suppress the crosspolarization of rectangular patch antennas. These antennas consist of a metallic patch on a grounded substrate. A simple and compact microstrip antenna of circular geometry with circular cut defected patch surface has been proposed for significant suppression of crosspolarized xp radiation compared with maximum copolarized gain without affecting the co.
Wideband dualpolarized patch antenna with low cross. Cross polarization suppression is achieved by applying a differential feed configuration to each element for the vertical polarization and an imaged feed arrangement with. Two different feed mechanisms are designed to excite a dual orthogonal linearlypolarized mode from a single radiating patch. Microstrip line fed shorted hexagonal microstrip antennas. This paper presents a novel wideband probe fed inverted multiple slot microstrip patch antenna. An antenna system for use in cellular and other wireless communication includes a dual polarized compact antenna array. The designed array antenna is fabricated and 30 db crosspolarization level has been achieved from measurement results. Recently, due to the demand for polarimetric radar and. The proposed antenna is mainly composed of a feeding network, a driven patch, and a stacked patch, with its entire height being 0.
559 896 95 592 316 810 1358 947 1336 1227 1524 1542 1245 88 973 1152 285 732 1667 852 95 1650 1198 855 216 231 932 405 558 232 827 42 449 412 256 198 1238 1058 728