Two asymmetric pairs of hexagonal slots are etched on the four sides of the patch. Design, implementation and experimental comparison between. Design of circular polarized dual band patch antenna. The two arms of each bent slot have the same length and are perpendicular to each. Because of their advantages such as low cost, compact size, low profile,ability to support dualfrequency and circular polarization operation, microstrip patch antennas have become widely used in gps antenna designs. The most widely used printedcircuit antenna is the microstrip patch, which in its simplest form is a rectangular or circular patch of metal fed by the microstrip upper conductor. Design, implementation and experimental comparison. Analytical equations for calculating the resonant frequencies at both.
A dual band dualpolarized microstrip array antenna for base stations article pdf available in progress in electromagnetics research 123. A dual band circularly polarized stacked annularring patch antenna is presented in this letter. A new dualband and dualpolarized antenna is investigated in this letter. Kaband antenna arrays with dualfrequency and dualpolarized. By providing the center element of the array antenna in a common location with the feed of the reflector antenna, a dual band radio frequency antenna system is provided which is more compact with improved radiation characteristics than known similar configured antennas. Compact dualpolarized microstrip antenna structure and results figure 1 shows the geometry of the compact dualpolarized square patch microstrip antenna with four bent slots parallel to the patchs central lines 1. Circularly polarized cp dual frequency crossshaped slotted patch antenna on 1. Wideband duallinear polarized microstrip patch antenna. Singlefeed circularly polarized stacked patch antenna. A novel and compact dual band dual sense circularly polarized microstrip patch antenna with single coaxial feed has been reported in the present work. With such an arrangement, an improved dual band antenna system is provided. Design simulation and fabrication of microstrip patch antenna.
Simulations and tests shows that the antenna is circular polarized and have a. Pdf dual band and dual polarized microstrip patch antenna. Two pair of orthogonal slits is cut on the lower circular patch for achieving circular polarization and truncated corner square patch is used as the upper parasitic element. The design parameters of the antenna have been calculated using the transmission line model and the cavity model. The frequency ratio of the two resonant bands can be easily changed by adjusting the width of the curved slots. Furthermore, the feed port along the diagonal line of the square patch makes it possible to radiate different polarization at the two bands. A dual polarized stacked patch antenna array 100 that operates at two different frequencies 320, 330. By stacking two different cornertruncated square patches in a dielectric substrate layer, the microstrip antenna for dualfrequency circular polarization cp can be achieved with 11. In order to design a circular microstrip antenna for multiband applications suitable dielectric substrate of relative permittivity r4. A dual band dual polarization slot patch antenna for gps and. Microstrip antennas have high q q 100 is common, which means that they have small bandwidths. Pdf dual band, dual slant polarized microstrip patch array. The design specifications for the antenna are given as below. The second antenna is a dualband microstrip antenna, which works in two frequency bands of 2.
A dualband and dualpolarized stacked shared aperture patch antenna with low crosspolarization and high isolation is presented. Investigation of a novel dual band microstripwaveguide hybrid antenna element mohammad t. Different slot and feeding types are used in the xband antenna design to improve the crosspolarization and isolation. So, stacked substrate with twolayer radiating patch is introduced in the proposed antenna to. Index terms microstrip antenna, dual band antenna, patch antenna, circular polarization, circularly polarized antenna, gps antenna. Singlefeed circularly polarized stacked patch antenna with. Jun 27, 2016 in addition, the gain of the antenna is greater than 4 db, and the volume of this antenna is only 16. Jul 15, 2014 dual band and dual polarized siwfed microstrip patch antenna abstract. Pdf design of dualband and dualpolarized microstrip antenna. A dualband circularly polarized stacked microstrip antenna for ism bands 2. Single feed dual band circularly polarized microstrip. A compact dualband dualpolarized microstrip antenna array for. Dual band and dual polarized microstrip patch antenna ethesis. Then the application of air bridge in the dualpolarized antenna has reported in 1517.
Kartikeyan3 millimeter wave laboratory, department of electronics and computer engineering, indian institute of technology, roorkee247667, india1,2,3. Antenna is all important part of gps receivers,there is a great need for the design and production of new antennas which are fully compatible with modernized signals. The design and analysis of the antennas are performed numerically using ie3d code 12. Another structure is to combine lowfrequency print dipoles with highfrequency patch antennas 14, 15. Chapter 2 presents the basic theory of mpas, including the basic structures, feeding techniques and. Ep2270924a1 compact single feed dualpolarized dual. Dualband and dualpolarized siwfed microstrip patch antenna abstract. It is realised by integrating a dual band dual fed patch antenna with a dual band branchline coupler in a compact multilayer structure. Each probe excites one of the two fundamental modes of the antenna which are linearly polarized and orthogonal to each other. Dualband and dualpolarized siwfed microstrip patch. A compact circularly polarized multiband microstrip patch.
A microstrip fed graphene based dualpolarized patch antenna is proposed for the first time in thz regime. Furthermore, a triple band hshaped slot antenna excited by proximity coupling of. Download citation dual band and dual polarized microstrip patch antenna in todays modern communication industry, antennas are the. Design of single feed dual band dual polarized microstrip antenna with defected ground structure for aeronautical and radio navigation applications p. Tunable hshaped microstrip antenna with dual feeding. References 1 pramod benjwal, a k gautam square microstrip antenna for elliptical polarization operation international journal of computer applications 0975 8887 volume 36 no. The stacked patch antenna array includes a ground plane 190 that is common to each planar patch array antenna. Design of miniaturized dualband microstrip antenna for.
Design of dual band dual polarized microstrip patch antennas core. Geometry of a duallypolarized shorted microstrip patch antenna coupled to. So, stacked substrate with twolayer radiating patch is introduced in the proposed antenna to realize dualband characteristic. Very few designs with dual band dual polarized operations have been reported for application in mobile communication systems.
A dumbbell shape dgs is also incorporated in the common ground plane to reduce lower patch size by 10. The location of the slots with respect to the patch is defined by the dimensions w and l figure 1a shows the geometric layout of a proposed singlefeed circularly polarized slotted rectangular microstrip patch antenna. Dual band, dual slant polarized microstrip patch array antenna 89 coherent optical wired communication us ing dsp, i ndian journal of science and technology, issn. Index termscircular polarization, dualband antennas, hy brid branchline couplers, microstrip patch antennas, satellite communications. The design of a frequency reconfigurable dual band hshaped microstrip antenna fed by two coaxial probes is presented. A dual polarized triple band stacked elliptical microstrip. The wband antenna is a dual polarized cassegrain reflector antenna which is nearly invisible at xband. The design of a frequency reconfigurable dualband hshaped microstrip antenna fed by two coaxial probes is presented. This antenna offers channel isolation better than 25 db, and is more compact compared to a conventional rectangular patch. This antenna consists of a microstrip feed line, a square annular slot and two embedded inverted l. Dual polarization stacked microstrip patch antenna array. These dual ports provide vertical and horizontal polarized terahertz radiations in their respective port directions.
A dualband slotembedded microstrip antenna for dual. The main difficulty of the microstrip antenna is its narrow bandwidth. The analysis of a single patch microstrip antenna based on the impedance model, emphasizing mainly the design considerations for dualband and. Dual band and dual polarized microstrip patch antenna electronics and communication engineering. A dual port dual polarized compact microstrip antenna for avoiding cross coupling between the two frequency bands is proposed and analyzed. In the proposed design a size reduction of 50% with a high isolation38dband low crosspolarization level is demonstrated, albeit, with a reduction in the broadside directivity by 3. Design and analysis of a dualpolarized graphene based. The patch antenna is designed to operate simultaneously at around 30 and 20 ghz, the up and downlink frequencies of modern ka band satellite communication systems. The subtending angle of the slot can be adjusted for operating frequency tuning and band spacing ratio.
The antenna is operating in lte band ii having frequencies of 1850 mhz1910 mhz which is. Dualband circularly polarized microstrip antenna for. Very few designs with dualband dualpolarized operations have been reported for application in mobile communication systems. Geometry of the aperturecoupled stackedpatch microstrip gps antenna. A cpwfed dual band dual polarized antenna for shortrange communication applications is designed.
A dualband dualpolarized microstrip array antenna for base stations article pdf available in progress in electromagnetics research 123. Design and performance analysis of dual band circularly. Pdf dual band, dual slant polarized microstrip patch. The proposed stacked antenna has two resonating elements with lower layer consisting of a truncated corner square patch and upper layer with an elliptical patch. Geometry of a dually polarized shorted microstrip patch antenna coupled to. Highisolation dualpolarized microstrip antenna via. The analysis of a single patch microstrip antenna based on the impedance model, emphasizing mainly the design considerations for dual band and dual polarization, is presented here. Two longitudinal and transverse slots on the broad wall of the substrate integrated waveguide siw are responsible for creating two different frequency bands with distinct polarization. Dual polarization stacked microstrip patch antenna array with. A new dual band and dual polarized antenna is investigated in this letter.
A singlefeed dualband circularly polarized stacked microstrip patch antenna with a smallfrequency ratio is presented. Highisolation dualpolarized microstrip antenna via substrate. Dual band and dual polarized microstrip patch antenna core. The stacked patch antenna array 100 has a single planar patch antenna subarray 101, 150 disposed on opposite sides of a dielectric substrate. Sharma, dual band circularly polarized modified rectangular patch antenna polarization in both bands.
Design simulation and fabrication of microstrip patch antenna 349 the proposed antenna is designed in lte band ii for 4g mimo communication. A dualband circularly polarized aperturecoupled stacked. Single feed dual band circularly polarized microstrip patch. A dualband dualpolarized circular microstrip patch antenna with 10 units of curved slots embedded on the ground plane is designed and fabricated. The thesis provides a detailed study of the design of probefed rectangular microstrip patch antenna to facilitate dual polarized, dual band operation. Pdf a dualband dualpolarized microstrip array antenna. Design of single feed dual band dual polarized microstrip antenna. The design is based on a stacked patch antenna composed of an upper circular patch and a lower ring patch. These dualports provide vertical and horizontal polarized terahertz radiations in. Dualband and dualpolarized siwfed microstrip patch antenna.
In this contribution a dualband, dualpolarized microstrip antenna element for array applications is presented. In 15 a dual and wide band aperture stacked patch antenna with doublesided notches has been presented. Design of dual band dual polarized microstrip patch antennas. The latter is required since the reflectors of the wband antenna are disposed in front. Dualwideband and dualpolarized shared aperture antenna. Asymmetric crossshaped slots are embedded in the middle of the square patch for cp radiation and four hexagonal slots are etched on the four sides of the.
Asymmetric crossshaped slots are embedded in the middle of the square patch for cp radiation and four hexagonal slots are etched on the four sides of. In this contribution a dual band, dual polarized microstrip antenna element for array applications is presented. The design of dual band circularly polarized patch antenna. The antenna is symmetrically loaded with four varactor diodes to simultaneously tune these two modes. 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. Department of electronics and communication engineering national institute of technology rourkela 769008 certificate this is to certify that the work in the thesis entitled dual band and dual polarized. Dual band and dual polarized microstrip patch antenna. First of all, the stacked patch can realize dualband operation, and the duallayer structure o.
Adopted from a cpwfed rectangular patch antenna for wlanwimax applications. Single feed dual band circularly polarized microstrip patch antenna written by saurav mehta, pradeep kumar published on 20150223 download full article with reference data and citations. A microstrip fed graphene based dual polarized patch antenna is proposed for the first time in thz regime. A dualpolarized stacked patch antenna array 100 that operates at two different frequencies 320, 330. Thus the element and feed line, and usually other elements, power dividers, etc. Kawser abstract microstrip antennas are low in profile and light in weight and they are now developed for many applications. A dual frequency aperture coupled patch antenna may provide a substitute to large bandwidth planner antenna. The antenna is composed of a single graphene patch fed by dual ports oriented orthogonally. Microstrip antenna an overview sciencedirect topics. Consnarrow bandwidth low efficiency low gain figure 1 microstrip antenna 1 1. Dual band and dual polarized microstrip patch antenna thesis submitted in partial ful. One major difference between the cband and the lband antenna arrays is the 8% relative bandwidth required at lband compared to only 2% at cband. In this paper, a single coaxial feed dual polarized triple band stacked microstrip patch antenna for wireless applications is presented. Dualband dualpolarization microstrip antenna ieee conference.
A dual port, dual polarized microstrip patch antenna with high interport isolation along with self interference suppression at analog and digital stages, is required to realize simultaneous transmit and receive wireless operation at same frequency using single antenna. A compact and simple structure antenna with triple. Investigation of a novel dual band microstripwaveguide. This antenna operates at both the gps l1 frequency of 1575 mhz and l2 frequency of 1227 mhz, whose. Design of miniaturized dualband microstrip antenna for wlan. 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. A dualport dualpolarized compact microstrip antenna for avoiding cross coupling between the two frequency bands is proposed and analyzed. Design of single feed dual band dual polarized microstrip.
A dualpolarized microstrip patch antenna fed by quasicrossshaped slot with the ports isolation higher than 35 db has been discussed in 18. The isolations of these antennas are about than 34 db, and bandwidth achieves 20 %. Dualband dualpolarized circular microstrip patch antenna. Pdf this paper presents the design of a dualband microstrip antenna with dual polarization characteristic for high altitude platforms haps. For multi band linearly polarization systems, a dual band antenna with arcshaped slot operating at 1. The dualpolarized patch antenna has been a popular research topic during recent years. Pdf design of dualband and dualpolarized microstrip. 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. The key idea of generating dual band circular polarisation cp is the integration of a square patch with corner truncation and a smaller concentric circular patch with double slits. Dualband circularly polarized aperturecoupled microstrip antenna 1619 fig. Wideband dual linear polarized microstrip patch antenna. Dual band circularly polarized modified rectangular patch.
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