Singlefeed dualband duallinearlypolarized proximity. Design, implementation and experimental comparison between. An alternate form of patch antenna has independent feeds for each axis. One radiating element contains two parallel dual fed vivaldi antennas for one polarization with 65 mm separation. Show full abstract miniaturization square patch and 3db hybrid coupler. The dual fed circular polarized microstrip antenna is etched on a fr4 with dielectric substrate of. Investigation of a novel dual band microstripwaveguide hybrid antenna element mohammad t. Design of dual circularly polarized sequentiallyfed patch. Singlelayer wideband circularly polarized patch antennas for. A multilayer organic package with 64 dual polarized antennas for 28ghz 5g communication xiaoxiong gu1, duixian liu1.
A phase shift caused by path inequality between two possible symmetrical feeding p. A compact and wideband differentially fed dualpolarized antenna with high commonmode suppression is investigated in this paper. Probefed or slot coupling fed structure are commonly used in orthogonalmode dualband patch antennas to implement good matching over dualband 36. A multilayer organic package with 64 dualpolarized. A microstrip antenna is a resonant radiator, whose radiation field is produced by the electromagnetic field of mutualmotivation between the upper radiation patch edges of microstrip antenna and the grounding plate, and constantly radiates out electromagnetic waves through the gap between them 16,17. A seriesfed microstrip patch array with interconnecting. Physics antennas electronics design and construction engineering design methods. This paper proposes a new design approach for dual band coplanar waveguide cpwfed pentagonal ring fractal patch antenna prfpa which generates two wide resonant frequency bands for 10db s 11 bandwidth to cover 3. In this latter case, the lower patch can be fed by a conventional arrangement, and the upper patch by proximity coupling with the lower patch 7. Design of a dual patch triangular microstrip antenna. Reconfigurable patch antennas with fourpolarization states agility using dual feed ports. A novel feeding mechanism for a rectangular patch antenna is introduced. This antenna is fed by the microstrip line and the plus shape slot is used in the hexagonal patch.
In this paper, a dualpolarized patch antenna fed by a hybrid ring structure is proposed. 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. 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. A lossless foam material is sandwiched between the two patches to provide a mechanically stable and uniform height. By following these basic guidelines, this compact, lowcost, lightweight patch antenna can be matched to applications operating at both 1. A new design for singlefeed dual layer dual band patch antenna with linear polarization is presented in this letter. The picture below shows the dimensions of the dual band feed.
A dual polarized aperturecoupled patch structure with air cavity is implemented for the antenna array. Department of electrical engineering, indian institute of technology bombay. The selected microstrip antenna is a dualfed circular polarized microstrip antenna. This improvement results from tuning stub which is used to tune. A dualfeed rectangular patch antenna for bandwidth enhancement. Graphenebased microstripfed hexagonal shape dual band. For the feed network, two transmission lines are used to connect the two edge feeds to an open circuit stub to match the antenna at the two frequencies. The main disadvantage of these antennas is their relatively large size compared to other types of antennas.
The patch is of rectangular shape and fed by a gap between the patch edge and a microstrip open end. By adjusting the size of these structures, a dualband antenna can be obtained. Two different feeding mechanisms are designed to excite two orthogonal modes on a single radiating patch. Braaten department of electrical and computer engineering north dakota state university fargo, nd, usa 58102. By optimizing their dimensions and positions, the input port isolation of the dual polarized patch antenna can be enhanced dramatically over a wide range of frequencies. Design of compact dualband and triband microstrip patch. This category can be extended to any kind of patch shape that offers two crosspolarized resonant modes. Cpw fed rectangular ringsbased patch antenna with dgs for wlanunii applications volume 11 special issue geetanjali singla, rajesh khanna, davinder parkash. Compact rectangular slot patch antenna for dual frequency. The paper presents a novel dual polarized dual fed vivaldi antenna structure for 1. Singlefeed duallayer dualband eshaped and uslot patch.
Reduced size, dual polarized microstrip patch antenna for wireless communications keyoor gosalia, student member, ieee, and gianluca lazzi, senior member, ieee abstract a novel, compact, probefed microstrip patch antenna for operation in dual polarization mode is proposed. In this case, the frequency ratio is approximately equal to the ratio between the two orthogonal sides of the patch. The basics of patch antennas, updated orban microwave. In this article electrically small, dual band, triple frequency x shaped patch antenna on a substrate of ceramicptfe composites is presented. As the microstrip patch antenna consist of a ground a patch and a substrate. Dual polarized dual fed vivaldi antenna for cellular base. Dual band x shape microstrip patch antenna for satellite. The antenna consists of circular patch and 3 db hybrid coupler. Sridevi3 abstractin this paper, the design of crown circular shaped fractal microstrip patch antenna. In this antenna, one corner of the patch or sometimes one edge is grounded with a ground pin. Isolation improvements for patch antenna are reported in refs. Firstly, a patch antenna fed by an siw coupler is developed to achieve a measured 3 db axialratio ar bandwidth of 21%. The design graphs are then used to compute the dimensions of a rectangular patch and feed network for a dual frequency antenna for use at 1. As we said before the antennas with double fed are rejected, due to the fact they have an extra section of line.
At least a portion of the second patch antenna 110 serves as a ground plane for the first patch antenna 105. Circular polarization is obtained when two orthogonal. On the use of slots in the design of patch antennas. In this paper, a novel compact dual band microstrip patch antenna with dual radiation modes is investigated.
And a novel hybrid ring is applied as a feeding network. Aug 28, 2015 in this paper, a novel compact dual band and dual polarized csrr fed siw cavitybacked fractal patch antenna, which aims to work simultaneously for wireless energy harvesting and communication, is proposed and analyzed. The selected microstrip antenna is a dual fed circular polarized microstrip antenna. Both vivaldi antennas for one polarization are excited. P2 12scholar, srm university, chennai 603203, india. Utilizing the shorting pins or shorting walls on the unequal arms of a ushaped patch, uslot patch, lstrip patch or lprobe feed patch, hshaped stacked patch antennas, wideband and dual band impedance bandwidth have been.
The two or more patch antennas include a first patch antenna 105 and a second patch antenna 110. Juhua liu and quan xue, broadband long rectangular patch antenna with high gain and vertical polarization. In this paper, a low profile microstrip patch antenna with defected ground structure is proposed for wide impedance and axial ratio bandwidth. It is shown that the separation height between the two patches plays a significant role in improving the impedance bandwidth of the antenna. Wideband dual linear polarized microstrip patch antenna. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. A new dual band patch antenna, which is arranged perpendicular to a circular ground plane for wireless local area network wlan is presented. Liu and chen 19 proposed a compact patch antenna cpw fed for dual band operation and obtained that lower band and upper band of antenna can be utilized for shortrange wireless application.
I have seen antenna model for dual polarization having dual feed. Recently, a dual polarized patch antenna fed by a wide balun can realize wide working band, low crosspolarization, and high isolation performances. The proposed antenna is capable of receiving both types of circular polarization signal. Microstrip series fed patch array antennas are kno wn for almost 30 years 1 and ha ve also been examined in the conte xt of traveling w ave and resonator antennas 2. Geometry of dual port microstrip patch antenna with one microstrip fed port and other port is slot coupled the slotaperture coupled microstrip patch antenna provides improved input impedance bandwidth as compared to single layer microstrip fed patch antennas 1011. Design, implementation and experimental comparison. This paper presents a novel design of a harmonic suppression singlefed dual circularly polarized microstrip patch antenna for a rectenna system in the future wireless power transmission application. Design of striplinefed dual polarization aperturecoupled. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. Pdf design and analysis of single and dual fed patch antenna array.
Waterhouse, senior member, ieee abstractin this paper, a technique to reduce the spurious feed radiation from edgefed patch antennas by using a dual thickness substrate is presented. This paper presents a hybrid ring feeding dual polarized patch antenna with high isolation in a wide working band. To the best of the authors knowledge, there are no reported dual port antennas with single patch of isolation more than 64 db. A variant of the patch antenna commonly used in mobile phones is the shorted patch antenna, or planar invertedf antenna pifa. This paper presents a novel design of a harmonic suppression single fed dual circularly polarized microstrip patch antenna for a rectenna system in the future wireless power transmission application. A differentially fed circular patch antenna working in tm 11 and tm 12 modes is proposed for dual band highgain and stable radiation patterns. 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. The antenna consists of miniaturization square patch and 3db hybrid coupler. A square patch with crossedslot consisting of four slant funnelshaped slots is used as the radiator, generating slant 45 linear polarizations. In order to explain the operating principle of this technique, the performance of a dual polarized lprobe fed patch antenna will firstly be described.
Dual feed microstrip patch antenna for wlan applications. Basic geometry and basic characteristics of patch antennas 3. In this paper, a dual polarized patch antenna fed by a hybrid ring structure is proposed. The proposed x shape patch antenna with five rectangular slots produces dual band operation for ku band applications and one for k band applications. Dualpolarized antenna is gaining ever increasing interest recently, owing to its abilities to mitigate the multipath fading problem and increase channel capacity. Rhcp and lhcp simultaneously and at the same time it also able to filter the unwanted harmonic signals. First, the unslotted graphenebased hexagonal patch antenna is designed and simulated. A set of shorting pins are loaded in circular contours underneath the circular patch to substantially increase the resonant frequency of tm 11 mode, and the radiation gain in lower band can be hence effectively enhanced due to the enlarged. Tm stands for a magnetic field distribution between patch and ground that is transverse to the zaxis of the antenna shown in figure 1.
Introduction this article introduces the basic concepts of patch antennas. The radiating element is designed for a base station antenna array with high antenna performance criteria. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. In this paper, a novel compact dualband microstrip patch antenna with dualradiation modes is investigated. A seriesfed microstrip patch array with interconnecting crlh transmission lines for wlan applications bilal ijaz, sayan roy, muhammad mubeen masud, adnan iftikhar, sanjay nariyal, irfan ullah, koby asirvatham, brian booth and benjamin d. A microstrip fed antenna offers a better isolations between the feed. Reduced size, dualpolarized microstrip patch antenna for. Another variant of patch antenna with the partially etched ground plane, also known as printed monopole antenna, is a very versatile antenna for dualband operations. This variant has better matching than the standard patch. Dualband highgain differentially fed circular patch. Investigation of a novel dual band microstripwaveguide. In this communication, dual fed wideband circularly polarized cp patch antennas based on the singlelayer printed circuit board pcb process and the substrate integrated waveguide siw technology are proposed. Moreover, it could also be employed as dualpolarized multipleinputmultipleoutput mimo antennas, instead of two spatially separated antennas with single polarization.
The proposed antenna adopts shape strips coupled feeding structure to achieve wide working band. A multilayer organic package with 64 dual polarized antennas for 28ghz 5g communication xiaoxiong gu1, duixian liu1, christian baks1, ola tageman2, bodhisatwa sadhu1, joakim hallin2, leonard rexberg3, and alberto valdesgarcia1 1ibm research, new york, usa, 2ericsson, lindholmen, sweden, 3ericsson, kista, sweden. It is shown that the combination of fractal geometries and the csrr feed is effective in the design of compact siw antennas. This paper proposes a new design approach for dual band coplanar waveguide cpw fed pentagonal ring fractal patch antenna prfpa which generates two wide resonant frequency bands for 10db s 11 bandwidth to cover 3. Multiple patch antennas on the same substrate see image called microstrip antennas, can be used to make high gain array antennas, and phased arrays in which the beam can be electronically steered.
Three multiband microstrip patch antennas mpas to operate at 3. Design of miniaturized dualband microstrip antenna for wlan. Patch antennas come in various shapes and sizes and consist of a patch of metal directly above a ground plane. Dual band slot loaded patch antenna, ieee proc h microw antenna propogation uk, 142 1995225. Dualport, aperture coupled and tapered fed patch antenna. Single stacked microstrip patch antenna fed by microstrip line was designed to have approximately 3 ghz bandwidth in xband with another ground plane to form a striplinefed. The dual fed circular polarized microstrip antenna is etched on a fr4 with dielectric substrate of 4. A capacitive coupling feed structure is used to match the input impedance of a patch antenna and make the antenna compact enough. By adjusting the size of these structures, a dual band antenna can be obtained. Compact design of dualband fractal ring antenna for wimax. The antenna consists of square patch and 3 db hybrid coupler. The proposed antenna structures are mainly constructed from the forkshaped monopole antenna. We use a simple rectangular, half wave long, probefed patch operating in its fundamental mode as an example. In this paper, we present the design and fabrication of two dual circularly polarized cp patch antennas that can be profitably used as.
Dual polarization stacked microstrip patch antenna array. The above approach characterizes a first category of dual fre quency patch antennas, which will be identified as 1 orthogonal mode dual frequency patch antennas. Design, modeling and analysis of dualfeed defected ground. Pdf design and analysis of single and dual fed patch. The first approach begins with a new patch antenna that provides dual band dual polarized operation by means of an opencircuit stub, added at the open end of the feed line. Dual feed antennas can provide nearly ideal characteristics but are inherently more expensive to build. A compact coplanar waveguide cpwfed folded sa with overall dimensions of. The feeds are combined in a network that fully isolates the two feeds. In this paper analysis of single feed and dual feed microstrip patch antenna arrays is done, and results are compared. A novel dualbroadband circularly polarized patch antenna for. One major difference between the cband and the lband an.
The goal of this work is to design and implement a dual linear polarization stacked microstrip patch phased array antenna. Design and analysis of single and dual fed patch antenna array. A novel millimeterwave dualfed phased array for beam steering. A new circular polarization dual feed microstrip square patch. Dualband slot microstrip patch antennas with dualradiation.
The proposed antenna consists of a rectangular ground plane, a ushaped feed probe, and an hshaped slot radiating patch. However, the antennas have narrow impedance bandwidth. The dualpolarized patch antennas normally have a multilayer structure which may include coupling slots and lshaped probe or meandering probe, or a feeding network 9, 10 proposing a dualpolarized microstrip patch antenna fed through hshaped coupling slots, which can achieve high isolation and low crosspolarization. A multilayer organic package with 64 dualpolarized antennas. Design of circular fractal antenna for dual band and uwb applications s. The stacked patch antenna 100 comprises a differential feed patch antenna. Design of circular fractal antenna for dual band and uwb.
Kawser abstract microstrip antennas are low in profile and light in weight and they are now developed for many applications. Wideband duallayer patch antenna fed by a modified l. High isolation dualpolarized patch antenna with hybrid ring. Design and analysis of single and dual fed patch antenna array free download abstract in many applications it is necessary to design antennas with very high gain to meet the demands of long distance communication. Design of miniaturized quadband dualarm spiral patch. Reconfigurable patch antennas with fourpolarization states. Can anyone explain pros and cons of dual feed vs single feed patch. This paper presents the design and simulation of a compact rectangular slot patch antenna for dual frequency operation at 2. In this paper, a new compact dual polarized microstrip patch antenna is proposed. The proposed antenna consists of a circular radiating patch printed on the upper horizontal substrate, two pairs of shaped strips printed on two vertical substrates, and a hybrid ring feeding network printed on the lower two horizontal substrates. To increase the gain and directivity the solution is antenna array. The main difficulty of the microstrip antenna is its narrow bandwidth. A set of shorting pins are loaded in circular contours underneath the circular patch to substantially increase the resonant frequency of tm 11 mode, and the radiation gain in lower band can be hence effectively enhanced due to the enlarged patch size at.
Antenna pattern at 9, left graph, and 10 ghz, right graph, for the intermediate. Dual hequency patch antennas may provide an alternative to largebandwidth planar antennas, in applications in which large. In this paper, two novel singlefeed dual band dual polarized microstrip antennas, fed by proximity coupling, are presented. The technique can enhance the input port isolation of any type of dual polarized probe fed patch antenna dramatically over a wide range of frequencies. High isolation dualpolarized patch antenna with hybrid. A compact and wideband differentially fed dual polarized antenna with high commonmode suppression is investigated in this paper. The best feeding point from the geometry of microstrip patch antenna we can understand that to couple the maximum energy to it the feed is provided beneath the ground directly see fig. Us7994985b2 isolation enhancement technique for dual. In this paper, a new compact dualpolarized microstrip patch antenna is proposed. Consequently, this technique is very useful in the design of various types of dual polarized patch antennas with feeding probes. The patch substrates of these antennas are non inverted. Seriesfed aperturecoupled microstrip antennas and arrays.
In 12, a slotted triangular ma was presented to cover dual bands used for rfid systems and operated in the frequency ranges of 0. A novel millimeterwave dualfed phased array for beam steering article in ieee transactions on microwave theory and techniques 618. The simulation of the designed antenna was done with the aid of computer simulation technology cst microwave studio version 12. A csrrfed siw cavitybacked fractal patch antenna for. A differentially fed circular patch antenna working in tm 11 and tm 12 modes is proposed for dualband highgain and stable radiation patterns. Pdf harmonics suppression singlefed dualcircularly. Eshail2 oscar 100 dual band patch antenna uhfsatcom. Cpw fed rectangular ringsbased patch antenna with dgs for. The patch is of rectangular shape and fed by a gap between the. Microstrip patch antennas represent one family of compact antennas that offer a conformal nature and the capability of ready integration with communication systems printed circuitry. Compact and wideband differentially fed dualpolarized. To achieve dual band operation, a firstiterative fractalradiating patch is printed on a single substrate layer and a cpw structure.
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