Yongshuai zheng, shacojun fang dualband rectangular patch antenna with a pair of l shaped slots for wlan application ieee international symposium on microwave, antenna, propagation and emc. The proposed design achieves the operating range of 8001020 mhz fractional bandwidth 24% with a peak gain of 5. Mar 30, 2018 microstrip line feed has been used as the feeding network for the antenna array. Dgw with defected square patch is first proposed to excite a single. Microstrip patch antenna coupled to two parasitic elements at the radiation layer. In contrast, when the angle of arrival is 45 or 5 degrees, the antenna array has zero output power. Asymmetric circular shaped slotted patch antenna for 915 mhz. The lengths of the two lshaped probe feeds are identical, but the feeds are antisymmetric. The antenna patch is a square patch whose length of a side is 25 mm, which ensures the appropriate gain of the antenna while reducing the volume of the antenna. Dualband omnidirectional circularly polarized patch antenna with etched slots and shorting vias hongyin zhang, fushun zhang, can wang, and tian li abstractadualbandomnidirectional circularlypolarized cppatch antennawith conical radiation patterns is presented in this paper. From figure it is observed that the antenna shows dual frequency behavior.
Dualband rectangular patch antenna with a pair of lshaped slots for wlan application, ieee international symposium on microwave, antenna, propagation and emc. Jun 27, 2016 the antenna works in two frequency bands of 2. Dual frequency reconfigurable patch antenna for s band application. Commonly used forms of loading slots include rectangular slots, ushaped grooves and lshaped grooves. Bandwidth enhancement of microstrip patch antenna using. In the paper a dual band lshaped microstrip patch antenna is printed on a fr4 substrate for wlan systems, and achieves a frequency range from 5. The proposed designs consist of microstripfed two dipoles through simplified balun. Two pairs of inverted l shaped strips and perturbation structures are inserted in two radiation patches, respectively, to achieve circularly polarised radiation in dual bands. The patch antenna of planar structures on substrates is easy to fabricate even for the array scheme.
Spline based geometry for printed monopole antennas, matthias john and max ammann. By using complementary rhombus resonator crr, a smallsize and lowprofile microstrip patch antenna mpa with broad bandwidth has been proposed. Analysis of lshaped slot loaded circular disk patch antenna. Design of dualband dualsense circularly polarised square slot and strips loaded lshaped patch antenna. Vichien dualfrequency patch antenna with a rectangular notch, electronics letters, vol. Dualfrequency circularly polarized truncated square. Using a sequential phase feed, the proposed antenna array can obtain wide impedance and ar bandwidth. Some of the properties of lcp, such as multilayer threedimensional vertical integration capability, good electrical and mechanical properties, and nearhermetic nature, make this substrate a practical choice for.
A proposed microstrip patch antenna array is shown in figure 5. Wideband patch antenna array with low crosspolarization. Microstrip patch antennas, in their conventional form, are narrowband. Broadband dualfrequency operation of circular patch antennas. Multifrequency rectangular microstrip antenna with array of l. A stub loaded dual band microstrip patch antenna for wlan. Microstrip line feed has been used as the feeding network for the antenna array.
The antenna achieves a symmetrical radiation pattern around zenith. Linear microstrip antenna array with reduced patch size using lshaped probe for electrically. Broadband circular polarized antenna dual coupled feeds for 1. This work present a stub loaded dual band microstrip patch antenna for wireless local area network wlan. The antenna has been simulated using cst microwave studio cstmws. The second antenna is a microstrip patch antenna fed by coaxial line, and the size of the antenna is diminished by opening a stepped groove on the two edges of the patch and a folded slot inside the patch. Broadband circularly polarized slot antenna array with fan. Multifrequency rectangular microstrip antenna with array. Wong and hsu 7 applied a u shaped slot in an equilateral triangular. The authors propose a phased patchantenna array working in the xband i.
By embedding properly arranged lshaped slots in a circular patch, a novel broadband dualfrequency design is proposed and experimentally studied. A microstrip patch antenna array incorporating a plurality of spacedapart patch radiating elements electromagnetically coupled to a microstrip line conductively coupled to a source of signals. In order to reduce the radiation aperture and consequently broaden the circular polarization cp and the half power beamwidth hpbw of the antenna, a partially etched superstrate and a conducting cavity are employed in the design. Research article analysis of resonance response performance of cband antenna using parasitic element m. Design of miniaturized dualband microstrip antenna for wlan. Reconfigurable microstrip doubledipole antennas for. Analysis of triple band rectangular patch antenna loaded. In the antenna design, the parameters were optimized and the wlanenabled dualfrequency 2. Oct 12, 20 hfss design of rectangular patch antenna using microstrip line feedingedge feeding duration.
Us8854265b1 lshaped feed for a matching network for a. Design of microstrip patch antenna array using dgs for ism. By controlling the lengths of the dipoles by connecting or disconnecting slots, we are able to change the antenna operating. Often, the asymmetry of the patch and feed structure leads to additional cross polarization. Low profile patternswitchable multibeam antenna consisting of four lshaped microstrip lines. Design of dualband dualsense circularly polarised square slot and strips loaded lshaped. For instance, the antenna array is most receptive when the angle of arrival is 90 degrees. 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. Small patch slot antenna with 53% input impedance bandwidth, xiulong bao and max ammann. Dual frequency circularlypolarized patch antenna with compact size and small frequency ratio, xiulong bao and max ammann. A circularpolarized patch antenna with compact size operating at 2. In the present paper a dual frequency resonance antenna is achieved by introducing l shaped slot in circular disk patch. The length and width of the lshaped microstrip line aredescribedbyl 1,l 2,l 3,w 1 andw.
A rectangular microstrip antenna containing an array of narrow l slots and inverted l slots is described for multifrequency operation. Figure 7 radiation pattern of the rectangular patch antenna using inset lshaped feed with dual l slots on the ground plane the parameters given in table 2 are fixed, variation of return loss as a function of frequency for different value of the length notch of the inset lshaped feed w fl is shown in figure 8. The proposed antenna array consists on a single substrate. Sharma professor, department of electronics and comm. Broadband dualfrequency operation of circular patch. This research proposes a dualfrequency circularly polarized truncated square aperture patch antenna with slant stripline and lshaped slot for wlan applications. Gsmumts dual polarization base station antenna design. Design of an lshape slanted dualband microstrip patch antenna.
Both the spacedapart patch radiating elements and the microstrip line are located on the same side of an adjacent conductive substrate. A rectangular microstrip antenna containing an array of narrow lslots and inverted lslots is described for multifrequency operation. For that purpose a single patch antenna has insufficient gain and an array of patch antennas is required. A matching network is formed by a clearance member of the laminate structure around a pin and a stub of the lshaped feed structure on the bottom surface in which the clearance member around the pin effectively decreases shunt inductance and reduces a series. W zhang, a pal, a mehta, d mirshekarsyahkal, h nakano. In patch antenna, it is the fringing fields that are responsible for the radiation. Hfss design of rectangular patch antenna using microstrip line feedingedge feeding duration. As antenna 1 is a rectangular microstrip patch antenna it can be represented as an array of two radiating apertures. A 5g wideband patch antenna with antisymmetric lshaped. In 17, a dualband dualpolarized patch antenna array has been proposed. Dualfrequency circularlypolarized patch antenna with compact size and small frequency ratio, xiulong bao and max ammann.
The antenna consist of l shaped and e shaped radiating elements to generate two resonant modes for dualband operation. Above rectangular patch antenna is a designed using following equations, width of microstrip patch antenna is calculated by following equation, w 36. Lu 6 analyzed a circular patch antenna and its arrays with a pair of lshaped slots for broadband dualfrequency operation. Research article analysis of resonance response performance. The simulated, theoretical and reported experimental results of the microstrip line fed rectangular patch antenna with parasitic element and srr are in close agreement. A dualpolarized patch antenna element fed by a pair of antisymmetric lshaped probes is proposed. The antenna utilizes l shaped slot in the radiator in order to achieve circularly polarized radiation pattern. In this paper, a number of reconfigurable antennas are designed to support multiband and wideband wireless applications in different frequency bands in the range between 1 ghz and 6 ghz. Since the overall size of the dualband element is smaller than half the freespace wavelength at 30 ghz a rectangular array can be constructed without generating grating lobes in the visible range. The development of dual frequency 14 and 35 ghz, dual polarization microstrip antenna arrays is presented for the first time on liquid crystal polymer lcp multilayer technology. Analysis of triple band rectangular patch antenna loaded with pairs of l shaped slots m.
The slots are cut on the patch at two opposite corners. A microstrip patch antenna 4 for dual band wlan application is proposed. Surana digital communication, poornima college of engineering, jaipur, india. Stepped impedance resonator based ushaped twoelement. Parametric studies were conducted to illustrate the working principle of the proposed antenna. Square patch antenna how is square patch antenna abbreviated. Design and analysis of microstrip patch antenna arrays.
Dualfrequency circularly polarized truncated square aperture patch antenna with slant. Analysis of triple band rectangular patch antenna loaded with. In this contribution a dualband, dualpolarized microstrip antenna element for array applications is presented. The two main features are embedded in the antenna element to expand the bandwidth. Design of microstrip patch antenna array using dgs for. In 17, a dual band dual polarized patch antenna array has been proposed. However, these antennas are very complex in structure.
Design of dual band antenna with defects on patch and. Compared with the mpa without the crr, the bandwidth of the proposed antenna. The antenna design is made on a fr4 substrate having dielectric constant of 4. A microstrip patch antenna including a ground plane base, an lshaped feed structure and a laminate structure is disclosed herein. Broadband cp patch antenna with lshaped ground plane for 2. To validate the proposed working principle, the proposed patch antenna is designed and fabricated on the substrate rogers 5880 with relative permittivity. Linear microstrip antenna array with reduced patch size using lshaped probe for electrically thick substrates 11. Bandwidth enhancement of patch antenna with anisotropic. Dualband omnidirectional circularly polarized patch. A microstrip patch antenna array incorporating the present invention operating in the 1. Tentzeris georgia electronic design center school of electrical and computer engineering georgia institute of technology, atlanta, ga 30308, u.
Phased array consisting of square loop antennas for high gain wide angle scanning with low grating lobes. This paper describes a novel dual band patch antenna on organic magnetic substrate for wireless local area networks wlan wireless communication at 2. Dualfrequency characteristics of minkowskisquare ring antennas. Broadband dualfrequency operation of circular patch antennas and arrays with a pair of lshaped slots abstract. Small patchslot antenna with 53% input impedance bandwidth, xiulong bao and max ammann. Another type of wideband single patch antenna uses a modi. Dual frequency reconfigurable patch antenna for s band. The antenna in 17 operates in two separate frequency bands, including 820960mhz and 17102170mhz, which cover the operating frequencies of most mobile communication systems including cdma, gsm, pcs, and umts has been proposed. The prototype of the antenna is fabricated and is fed by a 50. The designed twin lshaped probe feeding structure is able to introduce feed capacitance to the antenna for broadband operation. An inverted l shaped element is used to increase the.
Broadband circular polarized antenna with lshaped patch for 2. A compact singlefeed circularly polarized microstrip antenna is proposed to achieve symmetric radiation pattern over a wide range of observation angles. The final part of this work has been concentrated on studying an array antenna with two and four elements. Dual frequency band communication antenna antenna plus, llc. An lshaped slot circularly polarized patch antenna for.
Research article analysis of resonance response performance of. It is a compact design of radius 30 mm on duroid substrate with dielectric constant of 2. Figure 5 shows that the phased array actually processes the signals better in some directions than others. Analysis of lshaped slot loaded circular disk patch. Unlike lshaped wire feed structures, lplate shape provides better coupling. Chiahsun yeh, boshau chen, chihchiang hen, and chowyendesmond sim, lshaped probe feed patch antenna with circular polarization radiation for uhf rfid applications, 2015 international microwave workshop series on rf and wireless technologies for biomedical and healthcare applications imws bio 2015, pp. E shaped microstrip patch, slot antenna, xband, ku band, dual band antenna. Introduction in 1 a compact dualfrequency hybrid resonator antenna suitable for wireless communication applications at 1. Dualfrequency patch antennas may provide an alternative to largebandwidth planar antennas, in applications in which large bandwidth is really needed for operating at two separate transmit. Abstractin this letter, a twoelement wideband patch antenna array with. From figure it is observed that the antenna shows dual frequency behavior with frequency ratio 2.
A design of an aperturecoupled microstrip antenna array was discussed in 7. Reconfigurable microstrip doubledipole antennas for personal. Broadband dualfrequency operation of circular patch antennas and. In this paper, a dual frequency resonance antenna is analysed by introducing l shaped slot in a semi circular patch, different parametric studies have allows and.
Abstract this paper presents a slotted multiband antenna design. Dualfrequency circularly polarized truncated square aperture. Linear microstrip antenna array with reduced patch size using lshaped probe for electrically thick substrates. Dimensions of the patch are finite along the length and width. Although the patch antenna needs high gain rtds due to its large load, the antenna that has several tens of ohms can satisfy the matching condition. The development of dualfrequency 14 and 35 ghz, dualpolarization microstrip antenna arrays is presented for the first time on liquid crystal polymer lcp multilayer technology. Introduction in 1 a compact dual frequency hybrid resonator antenna suitable for wireless communication applications at 1. The patch was designed for tm 010 mode of excitation at 2. The microstrip patch radiating elements are arranged in a linear. An additional resonance is introduced by the crr to broaden the bandwidth. Base station antenna array is designed to cover frequency range from 1710 mhz to 2170 mhz. Pier c online a novel dualband patch antenna for wlan. Dgw loaded with a defected square patch is etched on the substrate rogers 4003 with relative permittivity.
Dualband omnidirectional circularly polarized patch antenna. Mandeep 2 centre for space science angkasa, universiti kebangsaan malaysia ukm, bangi, malaysia. In addition, lowfrequency ratio of the two working frequencies can be obtained by using the loading method 25. Design of miniaturized dualband microstrip antenna for. A modified eshaped microstrip patch antenna for dual band in x. In this regard, lu 12 investigated and analyzed a circulartype patch antenna with a pair of lshaped slots for broadband dualfrequency operation. The antenna assembly 10 comprises a first antenna 16 for cellular telephone communication and a second antenna 18 for pcs telephone communication. Broadband dualfrequency operation of circular patch antennas and arrays with a pair of lshaped slots. The antenna consists of a patch with inclined slots, a ground.
903 592 565 1120 811 889 268 1163 986 1501 842 761 1139 586 1385 901 437 31 773 385 161 976 952 1353 13 572 76 1003 681