This paper presents a new dual frequency design for microstrip patch antennas. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. Size of antenna is designed based on the simulation software of hfss from ansoft company, reducing antenna return loss by adjusting size and completing matching between patch. The proposed dual frequency antenna is excited by a single probe feed, and the feed position is on the rectangular. Compared with the conventional rectangular patch antenna, this antenna can achieve both a significant reduction of antenna size and a dual frequency operation with a single feed. In the following, a brief overview of these three types of dual frequency antennas is presented. The most common version of printed antenna is microstrip antenna, which consists of a metallic patch above a ground plane. Microstrip patches are low profile, lighter, and take up much less volume than a conventional feedhorn. Abstracta broadband dualfeed dualpolarized microstrip antenna with low cross polarization and high isolation is presented. Introduction microstrip patch antennas have problems of low bandwidths. Dualband operation of a microstrip patch antenna on a duroid.
The dual fed circular polarization microstrip antenna is successfully implemented and fabricated. Abstract the development of a compact, lightweight, dualfrequency antenna feed for future soil moisture and sea surface salinity sss missions is described. Microstrip antenna an overview sciencedirect topics. By adjusting the size of these structures, a dual band antenna can be obtained.
The total size of the designed antenna is very small which is only \ 15 \times 15\,\textmm2 \. Oct 17, 2018 a dual band microstrip rectangular patch antenna for wlan in vehicular communication applications is proposed. A dualband slotembedded microstrip antenna for dual. Compact, lightweight dualfrequency microstrip antenna. The stacked patch antenna array includes a ground plane 190 that is common to each planar patch array antenna. In this paper, a novel compact dualband microstrip patch antenna with dualradiation modes is investigated. A dualband slotembedded microstrip antenna for dualpolarization operation muhammad asad rahman, eisuke nishiyama, and ichihiko toyoda abstractin this study, a new slot embedded microstrip antenna for dualband dualpolarization operation is proposed. In the paper given an patch antenna with inset feed method is designed for dual band frequency of 2. The design is based on the microstrip stackedpatch array mspa to be used to feed a large lightweight deployable rotating mesh antenna for spaceborne l. In this paper, a novel compact dual band microstrip patch antenna with dual radiation modes is investigated.
Dualfrequency circularly polarized truncated square. Moreover, the microstrip patch antennas can provide dual and circular polarizations, dualfrequency operation, frequency agility, broad bandwidth, feed line flexibility, and beam scanning omnidirectional patterning. 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. International journal of computer applications 0975 8887 volume 92 no. By adjusting the size of these structures, a dualband antenna can be obtained. Input signal couples to the radiating patch trough the aperture that exists on the ground plane of microstrip feed line. Dual feed microstrip patch antenna for wlan applications. 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. Basically transmission line modelling approach has been used to model the antenna. Experimental results of the antenna resonating at frequencies of about 1. Compact single feed dual band microstrip patch antenna with.
A dualfrequency small microstrip antenna ieee conference. It is a multiple patch approach for getting dual frequency operation with a single feed point. The dualorthogonal linearly polarized mode is excited by two di. Most often, microstrip antennas are made by etching the patch from a printed circuit board with conductor on both sides. A dual frequency, compact single probefeed rectengular microstrip patch antenna with reduced size has been proposed in this paper. A new design of coplanar patches to get the dual band operation is proposed in this paper. Consnarrow bandwidth low efficiency low gain figure 1 microstrip antenna 1 1. The shape and size of patch determine the frequency of operation of the antenna and its performance. A novel dual frequency compact antenna, which uses an hshaped microstrip patch loaded with shorting pins, is proposed and studied. In this paper first, suspended rectangular and also circular patch antennas with electromagnetically coupled inverted microstrip feed. The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. A compact dual frequency dual band square microstrip patch antenna using square loop slots on the patch and a rectangular slot on finite ground plane have been designed and presented in this paper. A dualfrequency compact microstrip patch antenna s.
The proposed antenna is suggested to be used in a mobile phone handset that covers four frequency. Dept, college of engineering, mosul university, mosul iraq. In this paper, a new dual frequency, compact antenna, which uses an hshaped microstrip patch with a shorting pin, is described. Compact rectangular slot patch antenna for dual frequency. Compact dual band microstrip antenna using square loop. This paper presents the design and simulation of a compact rectangular slot patch antenna for dual frequency operation at 2. This research proposes a dualfrequency circularly polarized truncated square aperture patch antenna with slant stripline and lshaped slot for wlan applications. The bandwidth of microstrip antenna can be increased by using air as the substrate. The design features will also enable applications to airborne sensors operating on small aircrafts. The image below shows two ways to feed the microstrip patch, on the left is a microstrip feed and on the right is a coax feed. A triangular patch antenna for uhf band with microstrip.
Additionally, the simulated results indicates that the antenna has good. The proposed antenna structures are mainly constructed from the forkshaped monopole antenna. The feed position of a patch antenna excited in its fundamental mode is typically located. A feed system supplies the rf power, and a ground plane is at the bottom of the patch antenna, sustaining the substrate. Few points a microstrip patch antenna consists of a radiating. For the sake of convenience, a summary is included in figure 1. The antenna has been designed, modelled and simulated. Dual frequency operation in the proposed antenna is achieved by two rectangular patches on a single substrate and giving them individual feed to each patch. A triangular patch antenna for uhf band with microstrip feed line for rfid applications twinkle kundu1 and davinder parkash2 1m. Most of the other dualfrequency patch antennas found in the literature can be subdivided into 2 multi patch dual frequency antennas, and 3 reactive2yzoaded dualfrequency patch antennas. A suspended patch antenna excited by an electromagnetically coupled inverted microstrip feed at sband frequency has been demonstrated in 5.
In addition, the two operating frequency bands can produce the same linear polarization or dual polarizations. The aim of this research is to achieve smaller size, better bandwidth and good radiation capability. Dualfrequency circularly polarized truncated square aperture. This invention relates generally to a dual frequency antenna structure.
Compared with the conventional rectangular patch antenna, this antenna can achieve both a significant reduction of antenna size and a dualfrequency operation with a single feed. The measured results shows that the antenna has good simultaneous return loss and axial ratio performance at dual frequencies. A novel dualfrequency compact antenna, which uses an hshaped microstrip patch loaded with shorting pins, is proposed and studied. A dualfrequency microstrip patch antenna is proposed based on rectangular microstrip patch, with appropriating feed location selection of 50. What dielectric constant defines the half wavelength. 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. A dual polarized microstrip patch antenna has been proposed for kuband. A triangular patch antenna for uhf band with microstrip feed. Microstrip patch antennas world scientific publishing. The shape and size of patch determine the frequency of. Microstrip patch antenna assisted compact dual band planar crossover. This paper presents a new dualfrequency design for microstrip patch antennas. Ep2270924a1 compact single feed dualpolarized dual.
Designing for designing of a microstrip patch antenna, we have to select the resonant frequency and a dielectric medium for which antenna is to be designed. In this paper, a new dualfrequency, compact antenna, which uses an hshaped microstrip patch with a shorting pin, is described. Pdf the proposed antenna exhibits dual resonance at 2. The selected microstrip antenna is a dual fed circular polarized microstrip antenna. Antennas which do not protrude from a surface are very desirable for. Moreover, the microstrip patch antennas can provide dual and circular polarizations, dualfrequency operation, frequency agility, broad bandwidth, feedline flexibility, beam scanning omnidirectional patterning. Quadband duallayer microstrip antenna design for mobile handset. This paper presents a novel dualband, half eshaped microstrip patch antenna hemspa with dual sense polarization. The patch antenna is employed with two vertical slots that are. In a basic design according to generally accepted microstrippatchantenna engineering practice, one would ordinarily use a relatively thick dielectric substrate and multiple feed probes to obtain the desired combination of wideband and dualpolarization capabilities. Gada mahmood faisal 1, kaydar majeed quboa 1, dia mohamad ali 2.
Quadband duallayer microstrip antenna design for mobile. The proposed dualfrequency antenna is excited by a single probe feed, and the feed position is on the rectangular. A dual band microstrip patch antenna for rf energy. Design of compact dualband and triband microstrip patch. The top metallic flat region, which is called the patch antenna, sits on a dielectric substrate. Circular polarization in the case of a dualfeed circularly polarized6 microstrip antennas, an external. A dualfrequency patch antenna for sar is very complicated to conceive, and repre. Single layer dual band microstrip patch antenna using probe feed. The stacked patch antenna array 100 has a single planar patch antenna subarray 101, 150 disposed on opposite sides of a dielectric substrate. The proposed antenna consists of a rectangular ground plane, a ushaped feed probe, and an hshaped slot radiating patch. Adopted from a cpwfed rectangular patch antenna for wlanwimax applications. Compact, lightweight dualfrequency microstrip antenna feed. The designed antenna has a frequency bandwidth of 184 mhz with the upper cutoff frequency of 2.
It is simple to model and easy to match by controlling the inset position. In this paper, a novel singlefeed dualfrequency microstrip patch antenna is presented and discussed. This antenna can achieve both a significant reduction of antenna size and a dualfrequency operation with a single feed. Dec 03, 2016 this paper presents the design and simulation of a compact rectangular slot patch antenna for dual frequency operation at 2. The design is based on the microstrip stackedpatch array mspa to be used to feed a large lightweight deployable rotating mesh antenna for. More particularly, the preferred and exemplary embodiment of such a dual frequency antenna structure is a conformal microstrip antenna structure formed from a conductorclad dielectric substrate with conventional photoetching processes similar to those used in the manufacture of printed circuitry. A dualband microstrip rectangular patch antenna for wlan in vehicular communication applications is proposed. In the antenna design, the parameters were optimized and the wlanenabled dual frequency 2. The antenna is simulated, tested and optimized using ansoft hfss software. With proper selection of slot loading and inset feed. Kband crossaperture coupled circularly polarized dual. The dual fed circular polarized microstrip antenna is etched on a fr4 with dielectric substrate of 4. Circular polarization in the case of a dual feed circularly polarized6 microstrip antennas, an external.
In this paper, a quadband, duallayer microstrip antenna was proposed. The dielectric constant that controls the resonance of the antenna. One of the two modes is excited by a pair of lshaped probes with a 180 phase. The single layered antenna has been designed to resonate in dual frequency mode. If you feed it at the edge you see an open circuit, because you are a halfwave from another open. This paper presents air gap aperture coupled microstrip antenna for dualband operation over the frequency range of 2. Some of the existing techniques like dual frequency pifa. Single feed dual frequency patch antenna resonating at gps 1. In the antenna design, the parameters were optimized and the wlanenabled dualfrequency 2. The simulation of the designed antenna was done with the aid of computer simulation technology cst microwave studio version 12.
The purpose of this paper is to develop the microstrip patch designed for dual frequencies of 945 mhz and 1960 mhz. Single layer dual band microstrip patch antenna using. Other dualfrequency antennas with square slot or rectangular slot loading are reported by chen 1998 and gao and li 1999a. Leong department of electrical and computer engineering, national university of singapore, singapore abstract. Quadband dual layer microstrip antenna design for mobile handset. This antenna can achieve both a significant reduction of antenna size and a dual frequency operation with a single feed. This category can be extended to any kind of patch shape that offers two crosspolarized resonant modes. By definition, a printed antenna is one that is fabricated using standard photolithography technique. This research proposes a dual frequency circularly polarized truncated square aperture patch antenna with slant stripline and lshaped slot for wlan applications. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Citeseerx document details isaac councill, lee giles, pradeep teregowda.
The frequency of operation of the patch antenna of figure 1 is determined by the length l. This antenna differs from any other microstrip antenna with their feeding structure of the radiating patch element. A dual frequency, compact single probe feed rectengular microstrip patch antenna with reduced size has been proposed in this paper. The antenna consists of circular patch and 3 db hybrid coupler. During our phase 1 activities conducted in 2003, we completed the conceptual demonstration of the stacked patch design for dual frequency 1. Vhf wideband, dualpolarization microstrippatch antenna. The novel design is achieved by cutting rectangular slits at two sides of the patch. Dualband microstrip patch antenna ieee conference publication. Three multiband microstrip patch antennas mpas to operate at 3. A dual band microstrip patch antenna for rf energy harvesting. The aim of this chapter is to show various ways to overcome this problem by using various matching techniques for numerous patch antenna array schemes. So while designing this antenna air is selected as a substrate.
Additional benefits of patch antennas is that they are easily fabricated making them cost effective. The design graphs are then used to compute the dimensions of a rectangular patch and feed network for a dualfrequency antenna for use at 1. Design of a single feed dual frequency microstrip antenna for gps. Two different feed mechanismsaperture coupling and inset coplanar microstrip lineare used to excite the tm 10 and tm 01 modes, respectively, on a single square patch.
The design is based on the microstrip stacked patch array mspa to be used to feed a large lightweight deployable rotating mesh antenna for spaceborne lband 1 ghz passive and active sensing systems. The center frequency will be approximately given by. This thesis involves the design and analysis of dual band microstrip patch antenna which operates at lower and upper resonating frequency of 3. Microstrip line feed is one of the easier methods to fabricate as it is a just conducting strip connecting to the patch and therefore can be consider as extension of patch. Design simulation and fabrication of microstrip patch antenna.
Properties of a basic microstrip patch a microstrip or patch antenna is a lowprofile antenna that has a number of advantages. The antenna comprises a single layer structure with a square radiating patch. Analysis of dual frequency microstrip antenna using. Inset microstripline fed dual frequency microstrip patch antenna.
They are lighter in weight, low volume, low cost, low profile, smaller in dimension and ease of fabrication and conformity. Due to the rapid acceleration and evolution of the wireless communication and their equipment, integrating more services in the personal devices, personal digital assistance pda devices has to work in multiband frequencies. A compact, dualfrequency microstrip antenna is proposed by wong and chen 1997, who use the rectangular microstrip patch loaded with one shorting pin. Us3971032a dual frequency microstrip antenna structure.
Microstrip patch antenna assisted compact dual band planar. Dualband slot microstrip patch antennas with dualradiation. The antenna proposed is a rectangular microstrip patch antenna having inset feed, the substrate used is fr4 epoxy. Menon id department of electronics and communication engineering, amrita university, amritapuri 690525, india. More freedom for tuning the resonant frequencies, the ratio of two resonant frequencies, and the input impedance is available due. This paper presents air gap aperture coupled microstrip antenna for dual band operation over the frequency range of 2. The basics of patch antennas, updated orban microwave. Dual band microstrip patch antenna using dual feed. A dualpolarized stacked patch antenna array 100 that operates at two different frequencies 320, 330. A novel compact dual frequency microstrip antenna sciencedirect. Design a dualfrequency rectangular patch antenna microwaves.