Designor 1 and jayanti venkataraman 2 1 department of electrical engineering rochester institute of technology, rochester, ny 14623, usa. A reconfigurable microstrip patch antenna with frequency. Frequencyreconfigurable microstrip patch antennas with. It provides links on various topics on microstrip patch antenna. When the switch is on the electrical size of antenna becomes small and it resonates at higher umts 2100 mhz band with circular. Introduction 1patch antenna is a type of radio antenna with a low profile, which can mounted on a flat surface. Microstrip antenna or patch antenna basics in antenna and wave propagation by. It consists of a square patch of side a printed on rt duroid substrate of.
The structure of the frequency reconfigurable antenna consists of a rectangularring shaped microstrip antenna which is loaded with a rectangular patch in the middle of the rectangularring antenna and fed by a microstrip line. This paper presents a technique of frequency reconfigurable microstrip patch antenna for sband applications. The most common version of printed antenna is microstrip antenna, which consists of a metallic patch above a ground plane. A simple design of circularlypolarized cp microstrip antennas with frequency agility is described. Frequency reconfigurable, microstrip patch antenna, pin diode, return loss, gain, ansys hfss. Frequency reconfigurable uslot microstrip patch antenna. Frequency reconfigurable tshaped microstrip patch antenna. Frequency reconfigurable microstrip patch antenna ieee xplore. Microstrip antenna using multiple parasitic patches. It is a microstrip line inset fed patch antenna with square concentric rings as defected ground structure dgs and fr4 as the substrate.
The most commonly employed microstrip antenna is a rectangular patch which looks like a truncated microstrip transmission line. Reconfigurable microstrip patch antennas microstrip. This antenna mainly comprises of a corner truncated square patch with a rectangular ring slot, eight pin diodes and six conductive pads. One of the merits of frequency reconfigurable is that the antenna can provide rejection of interfering signals in the bands that are not in use so that the filter requirements of the front end circuits can be gently reduced 20. In the proposed design a rectangular patch antenna with slots at the centre frequency 10 ghz that can be reconfigured in the frequency range of 1010. Frequency reconfigurable microstrip patch antenna with circular slot. Tripathi1, and rahul rishi2 abstracta two port, integrated recon. Reconfigurable microstrip fractal antenna design in ansys hfss using pin diode new design of microstrip patch antenna using pin diode reconfigurable antenna. The proposed antenna has a simple structure, consisting of a square radiating patch and parasitic conductor of. The shape and size of patch determine the frequency of. Design of frequency reconfigurable micro strip patch. A frequency tuning with polarization microstrip patch antenna design with varactor diode is presented. In this paper, frequency reconfigurable slotpatch antenna with reflector at the back of an antenna is presented.
This paper gives a brief account on the methodology of designing an antenna changing its frequency using rf mems switches. The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. Design and analysis of frequency reconfigurable microstrip. A new design multiband microstrip patch antenna is introduced. This research presents innovative design of a compact reconfigurable microstrip patch antenna system using different rectangular rings. The platform is created by structuring the silicon membrane which is formed. In this paper, a compact frequency reconfigurable circular patch antenna with an arcshaped slot loaded in the ground layer is proposed for multiband wireless communication applications. The reconfigurable antenna comprises of a microstrip patch antenna connected to two grounded stubs via commercial graphene nanoplatelets. A novel frequency reconfigurable microstrip patch antenna with circular slot is presented in this paper. An applied bias voltage varies the resistance of graphene. A frequency reconfigurable microstrip patch antenna is presented. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane.
Frequency reconfigurable microstrip circular patch antenna for wireless devices ghanshyam singh, mithilesh kumar abstract in this paper, a frequency reconfigurable circular antenna design and development is proposed for wireless devices. Advantages and disadvantages of microstrip patch antenna. Design of reconfigurable microstrip patch antenna for wlan. Switching between different frequency band is achieved using six rfmems switches. Reconfigurable microstrip patch antenna in frequency and. A frequency reconfigurable printed microstripfed patch antenna is proposed here. Frequency reconfigurable circular patch antenna with an. The simple design consists of two slots and two feeds. By definition, a printed antenna is one that is fabricated using standard photolithography technique. Reconfigurable microstrip fractal antenna design with line. When the equivalent capacitance values of the varactors are increased. The frequency reconfigurability is achieved by varying the.
The frequency of operation of the patch antenna of figure 1 is determined by the length l. A reconfigurable microstrip antenna with switchable frequency is proposed. Frequency reconfigurable patch antennas have attracted significant attention due to their ability to cover multiple frequency bands 1723. Figures 5, 6, 7 shows the return loss for offoffon state, ononoff state, and offoffoff. The microstrip line consists of pattern on one side of the dielectric substrate and ground plane on the other side of it. A novel single feed frequency and polarization reconfigurable. The proposed antenna consists of two parts, a patch with two orthogonal slots on the upper substrate and a 3db hybrid coupler fed structure which printed on the lower substrate.
It mentions microstrip antenna advantages or benefits and microstrip antenna disadvantages or drawbacks. Reconfigurable microstrip antennas are gaining much attention due to their numerous. The proposed antenna designed on fr4 substrate with dielectric constant 4. A reconfigurable microstrip patch antenna for various. The frequency reconfiguration is achieved by using a pair of pin diodes in the antenna feed line to switch the antenna either in wideband mode or in concurrent triband mode. In the predictable design, there is a two diode ar. Design and analysis of frequency reconfigurable microstrip patch antenna sanket kalamkar 1, vp bhope 2 1 department of electronics and telecommunication engineering, gh. Frequency reconfigurable microstrip patch antenna request pdf. Shastry a free powerpoint ppt presentation displayed as a flash slide show on id. This paper presents a design of frequency reconfigurable microstrip antenna which operates in sub6ghz band for 5g applications. The proposed antenna is using the dgs technique which uses three pin diodes with three rectangular slots. Microstrip antennas are often used where thickness and conformability to the host surface are key requirements. Reconfigurable microstrip patch antenna using mems.
Frequency reconfigurable microstrip patch antenna final project presentation presented by. Design and analysis of frequencyreconfigurable microstrip. A novel frequency reconfigurable microstrip patch antenna using. Design of frequency reconfigurable microstrip patch. Frequencyreconfigurable microstrip patchslot antenna. Fabrication process of the proposed antenna is comprised of bulk and surface micromachining.
A voltagecontrolled frequency reconfigurable antenna is presented. It is found that the incorporation of a uslot in the patch can provide a flat input resistance and a linear input reactance across a wider bandwidth than the conventional patch antenna. Reconfigurable microstrip patch antenna a schematic view of the proposed antenna is plotted in figure 1. Reconfigurable microstrip patch antenna for wlan software. Three switches are used to produce six reconfigurable frequencies. Modeling of pin diode in hfss and frequency reconfigurable antenna.
A simple frequency reconfigurable microstrip patch antenna. When air is used as the dielectric substrate, the length of the rectangular microstrip antenna is approximately onehalf of a freespace wavelength. In this paper, a novel model of a frequency reconfigurable microstrip patch antenna based on mems microelectromechanical system technology is introduced. This letter presents frequencyreconfigurable microstrip patch antenna with three. Design and simulation of a novel micromachined frequency. The reconfiguration is carried out by switching the diodes onoff. Microstrip patch antenna, reconfigurable frequency, pin diode. A novel microstrip patch antenna with both frequency and circular polarization diversities is presented.
The proposed frequency reconfigurable antenna capable for changing frequency operation by using rf pin diodes which is situated at different position on ushape slot. In this paper a reconfigurable microstrip patch antenna for possible applications in. A k band patch antenna with reconfigurable frequency and polarization. Keywords reconfigurable microstrip patch antenna, slots, swi tches, dual band, resonant frequency. Ppt frequency reconfigurable microstrip patch antenna. The microstrip patch antenna has radiating patch on one side and ground on the other. In the proposed design, a circular patch antenna with circular slot using two pin diodes at the centre. Frequency reconfigurable microstrip patchslot antenna with. The proposed antenna design will use simple microstrip patch with inset feed and a ground plane with two square concentric ring slots as defected ground structure dgs and rogers rt 5880 as the substrate of.
The antenna is capable to reconfigure up to three different frequency bands. Ismail frequency recongurable microstrip patchslot antenna with directional radiation. Patch of the antenna is deposited over a silicon platform. The reconfigurable antenna is composed of a square radiating patch, four varactor diodes, and two lumped capacitors. Compact reconfigurable dual frequency microstrip antenna using varactor diodes, progress in electromagnetics research,pier 60, 197205, 2006. Frequency reconfiguration of microstrip patch antenna with. Study of frequency and polarization reconfigurable on. In this paper, a reconfigurable microstrip patch antenna with rf mems switch providing frequency reconfiguration is presented. This page covers advantages and disadvantages of microstrip patch antenna. In this paper, a compact frequency reconfigurable circular patch antenna with an. Frequencyreconfigurable eshaped microstrip patch antenna.
Frequency reconfigurable microstrip circular patch antenna. Frequency reconfigurable uslot microstrip patch antenna abstract. Reconfigurable microstrip patch antenna for frequency diversity using rf mems 0. The antenna is designed for wireless application covering 16. In this paper, a novel single feed frequency and polarization reconfigurable microstrip patch antenna is presented. A lot of work has been carried out frequency reconfigurable micro strip patch antenna for mobile communication standards summarized in 20. A frequencyreconfigurable microstrip patch switchable to slot antenna is proposed. This paper proposes a novel wideband to concurrent triband frequency reconfigurable microstrip antenna. This paper presents a dual band frequency and polarization reconfigurable microstrip antenna. Frequency reconfigurable circular patch antenna with an arc. Frequency and polarization reconfigurable microstrip antenna. The length and width of the stubs are optimised to cause a change in reactance because of a change in graphene resistance. Frequency reconfigurable microstrip patch antennas. Frequencyreconfigurable microstrip patch antennas with circular polarization abstract.
Introduction 1patch antennas are assigned different names such as printed antennas, microstrip patch antennas or simply microstrip antennas msa. At the two rf ports an impedance transformer matches the 50. Wearable microstrip antennae are suitable for wireless body area network. Introduction microstrip patch antennas are printed directly onto a circuit board it becoming more useful. A frequency reconfigurable microstrip patch antenna is proposed. The antenna is capable of frequency switching at six different frequency bands between 2. Wideband to concurrent triband frequency reconfigurable. Rf switches are applied to connect the load to the antenna in order to reconfigure the operating frequencies. Pdf design frequency reconfigurable microstrip patch antenna for. Design frequency reconfigurable microstrip patch antenna.
With a coaxial probe, two orthogonal resonant modes of the square patch antenna are simultaneously excited. Frequency reconfigurable bowtie antenna for bluetooth, wimax, and wlan applications, ieee trans. The antenna is capable of frequency switching at nine different frequency bands between 1. A frequencyreconfigurable microstrip slot antenna is proposed. Upon toggling the switch between on and off states, the antenna can be reconfigured 47. Introduction reconfigurability has become a crucial feature in m odern wireless communication world. In order to produce directional radiation pattern at all frequency bands, a reflector is installed at the back of the frequency reconfigurable slotpatch antenna 23. These slot are cut in the ground to produces eight reconfigurable different frequency bands. The antenna consists of a microstrip feed connected to a circular radiating element divided into three patches which are connected through silicon pin diodes used as switches for achieving reconfigurability as being cheap and easy to implement having high switching capabilities. Index termsantenna, antenna radiation pattern, electromagnetic propagation, microstrip antenna, patch antenna i. Frequency reconfigurable microstrip patchslot antenna. The two feeds are positioned on the right and left diagonal of microstrip antenna. Frequency reconfigurable patch antenna with bias tee for.
A quadpolarization and frequency reconfigurable square. This compact reconfigurable microstrip patch antenna provides different band of. This project proposes the design of a reconfigurable micro strip patch antenna using mems technology a reconfigurable microstrip patch antenna of operating frequency in the range of 58 ghzcband, for the application of wireless communication has. The center frequency will be approximately given by. The microstrip patch antenna produces three reconfigurable frequency bands while the slot produces another three frequency bands at the lower frequency region. Reconfigurable microstrip patch antenna for frequency. The main focus of this paper is to attain reconfigurability so that this microstrip patch antenna is used for bluetooth, wlan, wimax and advanced wireless service aws applications. Antenna switching between four frequency bands isra nazir, inam elahi rana, noor ul ain mir, and kanwal afreen abstractan e. A frequency reconfigurable microstrip patch switchable to slot antenna is proposed. Patch antenna with switchable slots pass for dualband operation. By controlling the onoff states of the five pin diodes mounted on the arcshaped slot, the effective length of the arcshaped slot and the effective length of antennas current are changed, and accordingly six.
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