Frequency reconfigurability can also be obtained by modifying feeding structure orand adding parasitic radiators. A reconfigurable microstrip patch antenna for various. With a coaxial probe, two orthogonal resonant modes of the square patch antenna are simultaneously excited. Frequency reconfigurable triangular microstrip patch antenna.
Nandhini 2 1assistant professor, department of electronis and communi cation engineering, m. The proposed design of frequency reconfigurable circular patch antenna is simulated on em simulation software. Design and implementation of reconfigurable microstrip patch antenna for sband applications p. Pdf design frequency reconfigurable microstrip patch antenna for.
These slot are cut in the ground to produces eight reconfigurable different frequency bands. Abstract in this paper, a frequency reconfigurable circular antenna design and development is proposed for wireless devices. A novel frequency reconfigurable microstrip patch antenna using. Comprehensive parametric studies were carried out to determine how to design these proposed patch antennas based on their materials dimensions and their geometry. The antenna is designed for wireless application covering 16. This shift is due to fringing fields around the antenna. Design of an aperturecoupled frequencyreconfigurable. In this thesis three different frequency reconfigurable microstrip patch antenna has been proposed for cognitive radio system. A frequency band reconfigurable antenna is designed and experimentally analyzed.
Design of frequency reconfigurable annular microstrip patch antenna using pin diode abstract. Modeling of pin diode in hfss and frequency reconfigurable antenna. The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. Paper 9 presents a novel design of a frequency reconfigurable stacked patch microstrip antenna. The reconfiguration is carried out by switching the diodes onoff. The proposed square patch antenna has the impedance. The frequency reconfigurability is achieved by varying the varactor diode capacitance. The rectangular patch antenna is simplest form of patch antenna as shown in fig. In this study, a simple design of a fourelement circularly polarised dual frequency reconfigurable microstrip patch antenna array for millimetrewave applications is proposed. A frequency tuning with polarization microstrip patch antenna design with varactor diode is presented. Two antenna configurations that resonate at 8 ghz and 10 ghz have been designed and with a reconfigurable double stub tuner each has been implemented. Design of frequency reconfigurable antenna using varactor. To set up the antenna tuning mechanism, two groups of varactors with a measured tuning range of 0. The objective of this paper is to design and fabricate a 2element frequency reconfigurable microstrip patch array antenna.
Kumarasamy college of engineeringautonomous,karur, tamil nadu, india. A simple design of circularlypolarized cp microstrip antennas with frequency agility is described. Three switches are used to produce six reconfigurable frequencies. 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 the proposed design a rectangular patch antenna with slots at the centre frequency 10 ghz that can be reconfigured in the. The most common version of printed antenna is microstrip antenna, which consists of a metallic patch above a ground plane. This paper highlights the proposed design for a dual band frequency reconfigurable microstrip patch antenna fed through a 50. Antenna design and operation the proposed antenna is described in this section. Study of frequency and polarization reconfigurable on square. In the present work, return loss, vswr, gain and directivity of designed antenna has been computed. The design of a reconfigurable dual frequency microstrip patch antenna using rf mems switches has been established and the minimum number of switches required has been determined. Feb 08, 2018 the antenna is slotted with pin in the ground layer. Design frequency reconfigurable microstrip patch antenna for s.
Small microstrip patch antenna for future 5g application in rf. Switching between different frequency band is achieved using six rfmems switches. Frequencyreconfigurable microstrip patch antennas with. The reconfigurability is achieved via a rotational motion of a part of the antenna patch. In this paper, frequency reconfigurable slotpatch antenna with reflector at the. This antenna mainly comprises of a corner truncated square patch with a rectangular ring slot, eight pin diodes and six conductive pads. Design of frequency reconfigurable microstrip patch. The proposed structure was simulated by using the electromagnetic em simulation software. Frequency reconfigurable microstrip patchslot antenna. So that the signal strength will be high an d can cover an larger area. Aces revised copy dual frequency microstrip patch antenna. Vijay shanker et al frequency reconfigurable microstrip patch antenna for wireless applications using pin diode 927 international journal of current engineering and technology, vol.
Frequency reconfigurable microstrip circular patches antenna for wireless devices here, frequency reconfigurable circular antenna design is used for the proposed method. The antenna is capable of frequency switching at nine different frequency bands between 1. The simulated and measured results of those antennas are presented and compared. The structure consists of an lshaped slot, pin diodes, lumped capacitors and bias networks.
Lampshaped frequency reconfigurable microstrip patch array. In this paper, the authors present innovative design of a compact reconfigurable microstrip patch antenna system using different rectangular rings. Frequency reconfigurable patch antennas have attracted significant attention due to their ability to cover multiple frequency bands 1723. The patch antenna is proposed to tune between two frequencies, i. Design of reconfigurable microstrip patch antenna for wlan. Keywords reconfigurable microstrip patch antenna, slots, swi tches, dual band, resonant frequency. The two feeds are positioned on the right and left diagonal of microstrip antenna. Yagi uda shaped frequency reconfigurable microstrip patch antenna is presented. Frequency reconfigurable microstrip patchslot antenna with. Study of frequency and polarization reconfigurable on square patch antenna. A frequencyreconfigurable microstrip patch switchable to slot antenna is proposed. Introduction 1patch antennas are assigned different names such as printed antennas, microstrip patch antennas or simply microstrip antennas msa.
For the new reconfigurable antenna array, the beam pattern selectivity can be obtained. Cst studio tutorial03 frequency reconfigurable antenna. A quadpolarization and frequency reconfigurable square ring. The antenna consists on a square patch excited by a coaxial probe. Polarization reconfigurability in a1 or a2 is realized with diodes d5, d6, d7 and d8. The design starts with a microstrip patch antenna where figure 1a demonstrates the geometry of the design with a slot inserted at the ground plane. A lot of work has been carried out frequency reconfigurable micro strip patch antenna for mobile communication standards summarized in 20. When the equivalent capacitance values of the varactors are increased. Those switches are positioned in the slot places underneath the. A frequency reconfigurable printed microstrip fed patch antenna is proposed here. This work provides a methodology to design reconfigurable antennas with pin diode switch. Frequency reconfigurable microstrip circular patch antenna.
Simulated design of the proposed antenna illustrates that has improved antenna performances in terms of gain and return loss compared to the design proposed in 7. In the proposed design, a circular patch antenna with circular slot using two pin diodes at the. Refer microstrip line basics and types and desgin of microstrip patch antenna for mobile for more information. A square slot has been introduced in order to realize pin diode effect in antenna parameters. Benefits or advantages of microstrip antenna following are the benefits or advantages of microstrip antenna. Recent developments in the wireless communication industry continue to drive the requirements for small, compatible, and affordable reconfigurable antennas. Reconfigurable patch antenna, fr 4 substrate, frequency. Advantages and disadvantages of microstrip patch antenna. Design of a dualband frequency reconfigurable patch. Antenna switching between four frequency bands isra nazir, inam elahi rana, noor ul ain mir, and kanwal afreen abstractan e. The reconfigurable antenna is composed of a square radiating patch, four varactor diodes, and two lumped capacitors. Microstrip antennas are often used where thickness and conformability to the host surface are key requirements. The novel design utilizes two resonance modes of a microstrip antenna with shorting vias at the patch center. In this paper, a novel single feed frequency and polarization reconfigurable microstrip patch antenna is presented.
The simple design consists of two slots and two feeds. Pdf design and study of frequency reconfigurable antenna. 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. The structure of the frequency tunable antenna is composed of a microstrip patch antenna, impedance matching network, transmission feed line, and switching tuning circuit may optical, electronic or mechanical. Pdf design of frequency reconfigurable microstrip patch antenna. The reconfigurable antenna consists of five different. Result and discussion the switching conditions considered to achieve the.
Study of frequency and polarization reconfigurable on. Microstrip patch antenna, reconfigurable frequency, pin diode. In 1999, a reconfigurable leaky patch antenna using pin diode was presented in 5. The proposed antenna is using the dgs technique which uses three pin diodes with three rectangular slots. This paper presents the design structure of annular microstrip patch antenna and simulation in range from s band to ku band. A frequency and patternreconfigurable antenna based on a centershorted microstrip patch is presented.
Frequency reconfigurable microstrip patch antenna for. Design and analysis of frequency reconfigurable microstrip. Frequency reconfigurable antenna based on commercial graphene nanoplatelets. With all these diodes on, the structure operates as square microstrip antenna a1 resonating at frequency, f 1. The antenna exhibits the property of change in frequency which. A new design multiband microstrip patch antenna is introduced. In order to produce directional radiation pattern at all frequency bands, a reflector is installed at the back of the frequency reconfigurable slot patch antenna 23. Design and analysis of a frequency reconfigurable microstrip.
The frequency of operation of the patch antenna of figure 1 is determined by the length l. At the two rf ports an impedance transformer matches the 50. Behavior of the antenna under different light intensities is investigated and compared to a reference copper antenna. The antenna design consists of three pin diodes which are placed in different positions on the patch. Frequency reconfigurable patch antenna using pin diode at xband abstract. The patch conductors usually made of copper or gold can be virtually assumed to be of any shape. The shape and size of patch determine the frequency of operation of the antenna. A frequency reconfigurable rotatable microstrip antenna design. This paper proposes a frequency reconfigurable microstrip patch antenna using microstrip feeding technique for the frequency band from 1. A novel frequencyreconfigurable microstrip antenna composed of organic semiconductor polymer p3ht is proposed. The proposed reconfigurable antenna has four patches designed to cover the frequency band from 1.
Oct 05, 2016 modeling of pin diode in hfss and frequency reconfigurable antenna. A frequency and patternreconfigurable centershorted. It consists of a square patch of side a printed on rt duroid substrate of. Reconfigurable microstrip fractal antenna design with line feeding in. Design of a simple circularly polarised dualfrequency. 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. 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.
Design and analysis of frequencyreconfigurable microstrip antenna using multiple parasitic patches. Design and implementation of reconfigurable microstrip. Frequency reconfigurable circular patch antenna with an arc. Aug 19, 2011 to overcome the challenges of multi frequency operation a new scheme of frequency reconfiguration is proposed. A novel single feed frequency and polarization reconfigurable. Design and analysis of frequencyreconfigurable microstrip.
Abstractan effective design of a novel, compact, single feed, dual patch frequency reconfigurable. The aim of this paper is to design a novel structure of a frequency reconfigurable microstrip array antenna by using a combination of aperturecoupled and the stacked patch technology. Design of frequency reconfigurable micro strip patch. For example, frequency reconfigurable antennas are designed using rf mems. Pdf design of a frequency reconfigurable patch antenna. A frequency reconfigurable patch antenna design based on the characteristic mode analysis is presented. This research presents innovative design of a compact reconfigurable microstrip patch antenna system using different rectangular rings. Design of frequency reconfigurable microstrip patch antenna. This letter presents frequencyreconfigurable microstrip patch antenna with three switchable modes. The four sets of two different aperture slot shapes ishaped and hshaped are printed on the ground and are functional to transfer the wave and the signal to the selected radiating layers. With all these diodes off, it operates as a square ring antenna a2 resonating at frequency, f 2.
A pattern reconfigurable antenna with multibeam reconfiguration for satellite communication has also been reported in 4. For access to this article, please select a purchase option. Frequency reconfigurable microstrip patch antenna request pdf. To overcome the challenges of multi frequency operation a new scheme of frequency reconfiguration is proposed. Frequency reconfigurable patch antenna using pin diode at. In this paper the design of an xband frequency reconfigurable patch antenna has been demonstrated using pin diode. Frequency reconfigurable antenna for quintuple applications. A frequency reconfigurable antenna optimized to operate at 2. The antenna is slotted with pin in the ground layer. Frequency reconfigurable patch antenna with bias tee for. In this proposed work the frequency reconfigurable microstr. This paper presents a technique of frequency reconfigurable microstrip patch antenna for sband applications. The reconfigurability is achieved in the frequency ranges from 4. When the switch is on the electrical size of antenna becomes small and it resonates at higher umts 2100 mhz band with circular.
The antenna exhibits the property of change in frequency which results in change in return loss characteristics. A frequency reconfigurable microstrip patch antenna is proposed. This paper presents a new frequency reconfigurable antenna design. In the proposed design a rectang ular patch antenna with inverted u shaped slot at the center frequency 9. Secondly, the microstrip antenna was designed to operate at 100 mhz, but it is resonant at approximately 96 mhz. In the present work annular microstrip patch antenna has been reconfigured using annular rectangular patch and its simulation has been done on substrate fr4 dielectric constant 4. Frequency reconfigurable antenna based on commercial. The microstrip patch antenna produces three reconfigurable frequency bands while the slot produces another three frequency bands at the lower frequency region. Frequency reconfigurable circular patch antenna with an. The novel solution is to design antennas which has multiband, multimode, low profile, low cost and easy to integrate with portable devices. The antenna is capable to reconfigure up to three different frequency bands. New frequencyreconfigurable microstrip antenna composed. Design of frequency reconfigurable microstrip patch antenna for s. The return loss will be reduced to a maximum of 25db.
This paper presents a technique of microstrip patch antenna for sband and c band applications. Reconfigurable antenna array has received a lot of attention in presentday wireless communication systems. A frequency reconfigurable rotatable microstrip antenna. Design of frequency reconfigurable annular microstrip patch. The antenna exhibits the property of change in frequency which results in change in return loss characteristics depending upon the configuration request. A frequency reconfigurable rotatable antenna design for. Design of antenna the reconfigurable patch antenna can be designed using hfss software. Rectangular patch antennas are notoriously narrowband. Each shape corresponds to a different antenna structure.
The first resonant frequency shifts down by varying. From 1999 until the present day, microstrip antenna has been used as a platform to design reconfigurable antenna 612. The proposed design consists of a single probe fed microstrip triangular, dielectric substrate with the thickness, 3. Design of frequency reconfigurable micro strip patch antenna. 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. Design and analysis of frequency reconfigurable micro strip. In this, antenna two pin diode as used at center frequency 10 ghz of circular patch antenna with circular.
They operate at microwave frequencies where traditional antennas. With every rotation, a different antenna structure is fed in order to produce a different set of. Frequency and polarization reconfigurable microstrip antenna. A slot is etched on the ground plane of the antenna, where two varactor diodes are placed on each side of the slot in order to tune the lower band. The rotating part has the form of a circle and contains four different shapes. The proposed antenna designed on fr4 substrate with dielectric constant 4. Frequency reconfigurable uwb antenna design for wireless.
By definition, a printed antenna is one that is fabricated using standard photolithography technique. The antenna presents a reconfigurable lower band and a steady band at higher frequencies. Pdf on sep 1, 2015, babu lal sharma and others published design of frequency reconfigurable microstrip patch antenna for sband and. Design of frequency reconfigurable annular microstrip. Frequency reconfigurable tshaped microstrip patch antenna. Empirical relations relating to the design for rectangular rings for desired frequency band are. The microstrip antenna is a standard patch antenna with an inset feed to achieve an input impedance of 50 by varying.
In this paper, a new frequencyreconfigurable stacked patch microstrip antenna frspma with a new coupling method applied in an aperturecoupled technique controlled by the switching circuit is. Introduction reconfigurability has become a crucial feature in m odern wireless communication world. A quadpolarization and frequency reconfigurable square. The center frequency will be approximately given by. Design frequency reconfigurable microstrip patch antenna. This paper presents a dual band frequency and polarization reconfigurable microstrip antenna. A basic antenna structure to design pattern and pattern frequency reconfigurable antennas is proposed. Dec 20, 2017 microstrip square patch antenna using cst by shamsur rahman. This paper presents a technique of microstrip patch antenna for sband and cband applications. The current antennas being used need to be replaced with reconfigurable antennas so that the antennas become multifunctional with a considerable reduction in the size.
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