Compared to other frequency reconfigurable antennas available in the literature, the proposed antenna has advantages of a wide frequency tuning range over a bandwidth of 1. A reconfigurable patch antenna with independent frequency and. Two different configurations are studied with dualband behavior. Pdf a simple frequency reconfigurable microstrip patch antenna. A reconfigurable microstrip patch antenna with switchable slot has been designed, fabricated, and measured. The two feeds are positioned on the right and left diagonal of microstrip antenna. Design of a dualband frequency reconfigurable patch. The first category is based on frequency reconfigurability. The antenna presents a reconfigurable lower band and a steady band at higher frequencies. In the predictable design, there is a two diode ar. A wideband slot antenna with frequency and pattern reconfigurable characteristics for tdlte 3.
Microstrip antenna or patch antenna basics in antenna and wave propagation by. Design of frequency reconfigurable micro strip patch. Design of frequency reconfigurable patch antennas with defected. Minimization of the number of diodes as switches is also considered. This antenna mainly comprises of a corner truncated square patch with a rectangular ring slot, eight pin diodes and six conductive pads. A novel design of a frequency reconfigurable patch antenna which has applications in the l band, namely, radars. Reconfigurable patch that is resonant at four frequencies. Frequency reconfigurable patch antenna with bias tee for. Aelectrically reconfigurable antennas in case of electrically reconfigurable antenna, radiating structure andor radiating edges of antenna are. A frequency reconfigurable microstrip patch switchable to slot antenna is proposed. The antenna can operate at frequency ranges from 1. The antenna consists of a microstrip patch and a slot in the ground. The liquidmetal pixelated dipole antenna demonstrates frequency reconfigurability. Reconfigurable patch that is resonant at four frequencies randy l.
A frequency reconfigurable monopole antenna using for. 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. Comprehensive parametric studies were carried out to determine how to design these proposed patch antennas. In this paper the design of an xband frequency reconfigurable patch antenna has been demonstrated using pin diode. A lowprofile frequency reconfigurable gridslotted patch. Introduction reconfigurability has become a crucial feature in m odern wireless communication world.
A novel frequency reconfigurable microstrip patch antenna with circular slot is presented in this paper. The objective of this thesis is designing and testing of frequency reconfigurable mic rostrip patch antenna with resonating frequency of 2. This paper proposes a novel wideband to concurrent triband frequency reconfigurable microstrip antenna. 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. Design of frequency reconfigurable patch antennas with defected ground structures using genetic algorithm. Frequency reconfigurable microstrip patch antenna final project presentation presented by. Design frequency reconfigurable microstrip patch antenna for. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. The microstrip patch antenna produces three reconfigurable frequency bands while the slot produces another three frequency bands at the lower frequency region. Those switches are positioned in the slot places underneath the. Study of frequency and polarization reconfigurable on square. A simple frequency reconfigurable microstrip patch antenna for multiband applications is proposed.
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 this study, it is observed that frequency diversity can obtained. Design of a dualband frequency reconfigurable patch antenna. The presented work is a y slotted mmwave reconfigurable patch antenna, suitable for radar, satellite communications, 5g generation wireless network and millimeter wave energy harvesting. Frequency reconfigurable triangular microstrip patch antenna. Frequency reconfigurable patch antenna with bias tee for wireless. The proposed antenna is using the dgs technique which uses three pin diodes with three rectangular slots. Frequency reconfigurable triangular microstrip patch. In this paper two ultra wide band frequency reconfigurable microstrip patch antennas for cognitive radio applications were designed. 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. Reconfigurable microstrip antennas are gaining much attention due to their numerous. Frequency reconfigurable antenna designs using pin diode for.
Microstrip patch antenna, reconfigurable frequency, pin diode. Ppt frequency reconfigurable microstrip patch antenna. Microstrip antennas are often used where thickness and conformability to the host surface are key requirements. A simple design of circularlypolarized cp microstrip antennas with frequency agility is described. Compared to other antennas, reconfigurable antennas have more advantages and better prospects. The antenna is capable of frequency switching at nine different frequency. 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. A lot of work has been carried out frequency reconfigurable micro strip patch antenna. The tuning of frequency is realized by changing its effective. In this paper, a compact frequency reconfigurable circular patch antenna with an arcshaped slot loaded in the ground layer is proposed for multiband wireless. Reconfigurable antennas can be classified into three different categories. The bias line has been placed above the substrate with some. 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.
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. They are light in weight, smaller in dimension and lower in price. Frequency reconfigurable antenna using metasurface for. This paper presents a dual band frequency and polarization reconfigurable microstrip antenna. A quadpolarization and frequency reconfigurable square. A rectangular patch with a microstrip feed is used as the antenna. Pdf analysis of reconfigurable microstrip patch antenna. Abstract in this paper, a frequency reconfigurable circular antenna design and development is proposed for wireless devices. Frequency reconfigurable microstrip patch antenna for.
The reconfigurable antenna is composed of a square radiating patch, four varactor diodes, and. Frequency reconfigurable patch antennas have attracted significant attention due to their ability to cover multiple frequency bands 1723. Evaluation of modeling accuracy of reconfigurable patch. Frequency reconfigurable microstrip patch antenna with circular slot. The antenna is capable of frequency switching at nine different frequency bands between 1. Frequencyreconfigurable microstrip patchslot antenna ieee. A frequency reconfigurable patch antenna design based on the characteristic mode analysis is presented. In 7, two pin diode switches are placed on the connecting lines of a simple feed network to the patch elements. A reconfigurable patch antenna with independent frequency. Abstracta frequency reconfigurable antenna designed using metasurface ms to operate at around 5 ghz is studied and proposed. His recent research interest focuses on wideband antennas, patch antennas, base station antennas, reconfigurable antennas, millimeterwave antennas, and filtering antennas. These slot are cut in the ground to produces eight reconfigurable different frequency bands. This study focuses on a frequency reconfigurable antenna that is designed into a multilayer structure stacked patch. Frequencyreconfigurable microstrip patch antennas with.
A compact frequency reconfigurable antenna for lte mobile. Design of reconfigurable microstrip patch antenna for wlan. Frequency reconfigurable microstrip circular patch antenna. Above concept is used in paper 6 and 4 to obtain multiband operation. Shastry a free powerpoint ppt presentation displayed as a flash slide show on id. The antenna presented in 6 is shown in figure 4, it consists of a radiating circular patch with a slot below the circular patch. Upon toggling the switch between on and off states, the antenna. A square slot has been introduced in order to realize pin diode effect in antenna parameters.
Design of frequency reconfigurable patch antennas with. Frequency reconfigurable circular patch antenna with an. With a coaxial probe, two orthogonal resonant modes of the square patch antenna are simultaneously excited. Frequencyreconfigurable lowprofile circular monopolar.
A frequency reconfigurable dipole antenna based on a silicon radiator is presented. Shastry a free powerpoint ppt presentation displayed as a. Upon toggling the switch between on and off states, the antenna can be reconfigured 47. Two pin diodes are loaded in the slots to produce two different frequency. A frequency reconfigurable dipole antenna with solidstate. Frequency and pattern reconfigurable yagi patch antenna.
Design of a frequency reconfigurable microstrip patch antenna for. Jun 27, 2018 compared to other frequency reconfigurable antennas available in the literature, the proposed antenna has advantages of a wide frequency tuning range over a bandwidth of 1. Design of frequency reconfigurable micro strip patch antenna. Keywords reconfigurable microstrip patch antenna, slots, swi tches, dual band, resonant frequency. Three switches metal strips are used as switch are placed in the slot. Abstractevaluation of frequency reconfigurable patch antennas for multistandard personal communication systems, using pin diodes as switches. Apr 01, 20 in 35, new techniques for designing frequency reconfigurable slot antennas are presented. This paper presents a technique of frequency reconfigurable microstrip patch antenna for sband applications. A novel frequency reconfigurable microstrip patch antenna using. By an appropriate definition of cost function, the antenna can operate in different. Switching between different frequency band is achieved using six rfmems switches.
This paper contributes uniquely to the field of antenna design in two ways. A simple frequency reconfigurable microstrip patch antenna. Frequency and polarization reconfigurable microstrip antenna. The antenna has a rectangular patch with two meandered slots. Comprehensive parametric studies were carried out to determine how to design these proposed patch antennas based on their materials dimensions and their geometry. Evaluation of modeling accuracy of reconfigurable patch antennas. Wideband to concurrent triband frequency reconfigurable.
Sreedhar kumar et al frequency reconfigurable triangular microstrip patch antenna for wireless applications 278 international journal of computer systems, issn23941065, vol. Uwb frequency reconfigurable patch antenna for cognitive radio. In the proposed design, a circular patch antenna with circular slot using two pin diodes at the. The antenna consists of a microstrip feed connected to a. A novel single feed frequency and polarization reconfigurable. When the switch is on the electrical size of antenna. It can be switched between four bands using two pin diodes by altering current distribution across the slot edges.
Multiband, frequency reconfigurable, and metamaterial. A frequencyreconfigurable microstrip patch switchable to slot antenna is proposed. The frequency reconfiguration is possible due to the presence of square slots on each of edges of the patch. The antenna consists of a microstrip feed connected to a circular radiating element divided into three patches which are. In this paper, a novel single feed frequency and polarization reconfigurable microstrip patch antenna is presented.
In order to provide a dynamic response, reconfigurable antennas. When the equivalent capacitance values of the varactors are increased. The frequency reconfigurable metasurfaced frms antenna is composed of a simple circular patch antenna. Antenna switching between four frequency bands isra nazir, inam elahi rana, noor ul ain mir, and kanwal afreen abstractan e. A frequency tunable halfwavelength dipole antenna is realized using an array of electrically actuated liquidmetal pixels. The aim is to tune the operating frequency of the antenna and to have a single multifunctional antenna in a small terminal for many applications. Study of frequency and polarization reconfigurable on square patch antenna 149 conclusion in this paper a varactor diode loaded frequency and polarization reconfigurable antenna is designed and simulated. At the two rf ports an impedance transformer matches the 50. The use of different mixing materials to ensure reconfiguration and improvement of antenna. A k band patch antenna with reconfigurable frequency and polarization. Frequency reconfigurable patch antenna using pin diode at xband abstract. Survey on different types of reconfigurable patch antenna. Frequencyreconfigurable dipole antenna using liquidmetal.
This research presents innovative design of a compact reconfigurable microstrip patch antenna system using different rectangular rings. By using different reconfiguration of patch we got different result of gain, bandwidth and efficiency. A frequency reconfigurable microstrip patch antenna is proposed. Fundamental structure of the antenna consists of a rectangular patch and a ushaped patch. In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism such as rf switches, varactors, mechanical actuators or tunable materials that enable the intentional redistribution of the rf currents over the.
A frequency reconfigurable printed microstripfed patch antenna is proposed here. Design of reconfigurable antenna for wireless applications. Frequency reconfigurable circular patch antenna with an arc. Frequency reconfigurable microstrip patchslot antenna with. The antenna consists of two symmetric slots that are fed by a forkshaped microstrip line. Frequency and pattern reconfigurable yagi patch antenna article in microwave and optical technology letters 503. A novel frequency reconfigurable antenna is presented based on a circular monopolar patch antenna. Eight varactor diodes are introduced to bridge the gaps between the circular patch and the sectorshaped patches. Jun 28, 2018 in this paper, a genetic algorithm optimization in conjunction with the internal multiport method is applied for determination of slot shape and pin diode location in the ground plane for design of frequency reconfigurable patch antennas. The frequency reconfiguration is achieved by using a pair of pin diodes in the antenna feed line to switch the antenna. This antenna mainly comprises of a corner truncated square patch with a rectangular ring. The antenna can be used for applications operating in the frequency range of 0 2.
The varactor diode is placed between the inner patch and outer ring. 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 simple design consists of two slots and two feeds. Directional and bidirectional patterns are produced by the patch and slot, respectively.
In addition, the incorporation of metamaterials yields controllable and promising radiation properties. The first resonant frequency shifts down by varying. It consists of a square patch of side a printed on rt duroid substrate of. Study of frequency and polarization reconfigurable on. A frequency reconfigurable microstrip patch antenna is presented. A compact frequency reconfigurable unequal uslot antenna. 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. Modeling of pin diode in hfss and frequency reconfigurable antenna. The reconfigurable antenna is composed of a square radiating patch, four varactor diodes, and two lumped capacitors. Three switches are used to produce six reconfigurable frequencies.
In 6, mems switch is used for its low power dissipation and insertion loss. First, it provides the domain and technical aspects associated with multiband, frequency reconfigurable, and metamaterial antennas. A lot of work has been carried out frequency reconfigurable micro strip patch antenna for mobile communication standards summarized in 20. The antenna has been designed to work at two operating frequencies with small frequency. A compact pentaband pifa with the use of two slits and ground pins for 3g mobile applications was designed within a limited antenna. Based on the reconfiguration techniques frequency reconfigurable antennas can be classified into four categories as below. The proposed antenna designed on fr4 substrate with dielectric constant 4. A graphene based frequency reconfigurable square patch. The antenna comprises of a centerfed circular patch surrounded by four sectorshaped patches. Current research on tunable patch antennas for wireless applications has mostly focused on the dimensional variations of patch elements, such as geometry and substrate materials, using different techniques to achieve the reconfiguration. Frequency reconfigurable microstrip patchslot antenna. Microstrip antenna or patch antenna basics in antenna and wave propagation.
Reconfigurable antenna can be classified into four types such as frequency, polarization, radiation and multiple reconfigurable antennas 1. Frequency reconfigurable uslot microstrip patch antenna. Frequencyreconfigurable stacked patch microstrip antenna. The use of liquid metal as a switching mechanism for a frequency reconfigurable edgefed microstrip patch antenna designed to operate in either the 2.
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