To design our stacked microstrip patch antenna at around 2 ghz. Request pdf frequency reconfigurable microstrip patch antenna a. By definition, a printed antenna is one that is fabricated using standard photolithography technique. Microstrip patch antenna mpa for wireless communication systems is proposed and studied in this paper. Frequency reconfigurable microstrip circular patch antenna. Study of frequency and polarization reconfigurable on. The patch antenna is proposed to tune between two frequencies, i. The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. Sreedhar kumar et al frequency reconfigurable triangular microstrip patch antenna for wireless applications 278 international journal of computer systems, issn23941065, vol. The antenna exhibits the property of change in frequency which results in change in return loss characteristics. Frequency reconfigurable microstrip patch antenna ieee xplore.
Introduction reconfigurability has become a crucial feature in m odern wireless communication world. Frequency reconfigurable microstrip patch antenna by name roll no. The effect of the air gap distance on the gain of the dual layer microstrip patch antenna at the desired frequency is shown in figure 4. A reconfigurable stacked microstrip patch antenna for. Keywords reconfigurable microstrip patch antenna, slots, swi tches, dual band, resonant frequency. Compared to the common rectangular slot circular patch antenna, the. A frequency reconfigurable microstrip patch antenna is proposed. Simulation and measurement results show that the nested patch antenna is suitable for dual band wlan sdr applications. Frequency reconfigurable circular patch antenna with an. A frequency reconfigurable dipole antenna based on a silicon radiator is presented. A frequency band reconfigurable antenna is designed and experimentally analyzed. A frequencyreconfigurable microstrip patch switchable to slot antenna is proposed.
Behavior of the antenna under different light intensities is investigated and compared to a reference copper. A gridslotted patch with two tunable varactors is placed on the top layer, a microstrip line is placed in the middle of two. A lowprofile frequency reconfigurable gridslotted patch. Design of frequency reconfigurable annular microstrip. Wideband to concurrent triband frequency reconfigurable. 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. Abstract this paper presents a selective frequency reconfigurable antenna, suitable for cognitive radio applications. The simple design consists of two slots and two feeds. Pdf frequencyreconfigurable antenna using metasurface. Deschamps in 1953, but didnt become practical until the 1970s when it was developed further by researchers such as robert e. Frequency reconfigurable triangular microstrip patch. The silicon radiator is activated with the aid of highly dense solidstate plasma by injecting carriers into the. This paper highlights the proposed design for a dual band frequency reconfigurable microstrip patch antenna fed through a 50. Three switches are used to produce six reconfigurable frequencies.
Yagi uda shaped frequency reconfigurable microstrip patch antenna is presented. New frequencyreconfigurable microstrip antenna composed. The two feeds are positioned on the right and left diagonal of microstrip antenna. The most common type of microstrip antenna is the patch antenna. Frequency reconfigurable uslot microstrip patch antenna abstract. How to export data from cst microwave studio to other software origin, hfss, hyperlynx 3d em duration. A gridslotted patch with two tunable varactors is placed on the top layer, a microstrip. The values of air, in figure 4, represent the distance in mm between the twosubstrate layers. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner.
Click here to go to our page on circular patch antennas new for september 2018. Reconfigurable microstrip patch antenna for wlan software defined. Microstrip patch antennas are used for communication purposes especially in military and civil applications. The antenna consists of two stacked substrates and three metal layers. Frequency and polarization reconfigurable microstrip antenna. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board.
The center frequency will be approximately given by. It consists of three substrate layers where all layers uses rtrogers 5880 with a thickness of h10. This letter presents frequencyreconfigurable microstrip patch antenna. The use of metamaterials in single or multiple layers has been shown to contribute a great deal to the design of a highgain microstrip antenna at 10.
Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. In thus paper a yagi uda shaped frequency reconfigurable microstrip patch antenna is presented. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. The proposed design of frequency reconfigurable circular patch antenna is simulated on em simulation software. A frequency reconfigurable microstrip patch antenna is presented. A frequency reconfigurable stacked patch microstrip. Frequency reconfigurable microstrip patch antenna for. The width of microstrip feed line is w 3 mm and length is l 5. In this paper, reconfigurable high gain split ring resonator microstrip patch antenna is designed and analysed.
Survey on different types of reconfigurable patch antenna. Frequency reconfigurable uwb antenna design for wireless. Introduction 1patch antennas are assigned different names such as printed antennas, microstrip patch antennas or simply. The patch antenna is loaded with three metamaterial split ring resonators to improve the performance. Fundamental structure of the antenna consists of a rectangular patch and a. This paper presents a dual band frequency and polarization reconfigurable microstrip antenna. Pdf frequency reconfigurable and high gain metamaterial. A novel frequency reconfigurable microstrip patch antenna using. This paper presents a novel of a frequency reconfigurable stacked patch microstrip antenna frspma integrated with radio frequency rf switch. Frequency reconfigurable microstrip patchslot antenna. Frequency reconfigurable microstrip patch antenna request pdf. Those switches are positioned in the slot places underneath the. This paper presents a novel lowprofile high gain frequency reconfigurable patch antenna with unidirectional radiation pattern by using a gridslotted patch with tunable varactors loading. Pattern and frequency reconfigurable monopole disc antenna using pin diodes and.
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. Frequency reconfigurable microstrip antenna for cognitive. A square patch of side a is printed on rt duroid substrate. A novel frequencyreconfigurable microstrip antenna composed of organic semiconductor polymer p3ht is proposed. The antenna is capable of frequency switching at nine different frequency bands between 1. Since the two ends of the patch are open, an openend correction is usually taken into account while calculating the physical length l of the patch. In this paper a simple microstrip patch antenna is designed in cst microwave studio at a resonant frequency of 2. Reflection coefficeint of the proposed antenna design the gain and the total efficiency of the proposed antenna is given in the figure 4. When the switch is on the electrical size of antenna becomes small and it resonates at higher umts 2100 mhz band. Multiple switches are used for gain enhancement of microstrip patch antenna. A frequency reconfigurable dipole antenna with solidstate.
Design of frequency reconfigurable multiband compact. Compared to other frequencyreconfigurable antennas available in the literature, the proposed antenna has advantages of a wide frequency tuning range over a bandwidth of 1. Sdr reconfigurable antenna, wlan antenna, tunable microstrip patch antenna. The antenna is capable of frequency switching at six different frequency bands between 2. An investigation of pattern and frequency reconfigurable microstrip. Frequency reconfiguration of microstrip patch antenna with. Design of frequency reconfigurable annular microstrip patch antenna using pin diode abstract. 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. The patch antenna is loaded with three metamaterial split ring resonator srr to. Metamaterial enhances microstrip antenna gain microwaves.
Frequency reconfigurable circular patch antenna with an arc. The frequency reconfigurable metasurfaced frms antenna is composed of a simple circular patch antenna and a circular ms with the same diameter of 40 mm 0. 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. Fundamental structure of the antenna consists of a rectangular patch and a ushaped patch. Microstrip patch antenna, reconfigurable frequency, pin diode.
The basics of patch antennas, updated orban microwave. Frequencyreconfigurable and highgain metamaterial microstrip. Design and analysis of frequencyreconfigurable microstrip. 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. In comparison with the conventional microstrip patch antenna, it is clear that there is an increment in the gain along the distance range from air 1 mm to air. In 1983, the concept of reconfigurable antenna was proposed in an usa patent. Reconfigurable microstrip patch antenna for wlan software. Reconfigurability is achieved by inserting pin diode switches in. A compact reconfigurable slotted microstrip patch antenna using pin. In this manuscript reconfigurable microstrip patch antenna loaded with switches is presented for gain enhancement. The design used with stubs are open, shorted and balanced stubs three stubs.
Frequency reconfigurable and high gain metamaterial microstrip. A patch antenna is a narrowband, widebeam antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, such as a printed circuit board, with a continuous metal layer bonded to. Frequency reconfigurable microstrip rectangular patch antenna using stubs the frequency reconfigurable microstrip antenna is connected to a feed line and two electronic switches. Antenna covers the various wireless standards wlan, wimax, wifi and uwb with return loss s11 frequencyreconfigurable microstrip slot antenna is proposed. The the aim to design such type antenna is to achieve multiband application which is the demand of current technology in frequency. Design and analysis of a frequency reconfigurable microstrip patch. Reconfigurable high gain split ring resonator microstrip. Properties of a basic microstrip patch a microstrip or patch antenna is a lowprofile antenna that has a number of advantages over other antennas. Wearable microstrip antennae are suitable for wireless body area network.
High antenna gain is generally desirable for communications systems, whether terrestrial or based on satellites. Frequency reconfigurable tshaped microstrip patch antenna. The antenna permits reconfigurable switching in up to ten frequency bands between 2. Design of reconfigurable microstrip patch antenna for wlan. 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. A reconfigurable nested microstrip patch antenna is designed on a. Simulation result of the proposed antenna a gain and b gain vs frequency graph. This paper proposes a novel wideband to concurrent triband frequency reconfigurable microstrip antenna. The shape and size of patch determine the frequency of operation of the antenna and its performance. Frequency reconfigurable, microstrip patch antenna, pin diode, return loss, gain, ansys hfss. Gain enhancement of a microstrip patch antenna using a. The frequency of operation of the patch antenna of figure 1 is determined by the length l. 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. Frequency reconfigurable uslot microstrip patch antenna.
In this study, the authors present a simple reconfigurable multiband antenna with two pin diode switches for worldwide interoperability for microwave access wimaxwireless local area networks wlan applications. Modeling of pin diode in hfss and frequency reconfigurable antenna. In this manuscript, reconfigurable microstrip patch antenna loaded with switches is presented for gain enhancement. Frequencyreconfigurable microstrip patchslot antenna. A high gain frequency reconfigurable microstrip patch antenna for. Here pattern and frequency reconfigurable microstrip antenna is designed by changing. Antennas using patches as constitutive elements in an array are also possible.
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