This antenna mainly comprises of a corner truncated square patch with a rectangular ring slot, eight pin diodes and six conductive pads. Using only one switch and a single patch, the antenna operates at 4. For the novel frequency and pattern reconfigurable yagiuda patch antenna detailed in chapter 4, two slots have been used on driven element to achieve frequency and pattern reconfigurability, and two openend stubs have been used to adjust working frequency and increase bandwidth. A lot of work has been carried out frequency reconfigurable micro strip patch antenna for mobile communication standards summarized in 20. A novel rf mems switch on frequency reconfigurable antenna. The proposed antenna can produce left hand circular polarization or right hand circular polarization according to the on. Sep 29, 2017 a novel frequencyreconfigurable patch antenna using lowloss transformer oil abstract. Design of frequency and patternreconfigurable wideband slot. A novel design of broadband patch antenna is presented in this paper. A novel frequencyreconfigurable patch antenna using lowloss. Reconfigurable dualband patch antenna using varactorloaded slot. A twolayer substrate is introduced between the patch and ground plane. The proposed reconfigurable slot cr antenna can work at three modes by controlling the switches at on and off states.
Nanbo jin designed the patch antenna 2 with switchable slot pass. A novel design of reconfigurable monopole antenna with. Dgs has been used in patch antennas for bandwidth and. The antenna consists of a pair of halfwave dipoles which are connected in parallel through a coplanar stripline, and a rectangular ground with a h shape slot on the center and four small rectangular cuts on four angles. A novel reconfigurable microstrip antenna with frequency and polarization diversities has been designed and fabricated. A novel frequency reconfigurable patch antenna is proposed and analysed using the finitedifference timedomain fdtd method. The simulated results indicate that the antenna is capable of. Microwave and optical technology letters 53, 751 757. The feed line is tapered to provide uwb matching condition.
In this design, an ideal model was used to imitate a pin diode. Duallayered polarization and frequency reconfigurable microstrip antenna by rotating breachtruncated circular radiator. The frequencyreconfigurable capability of the antenna is achieved by using a switchable slotted structure on the ground plane. For the novel frequency and pattern reconfigurable yagiuda patch antenna detailed. A novel reconfigurable microstrip patch antenna is presented that is monolithically integrated with rf microelectromechanical systems mems capacitors for tuning the resonant frequency. Compared to traditional broadband antennas, frequency reconfigurable. The switch uses coplanar waveguide transmission line for signal transmission, which designed with special mechanical structures, the size of the switch beam is 320. 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. The designed antenna has a simple structure and compact size of 40x40 mm. Ebg loaded compact widenotch band antenna with frequency. Bandwidth enhancement of microstrip patch antenna using. When the protruding slot arms are absent, the antenna shows a single resonant frequency at 1. A design of reconfigurable antenna using novel dgs with.
They are similar at both bands with broadside gain 7. Huff presents a pattern and frequencyreconfigurable microstrip antenna. The patch antenna is fed by an fshaped probe, which consists of one upper and two lower horizontal arms, as well as a vertical arm that connects them. Novel reconfigurable microstrip antenna request pdf. An additional resonance is introduced by the crr to broaden the bandwidth.
Survey on different types of reconfigurable patch antenna for. Frequency reconfigurable, microstrip patch antenna, pin diode, return loss, gain, ansys hfss. The basic structure of the antenna is further modified by placing the ushaped. A filtering patch antenna with reconfigurable frequency. One limitation is their inherently narrow bandwidth. Abstractthis paper presents a novel frequency recon. Reconfigurable wideband patch antenna for cognitive radio. A novel frequencyreconfigurable patch antenna is proposed and analysed using the finitedifference timedomain fdtd method. A novel differential dipoles frequency reconfigurable antenna is proposed in this letter. A frequency reconfigurable antenna is arguably the most. A reconfigurable multiband antenna for rfid and gps.
Frequency reconfigurable microstrip patchslot antenna with. A novel frequencyreconfigurable patch antenna using low. Hence the main objective is on to increase the bandwidth of the antenna. A novel design of microstrip antenna with reconfigurable.
A novel reconfigurable microstrip antenna with polarization. This communication proposes a frequencyreconfigurable patch antenna using lowloss transformer oil. Oct 22, 2018 a filtering patch antenna with reconfigurable frequency and bandwidth using fshaped probe abstract. A pattern reconfigurable antenna with multibeam reconfiguration for satellite communication has also been reported in 4. In order to compare the different types of antennas, the physical dimensions of the antenna can be confronted to the bandwidth achieved. Reconfigurable antennas for wireless communications.
Coupled frequencyreconfigurable stacked patch microstrip antenna frspma integrated with pin diode switch progress in electromagnetics research c, vol. The frequency reconfigurable capability of the antenna is achieved by using a switchable slotted structure on the ground plane. Novel frequency reconfigurable slotted patch antenna. In this paper, a novel single feed frequency and polarization reconfigurable microstrip patch antenna is presented. Reconfigurable microstrip patch antenna using mems. In 1999, a reconfigurable leaky patch antenna using pin diode was presented in 5. Moreover, the prototype shows high radiation efficiency because. The simulated radiation patterns at both bands for c 0.
Study of reconfigurable multiband micro strip patch antenna. Novel design of microstrip antenna with improved bandwidth. Compared with the mpa without the crr, the bandwidth of the proposed antenna. Three switches are used to produce six reconfigurable frequencies. A novel reconfigurable microstrip fractal uwb antenna with. To give some concrete examples of bandwidth, here is a table of the bandwidths for common antenna types. A novel single feed frequency and polarization reconfigurable.
Two parasitic elements are attached to two sides of patch having a square slot for improvement of frequency band response. Reconfigurable wideband patch antenna for cognitive radio h. Reconfigurable microstrip patch antenna using mems technology. The frequency of operation of the patch antenna of figure 1 is determined by the length l. A novel frequency reconfigurable slotted patch antenna structure is presented here. A rectangular ring slot is etched in the patch with outer dimensions l. The slots made on the aperture of the antenna are made to orient by making their axis as reference either in clockwise or anticlockwise direction. The antenna is frequencyreconfigurable using a pin diode switch.
A wideband filtering patch antenna is investigated in this paper. A novel design approach and simulation of frequency reconfigurable micro strip patch antenna for wifi, wlan and gps applications abstract. International journal of microwave and wireless technologies, vol. The bandwidth of the proposed antenna is found to be 30. In this paper, we propose a novel frequencyreconfigurable antenna with the capability to switch between uwb, narrowband, dualband and triple band modes. Those switches are positioned in the slot places underneath the. Bemani, m and nikmehr, s 2011 a novel reconfigurable multiband slot antenna fed by a coplanar waveguide using radio frequency microelectromechanical system switches. This paper describes the design and performance of a novel frequency reconfigured micro strip patch antenna structure made of three different antennas which are optimized theoretically for various wireless. The above equation says that the microstrip antenna should have a length equal to one half of a wavelength within the dielectric substrate medium. The simulated results indicate that the antenna is capable of shifting i. 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. A novel compact size of reconfigurable eshaped microstrip single patch antenna was designed and analyzed for dualband at 3.
A frequency reconfigurable microstrip patch antenna is proposed. Their applications are limitless, because of their light weight, compact size, and ease of manufacturing. In this paper, a novel compact frequency reconfigurable monopole antenna with switchable symmetric slot structure is presented. A novel reconfigurable mmic antenna with rfmems resonator. Design of mems reconfigurable eshaped patch antenna. Frequency reconfigurable patch antennas have attracted significant attention due to their ability to cover multiple frequency bands 1723. The proposed antenna has a simple structure, consisting of a corner. The width of microstrip feed line is w 3 mm and length is l 5.
This orientation distributes the surface currents in different ways resulting in change of its resonance frequency. A novel slot antenna with reconfigurable meanderslot dgs for. A novel compact frequency reconfigurable antenna for. The unique feature of the proposed antenna design is that it provides polarisation reconfiguration without considerable deviation in. In this paper, a novel frequency reconfigurable eshaped patch antenna frespa design is presented as a new wideband patch antenna for possible use. A novel compact frequency reconfigurable antenna for vhfuhf. Theproposed antenna consists of adefective ground structure dgs to enhance the impedance bandwidth from 3. Reconfigurable dualband patch antenna using varactor. This will answer such questions as what is the bandwidth of a dipole antenna. The upper one is made of homogeneous polytetrafluoroethylene. For a fare comparison, we set the center frequency for each antenna to 1 ghz mhz. The broadband property of the proposed antenna is achieved by choosing a proper selection of dimensions and positions of slot and notch on the radiating patch. Frequency reconfigurable microstrip circular patch antenna. This paper presents the design, analysis, simulation of a novel radiofrequency micro electromechanical system rf mems switch on the frequency reconfigurable antenna application.
Conclusion a novel reconfigurable dualband patch antenna design using a varactorloaded slot has been proposed. In this paper, a novel compact frequencyreconfigurable monopole antenna with switchable symmetric slot structure is presented. In this paper, a novel frequency reconfigurable antenna design and development is proposed for wireless devices. Improving bandwidth rectangular patch antenna using.
Using only one switch and a single patch, the antenna operates at. 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 filtering patch antenna with reconfigurable frequency and bandwidth using fshaped probe abstract. In this paper, a novel frequency reconfigurable eshaped patch antenna frespa design is presented as. Antenna switching between four frequency bands isra nazir, inam elahi rana, noor ul ain mir, and kanwal afreen abstractan e.
Phase shifter and its application in beamforming antennas describes a novel. The center frequency will be approximately given by. From 1999 until the present day, microstrip antenna has been used as a platform to design reconfigurable antenna 612. Now a days, microstrip patch antennas have become a rapidly growing area of research. A filtering patch antenna with reconfigurable frequency and. Novel frequency reconfigurable microstrip patch antenna based.
The proposed design of frequency reconfigurable circular patch antenna is simulated on em simulation software. In this letter, a novel reconfigurable microstrip antenna with polarization diversity is proposed. The proposed reconfigurable antenna is tested using a hp 8510c vector network analyzer. A novel frequency reconfigurable microstrip patch antenna using. The frequency diversity characteristic of this antenna is realized by placing a pindiode in the middle of a uslot of a microstrip patch. The antenna efficiency and radiation efficiency at both the frequency is 90% to 100%. A novel design of a frequency reconfigurable patch antenna which has. The antenna bandwidth was expanded by utilizing the coupling effect between the notched patch and the resonant aperture for dualband rfid reader antenna 155 mm x 230 mm in size 16. Phase shifter design based on reconfigurable defected microstrip. Multiband, frequency reconfigurable, and metamaterial. Sep 01, 2010 in this letter, a novel reconfigurable microstrip antenna with polarization diversity is proposed. Reconfigurable stacked microstrip patch antenna for multi. A lowprofile frequency reconfigurable gridslotted patch. A novel frequencyreconfigurable patch antenna using lowloss transformer oil abstract.
Ideally, a reconfigurable antenna should be able to alter its operating frequency, impedance bandwidth, radiation pattern, and polarization to accommodate the operating needs. Budimir 2 1wireless network and communication centre wncc, school of engineering and design, brunel university, west london. The percentage bandwidth of the rectangular patch microstrip antenna in terms of patch dimensions and substrates parameters is given as follows. A design of reconfigurable antenna using novel dgs with pin diode for reducing adverse effects of co site interference and jamming 1shilpam saxena, 2madhur deo upadhayay and 3raghavendra sharma abstract in this paper a new defected ground structure dgs. Dec 01, 2015 the antenna bandwidth was expanded by utilizing the coupling effect between the notched patch and the resonant aperture for dualband rfid reader antenna 155 mm x 230 mm in size 16. By using complementary rhombus resonator crr, a smallsize and lowprofile microstrip patch antenna mpa with broad bandwidth has been proposed.
A novel design approach and simulation of frequency. Parametric studies were conducted to illustrate the working principle of the proposed antenna. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. Design of mems reconfigurable eshaped patch antenna design. Frequency reconfigurable patch antenna for l band applications. Mar 28, 2018 this paper presents the design, analysis, simulation of a novel radiofrequency micro electromechanical system rf mems switch on the frequency reconfigurable antenna application. Design and analysis of compact multiband microstrip patch antennas and a. This concept is implemented to design a novel reconfigurable antenna with both frequency and polarization diversities. In the on state, the antenna operates as a dipoletraveling antenna and covers 30400 mhz. As shown in the schema below, high bandwidth cannot be reached with both small surface and small volume. A square patch of side a is printed on rt duroid substrate. A novel reconfigurable microstrip slot antenna with capability of switchable frequency notched bands for ultrawideband uwb applications is presented. In 7, bahram et al have used the siw antenna technologies with the rfmems switch in order to obtain the reconfigurable antenna by optimising the radiation pattern.
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