The proposed antenna is designed for kuk and ka satellite applications. 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. In large phased arrays, reconfigurable antennas could be used to provide additional capabilities that may result in wider instantaneous frequency bandwidths, more extensive scan volumes, and radiation patterns with more desirable side lobe distributions. A novel radiation pattern and frequency reconfigurable microstrip antenna is introduced in this paper. Aperturecoupled frequency and patterns reconfigurable microstrip stacked array antenna. Design of an aperturecoupled frequencyreconfigurable. A novel design approach and simulation of frequency. The antenna consists of a microstrip patch and a slot in the ground. A frequency reconfigurable antenna array is presented. Introduction microstrip patch antenna arrays are currently used in satel. The proposed design of frequency reconfigurable circular patch antenna is simulated on em simulation software. The antenna is potentially suitable for cognitive radio application. A wideband slot antenna with frequency and pattern reconfigurable characteristics for tdlte 3. A novel reconfigurable microstripfed patch antenna with polarization agility in either of two bands is proposed in this communication.
This paper presents the frequency reconfigurable patch antenna array based on tunable liquid crystal and the comparison of tuning range with four liquid crystal lc substrates namely bl037, bl006, e7 and gt324002. Four pin diodes are soldered on the rectangular loops. 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. A novel reconfigurable patch antenna for frequency diversity is proposed by reconfiguring its geometry using tree rectangular tapes that are connected to the patch via six rf mems switches. It consists of six symmetrically reconfigurable radiating elements and six. The antenna design implements a new concept of the frequency reconfigurability methods applying in an aperturecoupled technique. A gridslotted patch with two tunable varactors is placed on the top layer, a microstrip line is placed in the middle of two. In, a reconfigurable patch array antenna surrounded by plasma tubes has been presented, and the beamwidth of radiation pattern can be changed by switching on or off the fluorescent lamps. A comparitive study of four different shaped frequency. The antenna consists of two stacked substrates and three metal layers.
This paper presents a novel radiation pattern reconfigurable antenna using a central circular patch and four parasitic patches. Design of frequency and patternreconfigurable wideband. Log periodic antennas have multiple elements, which resonate in a log periodic fashion. A novel reconfigurable compact patch array antenna for directional and broadside application is proposed. In this paper, we present a new multiband patch antenna array structure. By controlling pin diode switches, high frequency array with four dipole. In this paper, a novel pattern reconfigurable microstrip parasitic array is proposed, which is similar to the microstrip yagi antenna. The configuration of the antenna array is in the form of a set of dollarsymbol, fed by a microstrip line. The reconfiguration performance is realized to be frequency hopping by inserting. Directional and bidirectional patterns are produced by the patch and slot, respectively. The array consists of eight arms with two different feed networks. 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.
The novel design utilizes two resonance modes of a microstrip antenna with shorting vias at. If array antenna and transmission lines are etched on the same layer. To overcome this, we propose a novel wideband log periodic patch array with a capability to switch into a desired narrow band mode. The antenna consists of two symmetric slots that are fed by a forkshaped microstrip line. For the new reconfigurable antenna array, the beam pattern selectivity can be obtained by utilizing a switchable feeding network and the. A novel design of frequency reconfigurable microstrip array antenna frmaa using aperture coupler feeding technique is presented. In this study, a simple design of a fourelement circularly polarised dual frequency reconfigurable microstrip patch antenna array for millimetrewave applications is proposed. A lowprofile frequency reconfigurable gridslotted patch. Frequency reconfigurable microstrip circular patch antenna. In this paper, an electronically controlled plasma reflector antenna array is proposed in term of yagi antenna. In contrast with conventional antennas that can be operated at one frequency in a single antenna, this frmaa is capable to. The antenna uses pin diodes for frequency reconfiguration.
Comparative analysis of reconfigurable patch antenna array. 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. Frequency reconfiguration can be achieved by using a simple and compact triangular patch. Using this property, a frequency reconfigurable log periodic antenna is. Such antennas can be used in mimo lte and wlan applications.
Operating at 5 ghz, the antenna consists of a slotted substrate integrated waveguide and 54 electrically small patches. Both the conventional and reconfigurable antennas are designed to operate at 2. Novel onwafer radiation pattern measurement technique. Reconfigurable antennas synthesis lectures on antennas.
Ojaroudia novel design of reconfigurable slot antenna with switchable band notch and multiresonance. Reconfigurable antenna array has received a lot of attention in presentday wireless communication systems. Conclusions a novel frequency reconfigurable patch antenna with integrated mems actuators is presented for the first time. Reconfigurable microstrip patch antenna for frequency. This antenna is designed on a thin substrate for the application of conformal phased antenna.
The simulated results indicate that the antenna is capable of shifting i. A novel reconfigurable microstrip fractal uwb antenna with six variable rejection frequency bands volume 12 issue 2 nasrin nemati, mohammad bemani. The gain and directivity of frequency reconfigurable antennas can be improved by using arrays of such elements. Frequency reconfigurability is achieved by connecting an additional small patch to the main patch through a pin diode. A novel polarization reconfigurable circularly polarized. Truncated rhombic microstrip patch array antenna with. Antennas research electromagnetics research group emrg. This paper investigates a novel structure of a reconfigurable microstrip antenna integrated with the aperture coupling technique which can reduce spurious radiation pattern with stacked patch in order to enhance the gain and bandwidth performance. The three patches fed by inset feed line technique are connected with a single transmission line by a logperiodic array. As a result of this study, two kinds of novel reconfigurable patch antennas have been designed and validated at the expected frequency bands. The reconfigurable patch antenna operates at the frequency 4.
A novel planar parasitic array antenna with reconfigurability in both frequency band and radiation pattern is proposed. Frequency reconfigurable triangular microstrip patch. A novel fixed frequency beamscanning leakywave antenna lwa based on a period reconfigurable structure is presented. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. Novel frequency reconfigurable slotted patch antenna.
Multiband, frequency reconfigurable, and metamaterial. A novel frequency reconfigurable bowtie antenna array for bluetooth, worldwide interoperability for microwave access wimax and wireless local area network wlan applications is presented. Aperturecoupled frequency and patterns reconfigurable. A novel reconfigurable microstrip patch antenna with frequency and polarization diversities. This orientation distributes the surface currents in different ways resulting in change of its resonance frequency. Upon toggling the switch between on and off states, the antenna can be reconfigured 47. This paper gives a novel frequency reconfigurable coaxial fed triangular shaped patch antenna that operates at different frequency bands 2. The proposed antenna is composed of two electromagnetically coupled patches. The main patch of this antenna has two modified cshaped gaps. Wideband frequency reconfigurable antenna array request pdf.
A novel dualband 3860 ghz patch antenna for 5g mobile. For the new reconfigurable antenna array, the beam pattern selectivity can be obtained. The simulated results indicate that the antenna is capable of. A novel frequency reconfigurable slotted patch antenna structure is presented here. A low profile frequency and pattern reconfigurable antenna. A novel pattern and frequency reconfigurable microstrip parasitic array by q. A novel reconfigurable radiating plasma antenna array. The measured results verify the reconfigurable characteristics of the antenna and demonstrate that it is a good candidate for. Reconfigurable antennas differ from tunable antennas as they modify behavior within a discrete, and not continuous, range and tend to uses switches. A periodreconfigurable leakywave antenna with fixed. Novel frequency reconfigurable microstrip patch antenna. The relation between dimensions and resonant frequency in circular patch antenna at initial stage.
Novel frequency reconfigurable microstrip patch antenna based on a square slot for wireless devices. The major objective of this study was to design, fabricate and test two kinds of novel reconfigurable antennas. For the new reconfigurable antenna array, the beam pattern selectivity can be obtained by utilizing a switchable feeding network and the structure of the truncated corners. The sequentially rotated seriesparallel stub approach is employed in the feeding network design to. Novel onwafer radiation pattern measurement technique for mems actuator based reconfigurable patch antennas nasatm2002211816 october 2002 national aeronautics and space administration glenn research center prepared for the 24th annual antenna measurement techniques association meeting and symposium.
A frequency and pattern reconfigurable antenna based on a centershorted microstrip patch is presented. A seriesfed microstrip patch array with interconnecting. A comparative study is presented using rectangular, square, triangular and circular patch elements. A compact dualfrequency microstrip patch antenna with novel design is proposed for 5g mobile handsets to combine complicated radiation mechanisms for dualband operation. A reconfigurable wimax antenna for directional and. Two pin diodes are loaded in the slots to produce two different frequency bands. Index terms antenna array, microstrip patch antenna, microstrip patch slot antenna, pin diode. The antenna is composed of a pair of rectangular loops and two parasitic rectangular loops.
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. A novel reconfigurable microstrip patch antenna with. Each patch element is etched with two dumbbellshaped slots, and its operating state can be flexibly controlled by the biasing of the pin diode. Reconfigurable microstrip patch slot antenna array. A microfluidically frequency reconfigurable microstrip patch antenna and array are proposed in this paper. A novel reconfigurable microstrip fractal uwb antenna with. The array characteristics will be presented at the symposium. A novel pattern reconfigurable antenna array for diversity.
Reconfigurable array antenna using microelectromechanical. As an example or research done in this area from our group, a reconfigurable patch antenna array is shown below 1. 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. This patch can be dynamically reconfigured to operate at frequencies separated by about 1. A novel frequency reconfigurable slot antenna using metasurface. Microfluidically frequencyreconfigurable microstrip patch. A novel polarization reconfigurable circularly polarized cp antenna is proposed in this paper. Design of a simple circularly polarised dualfrequency. By changing the states of the pin diodes, the operation of the rectangular loops can change between the left handed circular polarization lhcp and the.
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