Pattern Diversity Reconfigurable Antennas
Reconfigurable parasitic antennas for compact mobile terminals in multiuser wireless systems
... array antennas preserve the capability to also perform MIMO ...(ESPAR) antennas have been explored by providing the expansion of the far field pattern in a complete set of orthonormal basis ...
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A Dual Band Frequency and Pattern Reconfigurable Dielectric Resonator Antenna
... reconfiguration is discussed in which the feed acts as an ideal switch. This design operates at two frequencies viz., 3.6 GHz and 5.2 GHz. These frequencies are independently tuned using trimmers. Further, the slot ...
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Reconfigurable antennas and configuration selection methods for MIMO ad hoc networks
... where reconfigurable antennas are employed at both link ends, as well as at either the receiver or ...using reconfigurable antennas in a MIMO ad hoc ...of reconfigurable antenna arrays, ...
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Reconfigurable antennas and link adaptation algorithms for MIMO OFDM wireless systems
... as reconfigurable antennas. These antennas are capable of adaptively modifying their radiation characteristics and thus leverage pattern diversity to affect how the transmitter and ...
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A Wideband Collocated Antennas with Five Reconfigurable Patterns and Low Mutual Coupling
... Abstract—Wideband collocated antennas for multiple input multiple output (MIMO) systems are proposed. The structure is disposed on two substrate layers. On the first top substrate, a disc monopole is etched. The ...
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A Pattern Reconfigurable Antenna for WLAN and WiMAX Systems
... Many pattern reconfigurable antennas have been reported in literature [5–16], such as a corner reflector antenna for single band [6], dual-band [7, 8] and compact structures that can provide different ...
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Planar Bowtie Antenna with a Reconfigurable Radiation Pattern
... of antennas providing diversity functions in operating frequency [1, 2, 6], polarization [3–5] and radiation pattern [1, 5–20] have been ...them, antennas able to modify their radiation ...
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Reconfigurable Microstrip Double Dipole Antennas for Personal Wireless Communications
... configurable antennas are being developed to meet this need ...wideband antennas require complicated filters with stringent requirements to im- prove their out-of-band noise-rejection ...
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A Survey of Different Reconfigurable Antennas for Various Wireless Applications
... frequency, pattern, polarization and radiating elements antenna reconfigurability is ...of reconfigurable antennas are ...polarization, pattern, frequency and frequency reconfigurable ...
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Design of Ultra-wide Band Reconfigurable Micro Strip Antennas for Cognitive Radio Applications
... Polarization diversity can be achieved by modifying the structure of the antenna or feed configuration in the way that the current flows on the ...radiation pattern, if we have both components ...radiation ...
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A Compact Microstrip Patch Antenna with Reconfigurable Feed Network for Polarization Diversity
... reconfigurable antennas have drawn lots of attention due to their ability to improve the performance of the wireless communication ...the antennas in the above references are less than ...radiation ...
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A Flexible Frequency and Pattern Reconfigurable Antenna for Wireless Systems
... and pattern reconfigurable antennas are able to control the resonant frequency band and radiation direction by selecting the radiator through PIN diodes, MEMS, or varactors, which are used to dynamically ...
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Performance analysis of reconfigurable communication system based on diversity and spatial multiplexing
... receive antennas are varied from 1 to 50 and the corresponding capacity is plotted for independent identically distributed channel ...polarized antennas are calculated and the results are shown in figure 6 ...
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A Novel Pattern and Frequency Reconfigurable Microstrip Parasitic Array
... radiation pattern tilts toward the positive x ...radiation pattern tilts toward the negative x ...radiation pattern. As a result, there is a broadside radiation pattern in the ...
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Directional pattern synthesis in circular arrays of directional antennas
... It was shown by Longstaff, Chow and Davies (1) that the far field directional pattern of a continuous circular array in the horizontal plane can be analysed in terms of spatial harmonics[r] ...
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Polarization Diversity UWB Antennas with and Without Notched Bands
... UWB antennas are presented. These antennas have the shape of two overlapped ...presented antennas are polarization diversity antennas with and without dual band reject ...the ...
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MIMO Reconfigurable Antennas for Wi Fi 2 4 GHz Communication
... The dimension of a microstrip patch antenna has a great role in efficient transmission and reception of radio signals. High radiation efficiency of the antenna indicates effective power dissemination in the free space. ...
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Biological diversity of fish communities : pattern and process
... the pattern of abundance; in this they resemble the neutral theory of molecular genetics (Kimura, ...the pattern of species relative abundance in a local community is a result of both the species abundance ...
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Pattern and frequency reconfigurable antenna for wireless applications
... of reconfigurable antenna; these can be frequency, polarization or pattern reconfigurable which play a major role in integrated system with a purpose of using a single multifunctional antenna for ...
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Design of Pattern Reconfigurable Linear Array Antenna for Multi band Application
... Radiation Pattern of Linear array when it excited in iteration 1,iteration 2 and iteration 3 respectively with uniform distribution and it is observed that in the 1 st iteration main beam is at 0 0 ,in the 2 nd ...
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