In this chapter, reconfigurable antennas are reviewed for ultra-wideband (UWB) cognitive radio communication applications. The defected microstrip structure (DMS) has been reviewed and integrated into the UWB antennas to form the desired filtering antennas which can filter out unexpected narrowband signal interferences. Then, switches are incorporated into the filtering UWB antennas to Frequency Reconfigurable Antennas Design for Cognitive Radio … Oct 28, 2017 · Abstract. This paper proposes frequency reconfigurable antennas using genetic algorithm, suitable for cognitive radio applications. The optimization is applied to find the slot shape and the switches locations in the ground plane of monopole antennas for adjustment of the bandwidth. Electronically Reconfigurable Uniplanar Antenna With Polarization … Electronically Reconfigurable Uniplanar Antenna With Polarization Diversity for Cognitive Radio Applications Abstract: A uniplanar, polarization diversity antenna with wideband/narrowband (WB/NB) switching capability is presented. The design utilizes an open annular slot with an orthogonal feeding mechanism to achieve polarization diversity (PDF) A Selective Frequency-Reconfigurable Antenna for Cognitive …
The cognitive radio antenna assembly includes two boards, a main board that has an ultra-wideband antenna (uwb) and also serves as a ground plane for the reconfigurable antenna, and an elevated mimo board having two planar inverted-f …
A compact UWB monopole patch antenna with reconfigurable ... The UWB antenna is designed on an FR4 substrate with a thickness of 1.6 mm. The relative permittivity of the substrate is Ɛ r = 4.4 and loss tangent is 0.02. The basic configuration of the antenna consists of an elliptical radiating patch with a slot loaded partial rectangular ground plane. Compact Reconfigurable Antenna with an Omnidirectional ... A compact reconfigurable antenna with an omnidirectional mode and four directional modes is proposed. The antenna has a main radiator and four parasitic elements printed on a dielectric substrate. By changing the status of diodes soldered on the parasitic elements, the proposed antenna can generate ...
Reconfigurable Antennas for UWB Cognitive Radio... |…
This paper proposes frequency reconfigurable antennas using genetic algorithm, suitable for cognitive radio applications. The optimization is applied to find the slot shape and the switches locations in the ground plane of monopole antennas for adjustment of the bandwidth. A Survey on Planar Antenna Designs for Cognitive Radio ... A Survey on Planar Antenna Designs for Cognitive Radio Applications. Authors; ... 2014). A novel optically controlled reconfigurable antenna for cognitive radio systems. In Proceedings of the IEEE antennas ... and implementation of an integrated UWB/reconfigurable-slot antenna for cognitive radio applications. IEEE Antennas and ... A Study of Reconfigurable Multiband Antenna for Wireless ... Frequency Reconfigurable Antenna for Cognitive Radio which is act as a fast switching antenna capable of operating in seven different frequencies in the range of 6.25 to 8.25 GHz[14]. Mohammad M. proposed a Reconfigurable Antenna with Extended U-Slot used as a Switchable Polarization for Wireless Applications. An Integrated Frequency Reconfigurable Antenna for ... 748 S. SHARMA, C. C. TRIPATHI, AN INTEGRATED FREQUENCY RECONFIGURABLE ANTENNA FOR COGNITIVE RADIO … in UWB monopole without much affecting the S11 re-sponse, than this space can be reused to integrate another NB antenna. Therefore, in configuration-II a very thin slit is etched in the UWB antenna, which separates the region
Analysis and Design of a Reconfigurable Antenna for CR Applications
... reconfigurable microstrip patch antennas for cognitive radio applications were ... Slots were introduced in patch and ground plane to enhance the bandwidth.
Abstract. This paper proposes frequency reconfigurable antennas using genetic algorithm, suitable for cognitive radio applications. The optimization is applied to find the slot shape and the switches locations in the ground plane of monopole antennas for adjustment of the bandwidth.
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A Study of Reconfigurable Multiband Antenna for Wireless ... Frequency Reconfigurable Antenna for Cognitive Radio which is act as a fast switching antenna capable of operating in seven different frequencies in the range of 6.25 to 8.25 GHz[14]. Mohammad M. proposed a Reconfigurable Antenna with Extended U-Slot used as a Switchable Polarization for Wireless Applications.