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Showing 1 to 20 of 23 for “"Reconfigurable Antenna"”.
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FPGA controlled reconfigurable antenna
At the present time, the advantages of reconfigurable antennas are numerous but limited by the method of controlling their configuration. This thesis proposes to utilize the advantages of Field Programmable Gate Arrays (FPGAs) to overcome this dilemma. Two experimental antennas are designed. The …
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Active Antenna Bandwidth Control Using Reconfigurable Antenna Elements
Reconfigurable antennas represent a recent innovation in antenna design that changes from classical fixed-form, fixed-function antennas to modifiable structures that can be adapted to fit the requirements of a time varying system. Advances in microwave semiconductor processing technologies have …
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Analysis, design and implementation of front-end reconfigurable antenna systems (FERAS)
The increase in demand on reconfigurable systems and especially for wireless communications applications has stressed the need for smart and agile RF devices that sense and respond to the RF changes in the environment. Many different applications require frequency agility with software control …
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Design and analysis of a frequency reconfigurable antenna for wireless communication at 5 GHz
… AUTHOR'S REQUEST.] In this research, a frequency reconfigurable antenna was simulated and analyzed. The industry standard simulation suits (CST) was used in the design and analysis of the frequency reconfigurable structures. The proposed antenna uses four PIN diodes as connectors between …
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Synthetic aperture radar-based techniques and reconfigurable antenna design for microwave imaging of layered structures
… microwave imaging systems require suitable antennas for signal transmission and data collection. A reconfigurable antenna which its characteristics can be dynamically changed provide significant flexibility in terms of beam-forming, reduction in unwanted noise and multiplicity of use …
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Design, simulation, and analysis of reconfigurable antennas in GHz regime
… research focuses on the design and analysis of a reconfigurable antenna where the radiation pattern and its characteristics are altered in each operating state. Specifically three versions of the reconfigurable antenna have been designed, all made from the same materials. An industry standard …
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A Radiation Reconfigurable Magnetic Line Source Antenna: Modeling, Integration With RF MEMS, and Applications
… presents the work and progress of a radiation reconfigurable microstrip antenna. It has been designed to reconfigure its radiation pattern between broadside and endfire directions. Each configuration operates within an impedance bandwidth common to both states, and the desired radiation …
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Design And Analysis Of Adaptive And Reconfigurable Antennas For Wireless Communication
… a tremendous increase in the number of antennas onboard, on the ground, and in orbital space. This places a burden due to the confined volume and limited weight requirements especially in space applications. The reconfigurable antenna is a promising and exciting new type of antenna, …
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A frequency reconfigurable slot antenna with a conductive microfluidic switching mechanism
Reconfigurable antennas have the potential to provide functionality to radio systems which will make them more robust and allow for much more efficient use of the electromagnetic spectrum when combined with cognitive radio. High power applications, however, cannot benefit from the advances made in …
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Negative-group-delay and Non-foster Electromagnetic Structures
… applications is introduced, a frequency-reconfigurable antenna is presented which provides an excellent compromise among size, frequency tuning range and count of tuning elements. In Chapters 5, a design procedure for replacing the tuning element with a circuit, generating a non-Foster …
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Design and Implementation of System Components for Radio Frequency Based Asset Tracking Devices to Enhance Location Based Services. Study of angle of arrival techniques, effects of mutual coupling, design of an angle of arrival algorithm, design of a novel miniature reconfigurable antenna optimised for wireless communication systems
… is cost effective and efficient for 3, 4, and 5 antenna array elements. This research also considers the shape of the ground plane and its effects on the angle of arrival estimation and in addition it shows how the mutual couplings between the elements effect the overall estimation and how this …
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Development of harmonic suppressed reconfigurable fractal dipole antenna
The development of compact size reconfigurable harmonic suppressed antenna is crucial in today’s wireless communication system. One set of Harmonic Suppressed Antenna (HSA) and its reconfigurable configuration in the form of fractal dipole antenna that is integrated with the stubs and tapered balun …
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Design and analysis of pattern null reconfigurable antennas
… analysis, and measurement of pattern null reconfigurable antennas (NRAs). Unlike conventional pattern reconfigurable antennas, NRAs possess the ability to steer their pattern nulls, yielding interference rejection capabilities. While various NRAs exist, the current state of the art has two …
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Antenna element pattern reconfigurability in adaptive arrays
… the functional benefits of utilizing radiation reconfigurable antennas in an adaptive array setting. The work centers on arrays composed of a small number of widely spaced elements. Such array configurations (1) mitigate the effects of mutual coupling between reconfigurable elements, thereby …
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Bioinspired microvascular self-healing in polymers and composites
… within the network. A prototype, frequency-reconfigurable antenna is fabricated to demonstrate newfound electromagnetic capabilities. VaSC is also employed to create 3D, isolated and interpenetrating microvascular networks in woven fiber-composite laminates to compare in situ mixing …
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Investigation of a reconfigurable GPS antenna for direction finding and nulling applications
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01
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Tunable electrically small antenna for next generation ionospheric heating
… metamaterial inspired electrically small antenna with the capability of frequency reconfiguration is evaluated for potential future use in Transportable Ionospheric Heating. Consisting of a Small Loop Antenna (SLA) inductively coupled to a Capacitively Loaded Loop (CLL) this design …
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