Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Parasitic array"”.
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Controlling coupling in an electrically steerable parasitic array
… ESPARs have often superimposed multiple antenna arrays, each scaled for a different frequency band. This often results in large, cluttered, complicated designs. To accommodate multi-band operation the radiators can be loaded with reactive elements. To preserve the array properties across bands, a …
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Investigation of a cylindrically conformed reconfigurable microstrip parasitic array
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
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Miniaturized, Directional Antennas For Wireless Power Transfer
… an electrically small, circular polarized parasitic array antenna, and a miniaturized circularly polarized 2x2 array antenna, are introduced for possible use as wireless power reception antennas. Each antenna utilizes top-loading and multiple folding to achieve a compact geometry.</p>
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Polarization behaviour of on-body communication channels at 2.45 GHz
… lead to the design of a novel surface wave parasitic array. This new antenna is directive and can increase the path gain by almost 10 dB compared to other planar antennas. In addition, the effect of the polarization of the antenna on channel path gain is studied and channel cross …
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Design and optimization of dielectric resonator antenna arrays based on substrate integrated waveguide technology for millimeter-wave applications
… of dielectric resonator antenna (DRA) arrays based on substrate integrated waveguide (SIW) technology, which has been proven to be promising for MMW applications. The objectives include both the development of highly efficient computer aided design and optimization techniques, and the …
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Modeling and design of near-field antennas with periodic structures
In this dissertation, the one- and two-dimensional periodic structures are modelled and adopted in the design of near-field antennas. First, the discontinuous Galerkin time-domain (DGTD) method is applied to model the scattering from periodic structures. The modelling of dispersive media is …