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 “"Antenna Radiation Pattern"”.
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Design and Verification of a LabVIEW Automated Antenna Radiation Pattern Measurement System
… to advance student education in the areas of antennas and wireless communications. An anechoic chamber is a room designed to suppress electromagnetic radiation reflections so that accurate measurement of radio frequency (RF) systems such as wireless radios and antennas can take place. Despite …
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Multiple reflector scanning antennas
Narrow beamwidth antenna systems are important to remote sensing applications and point-to-point communication systems. In many applications the main beam of the antenna radiation pattern must be scannable over a region of space. Scanning by mechanically skewing the entire antenna assembly is …
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Design and theoretical analysis of advanced power based positioning in RF system
… models. In the fourth and fifth paper, a novel antenna radiation-pattern-aware power-based positioning (ARPAP) system and power contour circle fitting (PCCF) algorithm are proposed to address antenna directivity effect on power-based localization. Overall, a complete LoS signal power based …
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Differentially fed active antennas
… benefits of differentially fed balanced transmit antenna in modern communication system. Extensive experimental studies have established the fact that a true differential amplifier feeding a balanced antenna offers higher linearity and lower distortions compared to the single ended feeding …
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Extraction of Input Parameters for the Theory of Radiative Energy Transfer Using Deconvolution.
… are convolution products of the phase function pattern and the receiver antenna radiation patterns, which impacts determination of the RET input parameters. Consequently, in order to achieve more accurate determination of the RET input parameters, the adverse influence caused by receiver antenna …
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A discrete RET Model for Micro- and Millimetre Wave Propagation through Vegetation
… extraction including the effects of the receive antenna radiation pattern is another novel contribution. Further novelty lies in the application of the dRET model to mixed, finite and inhomogeneous vegetation formations. As a result of these refinements and extensions, the dRET propagation model …
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Untersuchung und Realisierung von Mehrtorantennen zur Kanalkapazitätssteigerung von MIMO Systemen in Innenraumszenarien
… In order to overcome this problem, new multiple antenna systems (MIMO: Multiple Output Multiple I nput) are investigated and probably will replace the conventional single antenna systems, which use only one antenna element at the transmit and receive side, respectively. Deploying more antennas at …