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 10 of 10 for “"Planar antennas"”.
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Design and Development of Planar Antennas and Dielectric Devices for use at W Band Frequencies
… examined in this thesis is the development of planar antennas for observations at W band frequencies. A large portion of this analysis is based on the specific development of devices as part of an ESA research package entitled “New Technology High Efficiency Horn Antennas for CMB Experiments …
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Electromagnetic Exposure In A Phantom In the Near and Far Fields of Wire and Planar Antennas
… (EM) exposure from wireless devices and antennas. The metric that quantifies the exposure level is called the Specific Absorption Rate (SAR). Wireless devices must satisfy the regulatory standards before being marketed. In the past, researchers have primarily focused on investigating the …
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Statistical Electron Microscopy, Rheometric Studies of Carbon Nanotube Solutions in Chlorosulfonic Acid and Characterization of Wire, Planar Antennas Manufactured from Macroscopic Carbon Nanotube Materials
… and liquid crystalline phase. Finally, wire and planar antennas manufactured from fiber spinning and shear-coating of these CNT solutions are designed and their performance is shown to match that of equivalent copper antennas at frequencies suited for wireless communication.
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Analysis and design of planar slot antennas for RFID applications using characteristic mode theory
… band. Most systems in the UHF band make use of planar antennas with good radiation characteristics to achieve electromagnetic coupling between the tag and the reader. Thin form factor, placement-insensitivity, small size and good radiation characteristics are essential qualities of planar RFID …
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Application of metamaterial structures in the design, analysis and prototyping of planar : Antennas aplicación de estructuras metamateriales en el diseño, análisis y y prototipado de antenas planas
… in the design, analysis and prototyping of planar antennas", we want to continue with the line of investigation of planar antennas where the Radiation Group from the Technical University of Madrid has broad experience. The experience acquired with the design and analysis of planar antennas …
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Pattern reconfigurable metamaterial antenna for 5G base station network
… and integrated with the fifth-generation (5G) planar antennas at two different frequency bands i.e. millimetre-wave (MMW) band and sub-6 GHz band for beam deflection applications. The modified double square ring resonator (DSRR) and contiguous squares resonator (CSR) structures are investigated …
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Polarization behaviour of on-body communication channels at 2.45 GHz
… the need to investigate to the behaviour of antennas and wave propagation on the body in depth. Knowledge and understanding and of the on-body channel can lead to the design of efficient antennas and systems for wearable devices. The objective of this work is to identify the propagation …
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Room-Temperature Terahertz Detection Based on Graphene and Plasmonic Antenna Arrays
… The first design is based on an array of planar antennas arranged in series and shorted by graphene squares. Highly efficient photodetection can be achieved by using the metallic antenna to simultaneously improve both light absorption, as resonant elements, and photocarrier collection, as …
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Contribution to the analysis and design of transmitarray lenses = Contribución al análisis de lentes tipo transmitarray
… aims to be continuation of the research line in antennas and radiating devices, with special interest in the area of reconfigurable antennas, in the Radiation Group (Grupo de Radiaci´on, GR) of the department of Signals, Systems and Radiocommunications (Se˜nales, Sistemas y Radiocomunicaciones, …
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Balanced antennas for mobile handset applications. Simulation and Measurement of Balanced Antennas for Mobile Handsets, investigating Specific Absorption Rate when operated near the human body, and a Coplanar Waveguide alternative to the Balanced Feed.
… are to investigate and design low profile antennas for mobile handsets applications using the balanced concept. These antennas are considered to cover a wide range of wireless standards such as: DCS (1710¿1880 MHz), PCS (1850¿1990 MHz), UMTS (1920¿2170 MHz), WLAN (2400¿2500 MHz and 5000 ¿ …