Exploració per tema "Microstrip antennas"
Ara es mostren els items 1-15 de 15
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Antenna reconfigurability based on a novel parasitic pixel layer
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialA novel reconfiguration method based in the use of pixel surfaces as parasitic elements is presented. This concept can be used to provide reconfigurability to a wide variety of non-reconfigurable antennas without requiring ... -
Design of a dual-band circularly polarized antenna for a Galileo Demonstrator
(Universitat Politècnica de Catalunya, 2009-02)
Projecte/Treball Final de Carrera
Accés obertThis Master Thesis presents the design of a novel antenna geometry for Galileo satellite navigation systems. This radiator is intended to improve the performance of an already designed antenna for the GALANT DLR’s internal ... -
Dual-band Butler matrix for WLAN systems
(Institute of Electrical and Electronics Engineers, 2005)
Text en actes de congrés
Accés obertThis paper shows the design of a dual-band Butler matrix aimed to cover the bands corresponding to the standards IEEE802.11a/b, with particular interest in WLAN systems, at the 2.4 GHz and 5 GHz bands. Measurements of the ... -
Dual-band Sierpinski fractal monopole antenna
(Institute of Electrical and Electronics Engineers (IEEE), 2000)
Text en actes de congrés
Accés obertA new top-loaded reduced-sized dual-band (1.9 GHz and 3.5 GHz) monopole antenna for wireless communications is presented. The antenna provides better than -15 dB input return loss and keeps the same radiation pattern over ... -
Efficient Rectenna Design for Ambient Microwave Energy Recycling
(Universitat Politècnica de Catalunya, 2009-07-07)
Projecte/Treball Final de Carrera
Accés obertThe work focuses on designing, measuring and testing an antenna and recti er circuit (RECTENNA) optimized for incoming signals of low power density. The rectenna is used to harvest electric energy from the RF signals ... -
Enhancing the performance of handset antennas by means of groundplane design
(Institute of Electrical and Electronics Engineers (IEEE), 2006)
Text en actes de congrés
Accés restringit per política de l'editorial -
High directivity modes in the koch island fractal patch antenna
(Institute of Electrical and Electronics Engineers (IEEE), 2000)
Text en actes de congrés
Accés obertThe article shows that a patch antenna with fractal boundary exhibits, at a frequencies above the fundamental mode, localized modes. These modes can have broadside directive patterns. As an example of this phenomenon ... -
Impact of the antenna technology and the antenna parameters on the performance of MIMO systems
(Institute of Electrical and Electronics Engineers (IEEE), 2003)
Text en actes de congrés
Accés restringit per política de l'editorial -
Integrated graphene patch antenna for communications at THz frequencies
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés obertGraphene is an attractive material for communications in the THz range due to its ability to support surface plasmon polaritons. This enables a graphene antenna to be smaller in size than its metallic counterpart. In ... -
Microstrip fractal-shaped antennas: a review
(Institute of Electrical and Electronics Engineers (IEEE), 2007)
Text en actes de congrés
Accés restringit per política de l'editorialA review of electromagnetic features of microstrip antennas using fractal geometries is presented divided in four main areas: multi-frequency antennas, combination of multi- frequency with broadband techniques, high-directivity ... -
Miniature Wideband stacked microstrip patch antenna based on the sierpinski fractal geometry
(Institute of Electrical and Electronics Engineers (IEEE), 2000)
Text en actes de congrés
Accés obertThe main interest in the design of a miniature microstrip patch antenna (MPA) is its small size in conjunction with the well-known advantages of a MPA (cost, profile, weight). However there is a big constraint on the ... -
Multiband Sierpinskl fractal patch antenna
(Institute of Electrical and Electronics Engineers (IEEE), 2000)
Text en actes de congrés
Accés obertThe multiband behavior of the Sierpinski patch antenna is described, and a new technique to improve the multiband behavior from the point of view of the radiation patterns is introduced. The technique suppresses the effects ... -
New methods for determining the complex permittivity of different glucose concentrations by waveguide and antenna measurements at v-band
(Universitat Politècnica de Catalunya / King's College (University of London), 2013-09-10)
Projecte/Treball Final de Carrera
Accés obert
Realitzat a/amb: King's College London[ANGLÈS] Diabetes is a metabolic disease that affects millions of people in the world. To control the status of this disease, diabetic patients have to measure continuously their glucose levels during all day. Nowadays, ... -
Novel metamaterial filters using hts materials for radio astronomy (implementation in Microstrip Technology)
(Universitat Politècnica de Catalunya, 2009-02)
Projecte/Treball Final de Carrera
Accés obertEl objetivo principal de este projecto es diseñar un filtro que permita eliminar la banda de telefonía móvil IMT-2000, dentro de una banda de paso de 0 a 1.8 GHz. Esta banda permite estudiar diferentes líneas espectrales ... -
Self-similar current distribution on fractal Sierpinski antenna verified with infrared thermograms
(Institute of Electrical and Electronics Engineers (IEEE), 1999)
Text en actes de congrés
Accés obertExperimental verification of the fractal Sierpinski antenna surface current distribution is presented. Measured data from an infrared camera agree with numerical data showing a self-similar behavior in the current density ...
