Search results for "Reconfigurable antenna"

showing 3 items of 3 documents

Reconfigurable dualband antenna module with integrated high voltage charge pump and digital analog converter

2014

Integration of a reconfigurable antenna module for handheld applications employing a set of novel technologies is demonstrated. A low profile dualband hybrid dielectric resonator antenna (DRA) based on glass-ceramics and a tunable matching network (TMN) based on ferroelectric varactors with a maximum biasing of 90V form a reconfigurable antenna module. The control of the antenna module is performed by a 120V CMOS high voltage (HV) charge pump with an 8-bit digital analog (D/A) converter generated from a 3.7V battery. Adaptive impedance matching at the lower band of 1.9 GHz is carried out by the TMN when the dualband antenna is exposed to different operation scenarios. Meanwhile, the upper b…

EngineeringReconfigurable antennaDielectric resonator antennaDirectional antennabusiness.industryElectrical engineeringImpedance matchingSlot antennalaw.inventionCMOSlawCharge pumpAntenna (radio)businessThe 8th European Conference on Antennas and Propagation (EuCAP 2014)
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Tunable antenna system for plug&play satellite avionics: Prototyping and test

2014

In the framework of an ESA program, a new architecture for plug&play compact antenna systems in the X band has been investigated and experimentally verified by many prototypes. The proposed antenna system takes inspiration from the LEGO building toys: the basic component of the new architecture is a 2.7cm-cube complex module that integrates a three-dimensional local network and a programmable mechanism based on the bonding-wire technology to select one among three polarization options. Elemental blocks can be augmented by accessories to shape the beam and may be used in array configuration over boards provided with cluster-level beamforming networks. Measurements have been performed for bot…

BeamformingEngineeringReconfigurable antennaantenna satellitebusiness.industryConformal antennaX bandLocal area networkAvionicsSettore ING-INF/01 - ElettronicaSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)law.inventionlawComponent (UML)Electronic engineeringAntenna (radio)businessThe 8th European Conference on Antennas and Propagation (EuCAP 2014)
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Minimization of a rectangular patch using genetic algorithms

2002

In recent years, the miniaturization of antennas have become more and more important, especially in connection with subscriber transceivers for cellular systems. Due to the multiple scattering environments and the almost indefinable operating scenario, the crosspolarization characteristics of the antenna are less important, however its physical size is critical. The attempts to reduce the physical size of the antenna made in the past, used classical methods, such as embedding the antenna in a dielectric medium of a high permittivity, adding a resistive element in series with the antenna, etc., but little effort was invested in simply generating other geometries, which by their intrinsic pro…

Patch antennaEngineeringReconfigurable antennaDirectional antennabusiness.industryConformal antennaAntenna measurementAstrophysics::Instrumentation and Methods for AstrophysicsElectrical engineeringEvolved antennaMicrostripAntenna efficiencylaw.inventionMicrostrip antennaElectrical lengthlawElectronic engineeringAntenna (radio)businessOmnidirectional antennaComputer Science::Information TheoryIEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229)
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