Browsing by Subject "Antennas (Electronics)"
Now showing items 1-20 of 307
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100 GHz MST retina for real time near field imaging
(Universitat Politècnica de Catalunya, 2012-06-26)
Master thesis
Open Access[ANGLÈS] For an imaging system, a good compromise is needed between the resolution of the image and the penetration ability of the electromagnetic wave. In order to obtain a good resolution, a high frequency system is ... -
3-D printed UWB microwave bodyscope for biomedical measurements
(2019-02-15)
Article
Open AccessIn this letter, a three-dimensional (3-D) printed compact ultrawideband (UWB) extended gap ridge horn (EGRH) antenna designed to be used for biological measurements of the human body is described. The operational frequency ... -
5G multi-antenna vehicle scattering characterization
(Universitat Politècnica de Catalunya, 2019-06-20)
Master thesis
Open AccessIn today's era of internet, everything is tending to be intelligent enough to be managed by itself. Following the same line, vehicles are more than vehicular machines. They are tending to be autonomously driven, able to ... -
60GHz material characterization and waveguide antenna array design
(Universitat Politècnica de Catalunya, 2009-01-08)
Master thesis (pre-Bologna period)
Open AccessCálculo de la permitividad compleja de materiales usados en PCB y diseño de una agrupación de antenas para la banda de 60GHz. -
A bright single photon source: Strong coupling of a single molecule to a plasmonic nano-antenna cavity
(Universitat Politècnica de Catalunya, 2019-07-23)
Master thesis
Open AccessSingle photon emitters are quantum light sources that can enable a variety of quantum based technologies such as quantum information or quantum random number generation, among others. These single photon emitters can have ... -
A communication-based algorithm to avoid the human body effect on antennas
(Universitat Politècnica de Catalunya, 2011-07-21)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Qing hua da xueEnglish: The aim of this project is to design and implement a simple and reliable system able to minimize the negative effect that users cause on the antenna performance of mobile devices when interacting with these. The ... -
A compact dual-band planar monopole antenna using fractal rings and A Y-shaped feeding transmission line
(De Gruytr, 2018-01-01)
Article
Open AccessThis paper presents a novel design approach of a compact dual-band monopole antenna with an overall size of 18.9x13x1.6mm3. The proposed antenna is composed of a fractal ring shaped patch fed by a Y-shaped transmission ... -
A graphene based plasmonic antenna design for communication in the THz regime
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference lecture
Restricted access - publisher's policyWe show the first THz emission of a graphene based plasmonic antenna structure. Furthermore we present the minimum material requirements for an operational graphene antenna in terms of chemical potential µc and relaxation time t. -
A high-resolution UWB IR superregenerative receiver front end with an SRD quench shaper
(2012-02-03)
Article
Restricted access - publisher's policyWe present a simple receiver front end that makes use of the baseband superregeneration principle to detect ultrawideband (UWB) impulse radio signals. The UWB antenna is directly connected to the core circuit consisting ... -
A Ku band circularly polarized 2×2 microstrip antenna array for remote sensing applications
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyThis paper reports the development of a Circularly Polarized (CP) microstrip patch array working at Ku band and in particular between 16.9-17.2GHz for remote sensing applications. The design is based on a sequential ... -
A linear array design based on non-uniform Chebyshev distribution for high gain low sidelobe level millimetre wave 5G applications
(Universitat Politècnica de Catalunya, 2020-07)
Master thesis
Open AccessAntenna is the front-end element and is a major part of designing a robust communication system. The increased user density and high data rate requirements now a days can be overcome by a wideband antennas capable of having ... -
A low-complexity method for antenna selection in spatial modulation systems
(2013-11-13)
Article
Restricted access - publisher's policyIn this Letter, a low-complexity Euclidean distancebased method for antenna subset selection in Spatial Modulation systems is presented. The proposed method avoids the high complexity of both the optimal exhaustive ... -
A mechanism to electrically enlarge the ground plane of handset antennas: A bandwidth enhancement technique
(2011-07)
Article
Restricted access - publisher's policyThere is a need of developing new techniques for enhancing the bandwidth of handset antennas without increasing the antenna volume in order to incorporate more frequency bands into the cell phones. The technique to enhance ... -
A microstrip array operating in a fracton mode [fractal geometry]
(Institute of Electrical and Electronics Engineers (IEEE), 2003)
Conference report
Restricted access - publisher's policyA high-directivity microstrip array using multilevel elements based on a fractal geometry is theoretically compared with one using a circular patches. Within the same electrical area, the same directivity can be obtained. ... -
A microwave invisibility cloak: the design, simulation, and measurement of a simple and effective frequency-selective surface-based mantle cloak
(2018-06-26)
Article
Open AccessIn recent years, there has been a growing interest in developing invisibility cloaks that can conceal an object. These techniques are often based either on coating a dielectric or conducting object with a homogeneous ... -
A novel approach to MISO interference networks under maximum receive-power regulation
(WSEAS Press, 2018-07-01)
Article
Open AccessAn aggressive frequency reuse is expected within the next years in order to increase the spectral ef¿ciency. Multiuser interference by all in-band transmitters can create a communication bottleneck and, therefore, it is ... -
A procedure to design wide-band electromagnetically-coupled stacked microstrip antennas based on a simple network model
(Institute of Electrical and Electronics Engineers (IEEE), 1999)
Conference report
Restricted access - publisher's policyIt is well known that microstrip patch antennas have a poor bandwidth due to the small spacing between the patch and the ground plane. A stacked patch configuration has been demonstrated experimentally as a feasible solution, ... -
A reconfigurable antenna with beam steering and beamwidth variability for wireless communications
(2018-07-12)
Article
Open AccessA reconfigurable antenna (RA) capable of steering its beam into the hemisphere corresponding to ¿ ¿ {-40°,0°,40°}, Ø ¿ {0°,45°,90°,-45°}, and of changing 3-dB beamwidth, where ¿3dB ¿ (40°,100°), Ø ¿ {45°,90°,-45°} for ... -
A submillimeter wave parabolic reflector by additive manufacturing
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Restricted access - publisher's policyThe manufacturing of prototype of an offset parabolic reflector to operate at 120 GHz is presented. The paper describes the different metallization options to achieve a good performance. -
Acquisition and Tracking algorithms for Phased Array Antenna based systems
(Universitat Politècnica de Catalunya, 2020-09)
Master thesis
Open Access
Covenantee: Airbus Defence and SpaceWith the advent of an increasing number of high-throughput telecommunication satellite constellations in Low Earth Orbit (LEO), tracking performance requirements for User Terminals (UTs) have become more stringent. A way ...
