Publications by Santiago Capdevila Cascante

Dual-Band Circularly Polarized Transmitarray Antenna for Satellite Communications at (20 to 30) GHz

Juan Ramon Mosig, Hamed Hasani, Joana Rita Alves dos Santos Silva, Maria Garcia Vigueras, Santiago Capdevila Cascante

A novel dual-band polarization-independent transmitarray is introduced in this paper for communication systems in Ka-band. Thanks to its unit-cell topology, the transmitarray antenna demonstrates almost complete independent performance at two design freque ...

2019

Four-Port Broadband Orthomode Transducer Enabling Arbitrary Interelement Spacing

Juan Ramon Mosig, Anja Skrivervik, Emile Jacques de Rijk, Tomislav Debogovic, Maria Garcia Vigueras, Santiago Capdevila Cascante, Esteban Menargues Gomez

This paper reports a novel methodology to design broadband orthomode transducers with two arbitrarily spaced ports carrying orthogonal linear polarizations. The component is based on a combination of two Boifot junctions through a series of power dividers ...

Institute of Electrical and Electronics Engineers2018

Modulated scattering technique in the terahertz domain enabled by current actuated vanadium dioxide switches

Juan Ramon Mosig, Anja Skrivervik, Mihai Adrian Ionescu, Wolfgang Amadeus Vitale, Michele Tamagnone, Santiago Capdevila Cascante

The modulated scattering technique is based on the use of reconfigurable electromagnetic scatterers, structures able to scatter and modulate an impinging electromagnetic field in function of a control signal. The modulated scattering technique is used in a ...

Nature Research2017

Polymer-Based Metal Coated Additive Manufactured V- and W-band Antenna Feed Chain Components

Juan Ramon Mosig, Emile Jacques de Rijk, Tomislav Debogovic, Santiago Capdevila Cascante, Esteban Menargues Gomez

In this paper an additive manufactured (AM) W-band monolithic feed chain is presented. The feed chain, which consists of a corrugated horn antenna and a turnstile orthomode transducer (OMT), operates over the entire W-band (75-110 GHz) and fulfills typical ...

IEEE2017

Tri-Band, Polarization-Independent Reflectarray at Terahertz Frequencies: Design, Fabrication, and Measurement

Juan Ramon Mosig, Anja Skrivervik, Julien Perruisseau-Carrier, Mihai Adrian Ionescu, Clara-Fausta Moldovan, Hamed Hasani, Pietro Maoddi, Michele Tamagnone, Santiago Capdevila Cascante

In this paper, two THz reflectarray surfaces have been designed and fabricated in order to deflect a plane wave with any polarization and with a specific incident angle to three different specific directions each at distinct three frequencies of 0.7, 1.0 a ...

Ieee-Inst Electrical Electronics Engineers Inc2016

Design, Fabrication and Characterization of Terahertz Reflectarrays Based on a Silicon Substrate

Juan Ramon Mosig, Anja Skrivervik, Mihai Adrian Ionescu, Clara-Fausta Moldovan, Hamed Hasani, Michele Tamagnone, Santiago Capdevila Cascante

2015

Volume Integral Equation Formulation for Medical Applications

Juan Ramon Mosig, Michael Mattes, Mina Bjelogrlic, Ioannis Koufogiannis, Santiago Capdevila Cascante

In recent years, there is a considerable and growing interest in developing fast integral equation methods for solving Maxwell’s equations. Volume integral equations are a versatile technique to model inhomogeneous scattering objects. Numerical tests show ...

2015

The Orbital Angular Momentum (OAM) Multiplexing Controversy: OAM as a subset of MIMO

Juan Ramon Mosig, Julien Perruisseau-Carrier, Michele Tamagnone, Joana Rita Alves dos Santos Silva, Santiago Capdevila Cascante

Recently the orbital angular momentum (OAM) multiplexing scheme has been proposed to increase supposedly without limit the channel capacity between a transmitter and a receiver nodes communicating in line of sight. A controversy arose about the far-field e ...

2015

Performance evaluation of novel technologies for terahertz reflectarrays

Juan Ramon Mosig, Anja Skrivervik, Julien Perruisseau-Carrier, Mihai Adrian Ionescu, Clara-Fausta Moldovan, Wolfgang Amadeus Vitale, Hamed Hasani, Michele Tamagnone, Pietro Romano, Santiago Capdevila Cascante

2015

Evaluation of graphene for terahertz reflectarray antennas

Juan Ramon Mosig, Anja Skrivervik, Mihai Adrian Ionescu, Clara-Fausta Moldovan, Hamed Hasani, Michele Tamagnone, Santiago Capdevila Cascante

2015

Stretchable and Transparent THz Reflectarrays Based on PDMS

Juan Ramon Mosig, Samuel Rosset, Herbert Shea, Michele Tamagnone, Pietro Romano, Santiago Capdevila Cascante

2015

Self-biased reconfigurable graphene stacks for terahertz plasmonics

Julien Perruisseau-Carrier, Mihai Adrian Ionescu, Arnaud Magrez, Clara-Fausta Moldovan, Laurent Syavoch Bernard, Santiago Capdevila Cascante

The gate-controllable complex conductivity of graphene offers unprecedented opportunities for reconfigurable plasmonics at terahertz and mid-infrared frequencies. However, the requirement of a gating electrode close to graphene and the single 'control knob ...

Nature Publishing Group2015

Increased dynamic range for RFID EM-field measurements

Santiago Capdevila Cascante

This paper presents a new methodology to measure the electromagnetic (EM) field using RFID tags, overcoming the limitations in dynamic range arisen by the conventional excitation of RFID tags. The methodology consists in the use of two different signals wh ...

2014