Concept

Aperture (antenna)

Related publications (208)

X-Band reflectarray antenna with switching-beam using PIN diodes and gathered elements

An electronically switching-beam reflectarray antenna to be used in X-band has been designed, manufactured and tested, using PIN diodes as switching device. The antenna has 244 elements arranged in a circular aperture. With the aim of saving electronic dev ...

Institute of Electrical and Electronics Engineers2012

Design and analysis of planar UHF wearable antenna

Anja Skrivervik, Jovanche Trajkovikj

Slotted PIFA on the textile substrate suitable for body-centric applications in the UHF band is proposed. The influence of slot in the ground plane on the antenna parameters is theoretically investigated using simplified model of human body. © 2012 IEEE. ...

2012

MIMO transmission using a single RF source: theory and antenna design

Julien Perruisseau-Carrier

An approach for transmitting multiple signals using a single switched parasitic antenna (SPA) has been recently reported. The idea there is to map the signals to be transmitted onto a set of basis functions that serve as “virtual antennas” in the beamspace ...

Institute of Electrical and Electronics Engineers2012

Enhanced second-harmonic generation from double resonant plasmonic antennae

Olivier Martin, Andrea Lovera, Krishnan Thyagarajan, Simon Rivier

We present a novel plasmonic antenna geometry - the double resonant antenna (DRA) - that is optimized for second-harmonic generation (SHG). This antenna is based on two gaps coupled to each other so that a resonance at the fundamental and at the doubled fr ...

2012

Time-Domain Generalized Telegrapher's Equations for the Electromagnetic Field Coupling to Finite Length Wires Above a Lossy Ground

Abdolhamid Shoory

In this paper, a time-domain variant of the generalized telegrapher's equations for transient electromagnetic field coupling to a finite-length wire above a lossy half-space is derived. The approach is fully based on the thin-wire antenna theory. The lossy ...

2012

Electromagnetic Environment in the Vicinity of a Tall Tower Struck by Lightning—A Review—

In this paper, an overview of recent theoretical investigations and experimental characterization of the electromagnetic fields in the vicinity of a tower struck by lightning is presented. The presence of an elevated strike object has been included in two ...

2012

Plasma Isotopic Effect on the Damping Rate of Toroidal Alfven Eigenmodes with Intermediate Toroidal Mode Numbers

Ambrogio Fasoli, Duccio Testa, Patrick Blanchard, Theodoros Panis

This paper reports on the results of recent experiments performed on the JET tokamak on toroidal Alfvén eigenmodes (TAEs) with toroidal mode number (n) in the range up to |n|=7. The stability properties of these medium-nTAEs are investigated experimentally ...

2012

System Fidelity Factor: a new method for comparing UWB antennas

Anja Skrivervik, Jean-François Zürcher, Gabriela Quintero Diaz De Leon

The main purpose of the System Fidelity Factor (SFF) is to incorporate frequency and time domain characteristics of an antenna system into a comparison method for ultrawideband (UWB) antennas. The SFF is an interesting tool because both simulations and mea ...

Institute of Electrical and Electronics Engineers2011

Scalable conformal array for multi-gigabit body centric wireless communication

Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia

In this work a conceptual design of a conformal antenna array is presented for a millimeter-wave antenna system, optimized for low-cost mass production in PCB technology. The conformal array is constituted by four cube faces with two antennas realized on e ...

2011

A Compact Single-Layer Dual-Band Microstrip Antenna for Satellite Applications

Seyyed Hussein Seyyed Esfahlani

In this letter, a compact single-layer, single-feed, dual-frequency microstrip antenna with a high frequency ratio is proposed. This antenna has a broadside and symmetrical radiation patterns suitable for space-borne applications. The prototype was fabrica ...

Institute of Electrical and Electronics Engineers2011

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