This paper presents the work carried out to assess the feasibility of miniature directive
antennas. It is based on an analysis of the physical limits of antenna directivity in general …

High-gain antennas are essential hardware devices, powering numerous daily applications,
including distant point-to-point communications, safety radars, and many others. While a …

High impedance surfaces (HISs) have been proposed and used as substrate for dipoles for
realizing low-profile antennas. Here, we show that HISs can be used directly as low-profile …

Harrington has demonstrated a relation which links antenna directivity and size. This
relationship has been calculated considering lossless antennas and represents the antenna …

An electromagnetic bandgap (EBG)‐inspired low‐profile wideband textile antenna is
presented. By partially surrounding a standard textile patch antenna with mushroom EBG …

HISs have recently shown the ability to support leaky waves, and to excite plasmonic and
HIS resonance frequency modes for use as an antenna. In this paper, we analyzed …

High-impedance surfaces (HISs) have been used as artificial magnetic conductors for low-
profile dipole antennas. Usually, the desired operation has been designed using the phase …

This paper presents a fully planar antenna based on a metamaterial consisting of a planar
array of dogbones. The unit element of this high impedance surface (HIS) is composed of a …

The directivity of a metamaterial‐inspired compact (0.145 λ0) monopole antenna was
investigated. The proposed structure is composed of a split‐ring resonator (SRR) parasitic …

En focalisant le rayonnement dans les directions utiles, les antennes directives ouvrent de
nouvelles perspectives pour les applications sans-fil en termes de sélectivité spatiale …