Per-Simon Kildal

TL;DR: The ridge gap waveguide as discussed by the authors is a waveguide appearing in the air gap between two parallel metal plates, where one of the plates has a metal texture, and confined local waves follow ridges in the texture whereas they are prohibited from propagating in other directions by metal pins.

TL;DR: In this article, the fundamental characteristics of different wave propagation environments (such as Rayleigh fading, Rice fading, and polarization balance; coherence bandwidth and time delay spread; and fading speed, coherence time and Doppler spread), and relate these characteristics to the Line-Of-Sight (LOS) emulated by good anechoic chambers, and the rich isotropic multipath environment emulating by good reverberation chambers.

TL;DR: A multiple‐input multiple‐output (MIMO) efficiency metric based on the probability of detection (PoD) of data bitstreams is used to improve the design of a self‐grounded dual‐polarized wideband bowtie antenna over an octave bandwidth.

TL;DR: In this article, a comparison between the measured mutual coupling effect on the ergodic channel capacity of a $2 \times 2$ MIMO system in a reverberation chamber and in a suburban outdoor environment (i.e., Rician channel) at Long Term Evolution (LTE) radio band 13.

TL;DR: In this paper, the authors discuss the need for a reference environment for the characterization of small antennas intended to be used in multipath, and the conclusion is that a good choice is the rich isotropic multipath environment as emulated by a well designed reverberation chamber, or possibly by a spherical array of antennas in an anechoic chamber.