As a unique group of advanced artificial materials, metamaterials have found many
interesting applications in various devices due to the ability to control electromagnetic fields …

We present a compact, magnetically dispersive engineered surface for resonant inductive
wireless power transfer (WPT) that significantly enhances the performance of an inductive …

Breath rate is an important vital sign for monitoring the well-being and detecting underlying
illnesses related to the respiratory system. The spirometer is widely used for evaluating the …

In this paper, we present a general equivalent-circuit interpretation of finite magnetic
metasurfaces interacting with an arbitrary arrangement of RF coils operating in near-field …

In this letter, we develop an accurate and effective analytical framework to arbitrarily
manipulate the frequency response of magnetic metasurfaces. In particular, we demonstrate …

In this article, we demonstrate the near electric field reduction ability of spiral resonators
arrays (SRAs) in resonant inductive wireless power transfer (WPT) applications. In particular …

In this article, we introduce a general analytical procedure to unambiguously characterize a
metasurface through its lumped circuital equivalent in resonant inductive Wireless Power …

A distance sensor based on a spiral resonator (SR) label printed on a dielectric substrate
and remotely interrogated through a small loop antenna acting as reader is presented. The …

Microwave sensors are typically characterized using a vector network analyzer (VNA) that
measures the scattering parameters of the device under test (DUT) over a wide frequency …

In this study, a novel microwave sensing system, consisting of a microstrip self-resonant
spiral coil inductively coupled to an external concentric planar probe loop, is presented and …