"Impedance matching"

Estimation of Small Antenna Performance Using a Machine Learning Approach

This paper presents an approach based on Machine Learning (ML) to estimate the performance of small antennas in practical applications. As a proof of concept, the case of printed antennas integrated into compact terminals, such as for Internet of …

Flexible Reconfigurable Antenna Robust to Folding in Wearable Applications

In this paper, a flexible reconfigurable antenna suitable for wearable applications is presented. Thanks to the reconfiguration mechanism, the antenna is robust in terms of impedance matching to the folding of the structure.

Design of a Multiband LTE MIMO Antenna System Integrated in its Real Environment

This paper presents a multiband MIMO antenna system with four accesses, with very good performance despite the complex environment that surrounds it. This environment consists of a thick plastic radome protecting the antenna and an aluminum metallic …

Energy efficient reconfigurable antenna for ultra-low power IoT devices

This paper presents a very low consuming re-configurable antenna suitable for ultra-low power internet-of-things (IoT) devices. Thanks to the use of a Digital Tunable Capacitor (DTC), the antenna can be reconfigured to obtain good impedance matching …

Differential pattern-reconfigurable antenna prototype for efficient wireless sensor networks

The prototype of a differential pattern reconfigurable antenna suitable for efficient wireless sensor networks is presented. The measurement of the prototype as well as the integration with the reconfiguration control system is discussed. Numerical …

Use of ultra-narrow band miniature antennas for internet-of-things applications

The feasibility of using ultra-narrow band (UNB) antennas for internet-of-things applications is discussed. An analysis aimed at evaluating the antenna miniaturisation limits when there are almost no bandwidth requirements is performed. Both …

Simple antenna structure enabling the simultaneous excitation of two different polarisation and radiation modes

A simple antenna structure able to simultaneously generate two different polarisation and radiation modes is proposed. In addition to a good impedance matching all over multiple bands, antennas based on the proposed geometry can exhibit a linearly …

Synthesis of miniature pattern-reconfigurable antennas for smart wireless sensor nodes

This paper presents an approach for the synthesis of pattern-reconfigurable antenna suitable for integration into smart wireless sensor nodes. As a proof-of-concept, a simple antenna configuration capable of steering the radiation main beam towards …

Design of light and low-profile antennas for vehicular applications

In this paper, an approach for the design of antennas suitable for vehicular applications is presented. The resulting solutions are light, low-profile and they exhibit good impedance match and omnidirectional radiation pattern over the band of …

Compact low-profile omnidirectional surface wave antenna for UMTS applications

This paper presents a compact low-profile surface wave antenna for UMTS applications. It shows good impedance match and dipole-like omnidirectional radiation pattern over the band of interest. Numerical and experimental results are reported to …