A compact pattern reconfigurable antenna with four radiation patterns is proposed for sub-GHz IoT applications. The antenna has two functional modes; Mode I has three uncorrelated patterns, while Mode II has electric and magnetic omnidirectional …
In this paper, an electronically pattern reconfigurable antenna for Internet of Things (IoT) applications is presented. The antenna consists of 4 wire-patches sharing the same ground plane. This radiating element can switch between four end-fire …
In this paper, a wearable waveguide surface for Body Area Network (BAN) communications is proposed. The designed structure is a via-less easy-to-manufacture waveguide surface optimized to work in the 2.6 GHz band. It is built on a flexible substrate, …
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 …
In this paper, a slot-based electronically steerable parasitic array radiator (ESPAR) antenna suitable for Internetof-Things (IoT) applications is proposed. The antenna can provide 12 directive and 2 slightly different omnidirectional radiation …
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 …
This paper presents a low-cost measurement method for MIMO antenna performance assessment based on the open-source OpenAirInterface initiative. MISO 8×1 measurements are presented to experimentally prove the reproductibility of the test method, using …
The article describes a low-cost and open IoT platform for rural applications in developing countries. Using the latest low-power, long-range radio technologies and off-the-shelves components, the platform can be quickly deployed and customized for a …
This paper presents a low-cost measurement method for MIMO antenna performance assessment based on the open-source OpenAirInterface initiative. A first measurement is presented with a prototype with 8 antennas at 2.6 GHz integrated into a …
This letter proposes an approach for the realization of three-dimensional flexible antennas based on the use of liquid metal and additive printing technologies. As a representative example, a miniaturized inverted-F antenna (IFA) operating at 885 MHz …