A Compact Radio-Frequency Localization System for Rescue Operations

This work presents a radio frequency compact system for rescue operations of missing people to reach in difficult or inaccessible areas not covered by radio or GSM services such as hills, mountains, woods and rural areas. The proposed system based on a high gain antenna, a compact software defined radio (SDR) receiver and a small elaboration unit. The system simulate a GSM base transceiver station and it is able to interrogate a nearby GSM mobile phone, carried on by missing people, and to de...

DIGITALIZZAZIONE DEL LAVORO: TRA OPPORTUNITÀ E SFIDE PER IL WORK-LIFE BALANCE

Design of a Low-Cost High-Performances Electronically Steerable Parasitic Array Antenna with RF-MEMS Switches

In this study an electronically steerable antenna based on an array of reconfigurable linear parasitic structure controlled, thanks to a set RF-MEMS switches, is proposed. The motivation of this study was to extend the use of reconfigurable parasitic antennas in internet of things (IoT) and wireless sensor networks (WSNs) applications. This goal can be reached, thanks to RF-MEMS switches that permit to strongly improve the radiating properties and to dramatically reduce the power consumption ...

A Smart Planar Antenna Based on a Reconfigurable Parasitic Structure Activated by RF-MEMS Switches

This work proposes a smart planar microstrip antenna that can be reconfigured and controlled by RF-MEMS, and is based on a reconfigurable parasitic structure. The antenna structure is based on an omnidirectional active element surrounded by a series of reconfigurable parasitic microstrip elements, which are connected to RF-MEMS switches that are used to electronically modify the state of the parasitic elements. The goal of the parasitic microstrip structure is to permit the steering of the ma...