In this paper, a reconfigurable patch antenna design operating at 868MHz for Low Power Wide Area Network (LoRa), 1.58 GHz for Global Positioning System (GPS) and 2.4 GHz for Bluetooth is presented. The design is reconfigurable thanks to the …
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 discusses the design of miniature antennas for internet-of-things (IoT) applications. Differently from other communication systems, IoT devices have almost no bandwidth requirements, allowing for strong antenna miniaturization. However, …
This paper presents a multimode antenna operating over the GSM, GPS and WIFI bands. The antenna exhibits an omnidirectional radiation diagram in the GSM band and a directive pattern at the GPS frequency. In addition, the proposed antenna has a …