One of the first things that an amateur radio operator is likely to do once receiving their license is grab a dual-band handheld and try to make contacts with a local repeater. After the initial ...

If you’re a regular reader of Hackaday, you may have noticed a certain fondness for Meshtastic devices, and the LoRa protocol more generally. LoRa is a great, low-power radio communications standards, ...

Abstract: This paper offers a comprehensive account of a series of studies on rectenna arrays inspired by the Yagi-Uda antenna, with the aim of advancing techniques for wireless power transfer over ...

Abstract: Wireless power transfer (WPT) has the potential to supply energy to various applications, such as electric vehicles and uncrewed aerial vehicles (UAVs), enabling extended operation without ...

The Yagi-Uda antenna is an iconic design in the field of radiowave transmission and detection. Scientists in Japan have now made a nanoscale equivalent from an array of gold nanorods that operates ...