The long-wire dipole antenna is effective for low-frequency systems. Adding LC traps makes a single-band dipole antenna into ...

A very low-tech way to make field recordings ... shows the performace of the antenna at each angle, and unsurprisingly I proved to myself that a HB9CV is indeed a directional antenna.

Abstract: This paper presents a dual-frequency microwave ablation antenna (DMWAA) with tunable directional-ratio heating for precise tumor ablation near sensitive organs. The dual-frequency antenna (2 ...

Abstract: This paper proposes a decentralized algorithm for organizing an ad hoc sensor network into clusters with directional antennas. The proposed autonomous clustering scheme aims to reduce the ...

Kyocera has developed an innovative mmWave phased array antenna module (PAAM) that simultaneously creates multiple beams in different directions at different frequencies. These PAAMs can enable a wide ...