"complex antenna structures"

3D compact antenna using liquid metal and additive technologies

This paper presents a miniature antenna in Ultra High Frequency (UHF) band fabricated using liquid metal and additive technologies. Such an approach allows the accurate realization of compact and complex antenna structures. The design as well as the …

Antenna Q bounds for given directivity: a case study of a directive parasitic element antenna

In certain communication applications it is advantageous to constrain the shape of the far-field, as to make it act as a spatial filter. This can mitigate interference from other antennas. Such constraints on the far-field behavior, in particular for …

Compact integrated IoT antenna robust to the effects of the environment

In this paper, a reconfigurable antenna integrated into a miniature device for asset tracking is presented. This antenna system has the ability to compensate environment effect by tuning the antenna resonance frequency. The proposed solution is …

Use of a Dielectric Resonator Antenna to Reduce Hand Effect in a Miniature IoT Device

In this work, we compare two different antenna topologies integrated in a miniature IoT device working at 900 MHz: Inverted F Antenna (IFA) and Dielectric Resonator Antenna (DRA). This type of handheld device can be strongly impacted by human body …