Smelling and detecting things by touch.
The Blowjob arthropod family
Insects
all insects have antenna
The common function of antenna is sensory. In insects humidity is a big issue; but amongst arthropods they are used for touch, and the chemical sense of taste/smell, and some even use it to communicate.
The Arachnid class is an example of an arthropod group characterized by possessing two main body segments, eight legs, but having no antennae. All arthropods except chelicerates and proturans have antennae. (The chelicerates include arachnids, horseshoe crabs, and sea spiders.)
All of these...
Arthropods with antenna use them for sensory functions, and commonly for the chemical sense (smell and taste). Antenna function differ for various species but often include detection of motion (vibration), touch, and heat.
A smart antenna is used to identify signal signature and to track an antenna beam on the target. Some are for beamforming which is used to create the radiation pattern of the antenna.
I think Printed Antenna ( array microstrip antenna)
An arthropod
A car antenna booster is used to 'boost' the radio waves of the car's antenna. This is usually used to improve radio quality and reduce static that might be heard.
Vectors of the arthropod.