Unlike active radar systems ... this system is a passive radar system that uses radio waves already present in the environment to track objects. A reference antenna is used to listen to the ...

like soldering an improved passive antenna in place of the chip antenna currently being used. Then, he takes it up a notch, and shows us how you could attach an active antenna by using a bias tee ...

Ericsson is at the forefront of this challenge with its advanced passive antennas. According to a joint article by Ericsson and ABI Research, these innovations are driving significant improvements ...