We have all seen Printed Circuit Board (PCB) antennas: those squiggly bits of traces on PCBs connected often to a Bluetooth, WiFi or other wireless communication chip. On modules like for the ...

But just to be sure, he isolated the circuit using a two coils ... He tested against a meter long antenna and found that his setup far outperforms it. Actually, he found that a six foot extension ...

4). 4. (A) Schematic for all-3D-printed antenna system consisted of a horn antenna and transmitarray. (B) Photo of the assembled 20-cm transmitarray being measured. (C) Comparison between the ...