2.3. UWB Antennas[1]
[1] Section 2.3 courtesy of Dr. Hans Schantz. Portions reprinted with permission from “Introduction to Ultra-Wideband Antennas,” in 2003 IEEE Conference on Ultra Wideband Systems and Technologies. © 2003 IEEE.
An antenna is a transducer that converts guided electromagnetic energy in a transmission line to radiated electromagnetic energy in free space. Antennas also can be viewed as impedance transformers, coupling between an input or line impedance and the impedance of free space.
The imminent widespread commercial deployment of UWB systems has sparked renewed interest in the subject of ultra-wideband antennas. The power levels authorized by the FCC mean that every decibel counts in a UWB system—as much as or perhaps even ...
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