@conference {298,
	title = {Crazy Antennas},
	booktitle = {HamSCI Workshop 2019},
	year = {2019},
	month = {03/2019},
	publisher = {HamSCI},
	organization = {HamSCI},
	address = {Cleveland, OH},
	abstract = {<p><span style="color:rgb(0, 0, 0); font-family:roboto,robotodraft,helvetica,arial,sans-serif">Everyone here is familiar with traditional antennas, time-honored favorites like dipoles and solid parabolic reflectors. But occasionally, circumstances call for something peculiar. This paper will describe a number of unusual antennas for particular communications scenarios that have been developed at the NASA Glenn Research over the past decade or so. The list includes: a K-band scanning ferroelectric reflectarray; a UHF {\textquotedblleft}Vivaldi{\textquotedblright} for cellular connectivity to unmanned aerial vehicles; a Ku-band array that develops a top-hat pattern to feed a zone plate antenna; an active antenna that toggles between Iridium and GPS bands; a VHF hybrid spiral/dipole for orientation determination on Venus; and a Ku-band deployable reflector that strongly resembles a giant beach ball. Design strategy and performance results will be included, and trends towards cognitive antennas will be discussed.</span></p>
},
	author = {Romanofsky, Robert}
}
