Title :
Traveling-wave analysis of a bifilar scanning helical antenna
Author :
Zimmerman, Robert K., Jr.
Author_Institution :
Lawrence Behr Assoc. Inc., Greenville, NC, USA
fDate :
6/1/2000 12:00:00 AM
Abstract :
The bifilar scanning helical antenna is analyzed by considering the structure to carry a single traveling wave. It is shown that the relative phase velocity (v/c) must equal unity to yield the scanning features shown by numerical experiment. This is at complete odds with monofilament helices (Kraus), which display a slow wave structure
Keywords :
antenna radiation patterns; helical antennas; scanning antennas; slow wave structures; bifilar scanning helical antenna; conical radiation lobe; monofilament helices; numerical experiment; relative phase velocity; single traveling wave; slow wave structure; traveling-wave analysis; Antennas and propagation; Dielectric resonator antennas; Helical antennas; Impedance measurement; Integral equations; Moment methods; Performance analysis; Performance evaluation; Slot antennas; Voltage;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
