Title :
Nonuniformly-wound helical antennas
Author :
Golubovic, Ruzica ; Djordjevic, Antonije ; Olcan, Dragan ; Mosig, Juan
Author_Institution :
Lab. of Electromagn. & Acoust., Ecole Polytech. Fed. de Lausanne, Lausanne
Abstract :
We investigate nonuniformly-wound helical antennas without ground plane (antenna counterbalance is a wire pigtail), with aim to maximize RHCP gain. By optimizing radii and pitches of these antennas, we obtain antennas with the gain that is very close to the gain of the optimal uniformly-wound helical antennas with infinite ground plane, while the obtained nonuniform antennas are smaller and handier.
Keywords :
helical antennas; RHCP gain; antennas gain; nonuniformly-wound helical antennas; Acoustical engineering; Acoustics; Conductors; Design optimization; Electromagnetic modeling; Helical antennas; Particle swarm optimization; Piecewise linear techniques; Shape; Wire;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
