Title :
The highly shortened conical helix
Author_Institution :
Communications Research Centre, Ottawa, Ont., Canada
Abstract :
The highly shortened conical helix antenna is a leaky wave antenna that is inherently small yet displays high directional gain and good return loss, bandwidth, and circular polarization characteristics. As a consequence it can be used in lieu of the microstrip patch antenna, especially within confined spaces and in small arrays. This paper discusses the characteristics and details the effect of various physical variables on the performance of the highly shortened conical helix. Examples of successful designs which have found application in L-Band mobile satellite communications terminals are provided
Keywords :
antenna radiation patterns; conical antennas; current distribution; direct broadcasting by satellite; directive antennas; helical antennas; impedance matching; leaky wave antennas; microwave antennas; mobile antennas; mobile satellite communication; personal communication networks; satellite antennas; satellite ground stations; telecommunication terminals; L-Band mobile satellite communications terminals; bandwidth; characteristics; circular polarization; designs; directional gain; highly shortened conical helix antenna; leaky wave antenna; performance; physical variables; return loss; Bandwidth; Directive antennas; Displays; Helical antennas; L-band; Leaky wave antennas; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Polarization;
Conference_Titel :
Universal Personal Communications, 1993. Personal Communications: Gateway to the 21st Century. Conference Record., 2nd International Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-1396-8
DOI :
10.1109/ICUPC.1993.528512
