Title :
The performance properties of an electrically small folded spherical helix antenna
Author_Institution :
Cushcraft Corp., Manchester, NH, USA
Abstract :
The performance properties of an electrically small folded spherical helix antenna are presented. This antenna has a total height less than 0.06λ where it is self-resonant and has a radiation resistance near 50 ohms. This antenna exhibits typical monopole radiation patterns, it is predominantly vertically polarized and it has an efficiency in excess of 90%. Finally, near its resonant frequency it exhibits a Q that closely approaches the fundamental Q-limit.
Keywords :
Q-factor; antenna radiation patterns; electric resistance; electromagnetic wave polarisation; helical antennas; monopole antennas; Q factor; electrically small antenna; folded spherical helix antenna; monopole radiation patterns; radiation resistance; resonant frequency; vertical polarization; Antenna feeds; Antenna radiation patterns; Bandwidth; Dipole antennas; Electric resistance; Filling; Helical antennas; Impedance; Polarization; Resonant frequency;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016916
