Title :
Investigation of multifilar helical antennas with small radius and large pitch angle on basis of eigenmodes of infinite sheath helix
Author :
Shatrov, A.D. ; Sivov, A.N.
Author_Institution :
Inst. of Radio Eng. & Electron., Acad. of Sci., Moscow
fDate :
9/15/1994 12:00:00 AM
Abstract :
A simple analytical description of the eigenmodes of an infinite length sheath helix of small radius and large pitch angle is proposed. The obtained results offer a simple explanation for the half power loss in the bifilar helical antenna caused by the current behaviour in the antenna
Keywords :
antenna theory; antennas; eigenvalues and eigenfunctions; bifilar helical antenna; current behaviour; eigenmodes; half power loss; infinite sheath helix; multifilar helical antennas; pitch angle; radius;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941099
