THE LONG, CYLINDRICAL ANTENNA: CURRENT AND ADMITTANCE
Abstract
I DENTIFI RS: Cylindrical antennas, Long antennas.A study was made of the long, cylindrical antenna. The driving-point admitt nce, the relative amplitude, and the phase distributions of the current are given for long cylindrical dipole antennas ranging in electrical half-length from beta-h = 0 o b -h 1 when driven by a two-wire line. Th sured values of the driving-point admittance are in good agreement with the King-Middleton second-order-theory for the shorter lengt s of antennas and with Wu's theory for the longer lengths. Particular care was taken to determine the influence of n unbalanced feeding lin on both t e driving-poi t admit ance and the curr nt distribution on the antenna. Th measur driving-point admi ance of the long antenna was extrapolated to that of the infinite length. The current distributions on the h lves of the antenna when driven by symmetric currents (completely unbalanced line) and by anti-symmetric currents ( BALA CE LINE) are compared. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 25, 1962
- Accession Number
- AD0275563
Entities
People
- Keigo Iizuka
- Ronald W. P. King
- Sheila Prasad
Organizations
- Harvard University