Accession Number : AD0738560

Title :   The RF Characteristics of a Cylindrical Loop Antenna,

Descriptive Note : Technical rept.,

Corporate Author : HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s) : Riessler,Walter A.

Report Date : DEC 1971

Pagination or Media Count : 37

Abstract : The inductance, radiation resistance, and surface current distribution of a perfectly conducting cylindrical loop are determined from first principles for the case of uniformly distributed driving voltage. First and second order terms derived in analytic form predict values which agree well, within limits imposed by the approximations made, with values calculated by computer for the general case. Briefly, to terms of second order, loop radiation resistance is independent of conductor width and increases with frequency in the same manner as a wire loop. Effective loop inductance increases with frequency, the rate increasing with the ratio of loop width to diameter. The current density is greatest near the edges of the conductor and the relative concentration on the inner surface increases with loop width. (Author)

Descriptors :   (*LOOP ANTENNAS, ELECTRICAL PROPERTIES), (*RADIO PROXIMITY FUZES, LOOP ANTENNAS), NUMERICAL ANALYSIS

Subject Categories : Electrical and Electronic Equipment
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE