Accession Number : AD0283291

Title :   STUDY AND INVESTIGATION OF A UHF-VHF ANTENNA

Corporate Author : MICHIGAN UNIV ANN ARBOR

Personal Author(s) : ADAMS,A.T. ; KALAFUS,R.M.

Report Date : JUN 1962

Pagination or Media Count : 1

Abstract : Further work on the ferrite-loaded biconical antenna has been initiated, with the object of evaluating the impedance, beam pattern, and efficiency. The problem of a ferrite-loaded, rectangular-cavity slot antenna has been formulated, and the variational procedure is being carried out to evaluate the impedance, radiation pattern, and the efficiency. The radiation patterns of the ferrite-loaded, rectangularcavity slot antenna have been measured and compared with the theoretical predictions of simpleaperture iffraction theory. Agreement with theory is good for the H-plane patterns and poor for the E-plane patterns. The effect of a flange is greater than expected. (Author)

Descriptors :   *ANTENNAS, *BICONICAL ANTENNAS, *HELICAL ANTENNAS, *LOOP ANTENNAS, *SLOT ANTENNAS, ANTENNA LOBES, ANTENNA RADIATION PATTERNS, CYLINDRICAL BODIES, DIELECTRICS, ELECTRICAL IMPEDANCE, FERRITES, SURFACE PROPERTIES, ULTRAHIGH FREQUENCY, VERY HIGH FREQUENCY

Distribution Statement : APPROVED FOR PUBLIC RELEASE