Accession Number : AD0611124

Title :   BAND WIDTH OF A KNIFE-EDGD SCATTER CIRCUIT.

Descriptive Note : Research rept.,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Hoisington,David B.

Report Date : JAN 1965

Pagination or Media Count : 14

Abstract : The bandwidth of a knife-edge scatter circuit is estimated as a function of the antenna beam width. The knife edge is assumed to be located off to one side of a line between the transmitter and receiver as in the Monterey-San Jose circuit, but is assumed to be in a plane with this line. It is shown that where the effective knife edge is small compared to the beam width, the signal may be completely cancelled at the receiver. This cancellation can best be avoided by moving one antenna a lateral distance that is calculated. On the basis of the equations developed in this report, the bandwidth between nulls of the MontereySan Jose microwave circuit was calculated to be 2.6 Mc. The measured bandwidth was 3.4 Mc. (Author)

Descriptors :   (*MICROWAVE COMMUNICATIONS, MULTIPATH TRANSMISSION), (*RADIO WAVES, DIFFRACTION), (*ELECTROMAGNETIC WAVE REFLECTIONS, MICROWAVE COMMUNICATIONS), MICROWAVE NETWORKS, ANTENNA RADIATION PATTERNS, BANDWIDTH, RADIO TRANSMISSION, ATTENUATION, PROPAGATION, DATA TRANSMISSION SYSTEMS, HIGH FREQUENCY

Distribution Statement : APPROVED FOR PUBLIC RELEASE