Accession Number : AD0283952

Title :   SATELLITE DATA TRANSMISSION SYSTEM

Corporate Author : SYLVANIA ELECTRIC PRODUCTS INC BUFFALO N Y

Personal Author(s) : ANDRE,S.N.

Report Date : 15 AUG 1962

Pagination or Media Count : 1

Abstract : Identifi rs: Tunnel Diodes. he Satellite D ATA Transmission System is a oneway satellite-to-earth data link using an AUTOMATIC ANGLE RETURN ADAPTIVE PH SED ARRAY. A description of t e system operation and some typical applications are given. The isolation achieved by orthogonally polarized receiving and transmitting arrays is analyzed and shown to yield coupli g of less than 30 db. This results in simplified diplexing and tunnel diode amplifier requirements. A 90% reduction in primary vehicular power i shown to be obtainable with this system. Array element phase tolerance is analyzed with respect to gain r duction and is not a critical factor for most system applications. Pl ns for the design, fabrication, and test of a feasibility model are presented. This model consists of two orthogonally polarized nine-element phased arrays for receiving and trans itting, and tunnel diode amplifiers/modulators in the interconnecting lines between the arrays. (Author)

Descriptors :   *DATA TRANSMISSION SYSTEMS, *SATELLITES (ARTIFICIAL), AERIAL RECONNAISSANCE, AIR-TO-SURFACE, AIRBORNE, AIRCRAFT, ANTENNAS, AUTOMATIC, DATA PROCESSING, DIODES, MICROWAVE COMMUNICATIONS, MODULATION, POLARIZATION, RADIO RECEIVERS, RADIO RELAY SYSTEMS, RADIO TRANSMITTERS, RADIOFREQUENCY AMPLIFIERS, SATELLITE ANTENNAS, TRANSMISSION LINES

Distribution Statement : APPROVED FOR PUBLIC RELEASE