Accession Number:

ADA061481

Title:

Satellite Crosslinks.

Descriptive Note:

Technical note,

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

Report Date:

1978-08-04

Pagination or Media Count:

40.0

Abstract:

A brief study of the characteristics of a 60 GHz crosslink has been conducted. The study considers the incremental launch weight tradeoffs between a link using mechanically steerable parabolic reflector antennas and electronically steerable phased array antennas. An algorithm which determines the optimum compromise between transmitter power and aperture size for these two types of antennas is developed. It is concluded that the phased array antenna can be used only for small scan angles. With this restriction, the phased array antenna provides a better weight compromise for data rates below 100 kbps while the parabolic reflector antennas are to be preferred for data rates above 100 kbps. The susceptibility of the link to jamming attack is also briefly studied. It is generally concluded that the link will be relatively immune to jamming attack provided that the autotrack function of the link and the communication function both operate over bandwidths of 100 kHz or more. Author

Subject Categories:

  • Unmanned Spacecraft
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE