Engineering topics

Markin, A. S.

Publications and source records attributed to Markin, A. S..

3 records

NASA NTRS1974

Selection of an optimal plan for construction of a spacecraft antenna system

An attempt is made to summarize the experience of the design of antennas for various types of spacecraft: fully oriented, partially oriented, and with arbitrary orientation. Several examples of the construction of antenna systems and their characteristics are given. The optimal relationship between weight, dimension and power characteristics of on-board devices allows selection of the most acceptable versions. Questions are presented for consideration in design of optimal spacecraft antenna-feeder systems.

Prigoda, B. A.↗

NASA NTRS1974

High frequency switching devices

Switching devices using various circuits of electronic or mechanical elements depending on the operating conditions and purpose of the switching were investigated and their uses are discussed.

Prigoda, B. A.↗

NASA NTRS1974

Checking the parameters of AFS in spacecraft in flight

The use of elements for remote testing of matching of on-board spacecraft antennas, required by the need to receive timely telemetry information on the quality of operation of antenna-feeder systems (AFS) during long flights, is discussed. Information on the traveling wave ratio deficiency to the AFS allowed improvement of quality and reliability of communications with spacecraft and developed telemetric information on the matching of on-board antennas, the efficiency of the feeder system and power of transmitters during long flights.

Vlasov, Y. A.↗