Microwave technology innovations in orbiting VLBI

Microwave technology innovations in orbiting VLBI

The radio astronomical technique of very long baseline interferometry (VLBI) will soon be extended beyond the Earth's surface by placing antennas and receiving systems in high Earth orbit. Two such orbiting VLBI telescopes are expected to be in operation by 1995. The technical challenges of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: D'Addario, L.R.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Earth
Microwave antennas
Microwave technology
Microwave theory and techniques
Optical design
Radio interferometry
Receiving antennas
Space technology
Technological innovation
Telescopes
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Beschreibung
Zusammenfassung:The radio astronomical technique of very long baseline interferometry (VLBI) will soon be extended beyond the Earth's surface by placing antennas and receiving systems in high Earth orbit. Two such orbiting VLBI telescopes are expected to be in operation by 1995. The technical challenges of these projects have produced several interesting innovations in the microwave area, including designs of large, deployable antennas; designs of multifrequency feed systems; cryogenic low-noise amplifiers; and methods of precise time synchronization with ground telescopes.< >
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.1992.188262