A coaxial cable delay system for a synthesis radio telescope

Details A coaxial cable delay system for a synthesis radio telescope A coaxial cable delay system for a synthesis radio telescope

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984itim...33...78l&link_type=abstract

IEEE Transactions on Instrumentation and Measurement (ISSN 0018-9456), vol. IM-33, June 1984, p. 78-83.

Computer Science

Performance

1

Coaxial Cables, Delay Lines, Radio Telescopes, Synthetic Apertures, Correlators, Microwave Attenuation, Performance Tests, Switching Circuits

Scientific paper

A switchable coaxial cable delay system for path compensation in a synthesis radio telescope operates over the frequency band 15-45 MHz. The requirements of continuum and spectral line observations determine the system specifications. Diode switches include or exclude cables whose lengths form a binary sequence from 0.625 to 320 m. Cables are equalized to compensate for the effects of frequency dependent attenuation and of dispersion. A simple technique for dispersion equalization is described.

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