focal-plane array

focal-plane array

An array of dipoles or horn antennas in the focal plane of a radio telescope. Each element in the array is fed to its own receiving system, so that the array can be used to map a region of sky with an efficiency much greater than that of a single element. These arrays may however be difficult to fabricate, especially at submillimeter wavelengths.

focal-plane array

[¦fō·kəl ‚plān ə′rā]
(electronics)
A photodetector that has up to a million photosensors on a single semiconductor silicon chip arranged in a rectangular grid matrix that is placed in the focal plane of an optical instrument.
References in periodicals archive ?
The possibility of making a major breakthrough in this field has become possible thanks to two new and revolutionary radio facilities becoming available in Europe: the LOw Frequency ARray (LOFAR), now in its commissioning phase, and the focal-plane array system Apertif to be installed starting 2013 on the Westerbork Synthesis Radio Telescope (WSRT).
Because pixels in the MOXIE camera are very large, the focal-plane array created has far more collection area than competing technologies and is correspondingly large and thus sensitive.
Recently, NIST researchers, working under the auspices of an Office of Law Enforcement Standards program, have demonstrated a 120-element focal-plane array of antenna-coupled microbolometers optimized for wave-lengths near 3 mm (100 GHz frequency).