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 ?
Therefore, a focal-plane array concept is considered as the most promising system concept in terms of performance and cost.
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.
The pod combines a staring MWIR focal-plane array targeting flir, a CCD camera, and a high-power diode-pumped laser.
However, an uncooled "B-Kit" focal-plane array (FPA) is already planned by the Army, and it will take over from current cooled systems sometime after the middle of the decade (see below).
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).
Damocles is a lightweight, slim-line pod incorporating a mid-wave focal-plane array infrared imager, and can be fitted with a navigation FLIR in the pylon.
FTIR imaging system comprises a step-scan interferometer, an imaging-ready microscope, and a focal-plane array (FPA) detector.
The ROVIR flew over a scene which a variety of objects, from buildings and cars to people and power lines to demonstrate the feasibility of employing such a vehicle for covert, night-time, close-in reconnaissance and intelligence gathering at altitudes up to about 200 m, as well as to collect performance data for further development of an IR uncooled focal-plane array (FPA).
First, the tracker, an IR focal-plane array that rests atop the ATIRCM jam head gimbal, has been moved off-gimbal (the tracker acquires and tracks the missile after the warner's initial detection of the threat) and the IR lamp jammers have been removed.
For the IR sensor, for instance, it has established a requirement for a scanning focal-plane array, a mature technology, rather than for more advanced staring-array technology.
Evolving focal-plane array technology and high-speed processors will increase the options available to missile designers to enhance performance and negate countermeasures.