passive electronically scanned array
E123420
A passive electronically scanned array is a type of radar antenna system that steers its beam electronically using multiple fixed radiating elements fed by phase shifters, rather than by mechanically moving the antenna.
All labels observed (1)
| Label | Occurrences |
|---|---|
| passive electronically scanned array canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1076876 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: passive electronically scanned array Context triple: [AN/MPQ-53 radar, hasTechnology, passive electronically scanned array]
-
A.
IEEE Radar Systems Panel
The IEEE Radar Systems Panel is a technical body within the IEEE that provides leadership, coordination, and guidance for the radar engineering community, including overseeing major radar-related conferences and activities.
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B.
Aegis radar components
Aegis radar components are advanced naval radar and combat system elements designed to detect, track, and guide weapons against multiple airborne and missile threats as part of the Aegis Combat System.
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C.
AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
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D.
Allen Telescope Array
The Allen Telescope Array is a large, multi-dish radio telescope facility in California designed primarily for simultaneous radio astronomy and the search for extraterrestrial intelligence.
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E.
IEEE Antennas and Propagation Magazine
IEEE Antennas and Propagation Magazine is a peer-reviewed periodical that provides tutorials, reviews, and technical articles on antenna theory, design, and electromagnetic wave propagation for researchers and practitioners in the field.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: passive electronically scanned array Target entity description: A passive electronically scanned array is a type of radar antenna system that steers its beam electronically using multiple fixed radiating elements fed by phase shifters, rather than by mechanically moving the antenna.
-
A.
IEEE Radar Systems Panel
The IEEE Radar Systems Panel is a technical body within the IEEE that provides leadership, coordination, and guidance for the radar engineering community, including overseeing major radar-related conferences and activities.
-
B.
Aegis radar components
Aegis radar components are advanced naval radar and combat system elements designed to detect, track, and guide weapons against multiple airborne and missile threats as part of the Aegis Combat System.
-
C.
AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
-
D.
Allen Telescope Array
The Allen Telescope Array is a large, multi-dish radio telescope facility in California designed primarily for simultaneous radio astronomy and the search for extraterrestrial intelligence.
-
E.
IEEE Antennas and Propagation Magazine
IEEE Antennas and Propagation Magazine is a peer-reviewed periodical that provides tutorials, reviews, and technical articles on antenna theory, design, and electromagnetic wave propagation for researchers and practitioners in the field.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
phased array antenna
ⓘ
radar antenna system ⓘ |
| basedOnPrinciple |
controlling relative phase to steer main lobe
ⓘ
interference of signals from multiple radiating elements ⓘ |
| comparedTo | active electronically scanned array ⓘ |
| componentOf | phased array radar ⓘ |
| controlledBy |
beam steering computer
ⓘ
phase control network ⓘ |
| developedFor |
enhanced reliability in harsh environments
ⓘ
faster beam steering than mechanically scanned antennas ⓘ improved tracking of multiple targets ⓘ |
| differsFrom |
active electronically scanned array by lacking a transmit/receive module at each element
ⓘ
active electronically scanned array by using a single transmitter and receiver ⓘ |
| doesNotUse | mechanical beam steering ⓘ |
| enables |
adaptive beam shaping
ⓘ
low sidelobe beam patterns ⓘ track-while-scan radar modes ⓘ |
| hasAbbreviation | PESA ⓘ |
| hasAlternativeName |
passive electronically steered array
ⓘ
passive phased array ⓘ |
| hasProperty |
ability to form narrow beams
ⓘ
ability to scan in azimuth ⓘ ability to scan in elevation ⓘ beam steering without moving the antenna mechanically ⓘ centralized high-power RF generation ⓘ electronically controlled phase of each element ⓘ fixed antenna elements ⓘ frequency agility capability ⓘ higher vulnerability to single-point transmitter failure than AESA ⓘ improved reliability compared to mechanically steered antennas ⓘ limited multi-beam capability compared to AESA ⓘ lower average power consumption than comparable AESA in some implementations ⓘ lower cost than active electronically scanned array in many applications ⓘ lower maintenance than mechanically steered antennas ⓘ passive radiating elements ⓘ phase control at each element or subarray ⓘ rapid beam steering ⓘ reduced moving parts ⓘ single central receiver ⓘ single central transmitter ⓘ slower beam agility than AESA in many designs ⓘ |
| usedIn |
airborne early warning radar
ⓘ
civilian air traffic control radar ⓘ fighter aircraft radar ⓘ fire-control radar ⓘ ground-based air defense radar ⓘ military radar systems ⓘ naval surveillance radar ⓘ weather radar systems ⓘ |
| uses |
electronic beam steering
ⓘ
multiple fixed radiating elements ⓘ phase shifters ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: passive electronically scanned array Description of subject: A passive electronically scanned array is a type of radar antenna system that steers its beam electronically using multiple fixed radiating elements fed by phase shifters, rather than by mechanically moving the antenna.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.