Large vertical aperture antenna

From EUROCONTROL ATM Lexicon
Jump to: navigation, search
Link Semantic Value
Term large vertical aperture antenna
Status


Mandatory for


Contexts


Categories
Synonyms


Related entries


Broader term


Narrower term


Abbreviation

LVA

Definition

An SSR antenna comprising two-dimensional array radiating elements. A typical LVA consists of a number of columns (each consisting of a vertical linear array designed to produce beam shaping in the vertical plane) arranged in a horizontal linear array to produce between 2° and 3° azimuth beamwidth. Typically, LVA antennas are a pre-requisite for monopulse SSR systems.

Definition Source

ICAO (2004) DOC 9684 Manual of the Secondary Surveillance Radar (SSR) Systems 2004, 3rd ed., p. (xi) & p. (xix)

Note