The 21-40-19 ultra wideband, airborne ground plane antenna is designed for SIGINT type applications where several antennas can be setup in a DF array configuration. The structure of the antenna is composed of a contoured monocone that is shaped for optimized radiation diagram to avoid deep nulls in the elevation pattern throughout the frequency band.
The antenna is constructed using high strength fiber glass with a single mounting stud. The structure if filled with closed cell foam for durability and reliability.
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规格：
Weight:
0.22 lb (100 g)
Overall Height:
2.22 in (56.5 mm)
Antenna Type:
Wideband Antenna
Frequency Response:
900 MHz — 3000 MHz
Mounting Pattern:
Single hole 5/8 UNEF
Gain:
3 dBi (average)
Impedance:
50Ω
Power:
100 watts (average)
Phase/Amplitude Match:
The antenna can be selected for phase and amplitude matching for use in DF system, either to a “Golden Standard” or in sets
Polarization:
vertical
Radiation Pattern:
omni-directional in azimuth
Antenna RF Connector:
TNC (female)
特征：
Ultra wide-band
Low-profile
Maybe used in antenna arrays
Fully sealed construction for environmental reliability
Designed to meet MIL-STD-810 environmental conditions
