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L-Band Sector Antenna


The SECT-A0021 is a compact L-band sector antenna for communications applications operating with high gain in the band 1.15 to 1.4 GHz. The antenna provides excellent cross-pol and low sidelobe and backlobe, levels, making use of a reflector-backed collinear omni design. The design provides for a large elevation coverage area of ±9°, not requiring the need to tilt the antenna when mounted. Mounting equipment is provided for mast-mounting in the form of stainless steel Ubolts, and wall mounting, which can be accomplished by bolting the antenna mounting bracket to a wall or other vertical flat surface (wall bolts are not provided) The antenna is rugged and designed for long-term outdoor installation in harsh environments. It is provided with a low impedance path to earth to protect radio equipment against surges and static buildup.

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Frequency 1.15 - 1.4 GHz
VSWR < 2:1
Nominal input impedance 50 O
Power handling 12 W
Gain 12 dBi (typical) 11.5 dBi (minimum)
Elevation (E-plane) -3 dB beamwidth > 18°
Azimuth (H-plane) -3 dB beamwidth 110° (± 5°)
Polarisation Vertical
Surge/ESD protection DC shorted
Dimensions (h x d) 870 mm x 70 mm (excl. bracket)
Weight < 5kg
Colour Black
Mounting Stainless steel mounting for mast or wall (wall bolts not provided)
Groundplane requirement Groundplane independent
Wind survival 100 km/h

    Product Applications

  • V/UHF Tactical Communications
  • Point-to-point Communications

    Design Features

  • Collinear four element design Compact design Wideband operation Low VSWR in operational band Low sidelobe and backlobe levels Rugged