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Antenna structure

The photograph above shows the various composite components which form the main structural strength member of the antenna used for Radar & Communications frequency band reception.

They consist of a central hub which after being laid up is machined inside to achieve 'o'ring surface finish and outside to obtain the exterior profile.

The balum tube, webs, base ring and inner cone are produced similarly. These components are then dry fitted, assembled and boned together using epoxy adhesive. Twin copper spirals are then positioned and are bonded into place.

Finally, the outer cone is then laid up, fully cured and machined to the outer cone dimensions. The antenna assembly is then subjected to testing and qualification to meet the full operating profile of the host platform.

Technical Specification

MATERIALS
Glass Reinforced Plastic
Reinforcement
Plain weave E glass cloth
Resin System
Epoxy LY 5052 & HY 5052
Bonding
Araldite 2014
Weight
450 Kgs
Dimensions
330 mm Diameter x 620 mm High
Pressure (Hydrostatic)
70bar
Operational Temperature
-30°C to +70°C
Storage Temperature
-30°C to +70°C
All materials resistant to salt corrosion and in-service fluids and contaminants.