Abstract: The low profile antenna assembly comprises a generally rectangular frame member housing a planar antenna. A radar absorbing material is attached to the front side of the housing with a radome covering the front side of the planar antenna and attached to the frame member. The planar antenna is a microstrip array fed by a beam forming network that uses either delay lines or phase shifters to electronically steer the antenna pattern horizontally and vertically. The antenna assembly is weatherproofed, painted and flush mounted against a building surface for camouflaging the antenna assembly from observers at a distance.
Type:
Grant
Filed:
March 20, 1998
Date of Patent:
February 15, 2000
Assignee:
Northern Telecom Limited
Inventors:
Scott P. Bergen, Frederick A. Robertson