Improvements in or relating to stripline antennae.

摘要

A travelling wave stripline antenna array adapted for use as a frequency-swept antenna, comprising a pattern of conducting material 4,5 on an insulating substrate 2 with a conducting backing 3, the pattern comprising a feeder strip 5 and a plurality of radiating antenna elements 4, each in the form of a strip attached to and extending transversely away from the feeder strip, and having an open circuit termination at its free end. At least some, and preferably all, of the strips 4 are formed with a longitudinal slot 6 extending from the opposite side of the feeder strip and terminating before the open circuit end of the strip, so that each slotted strip behaves as a phase shifter as well as a resonant radiating antenna element.