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Planar phase-shifting structures for steerable DBS antennas

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3 Author(s)
Griffiths, H.D. ; Univ. Coll., London, UK ; Vernon, A.M. ; Milne, K.

The authors describe the design and performance of planar phase shifting structures. A pattern of thin metallic shapes can provide a net inductive or capacitive susceptance to a propagating wave, which influences its phase (and amplitude). The pattern can be fabricated by etching a transparent copper-clad substrate, in much the same way as is done with printed circuit boards. This same basic printed planar susceptance technique has been used in the design of frequency-selective surfaces; the effect sought by the authors is (in circuit terms) that of a spatially-varying phase-shifter rather than a filter

Published in:

Antennas and Propagation, 1989. ICAP 89., Sixth International Conference on (Conf. Publ. No.301)

Date of Conference:

4-7 Apr 1989