Appeal No. 2000-0953 Page 5
Application No. 08/288,418
of said superconducting material to cause said
superconducting material to be superconducting when said
host platform is substantially metallic and to be non-
superconducting when said host platform is substantially
nonmetallic.
Koepf's invention relates to antenna systems,
particularly antenna systems adapted to operate in the
microwave and micro-microwave regimes and more particularly to
high-gain phased antenna arrays operating from above 20 to
beyond 100 gigahertz. The antenna of Koepf includes a
dielectric substrate, a planar layer of superconductive
material on one surface of the dielectric substrate patterned
in the form of at least one, and preferably a plurality of,
microwave antenna elements, connected to an antenna input port
through a microwave feed network, and a planar layer of
superconductive material formed on the other surface of the
dielectric substrate. Koepf provides (column 3, line 54, to
column 4, line 15) that
Antenna systems of the invention can thus include an
array of superconductive antenna elements interconnected
by a superconductive microwave network, which may include
delay line portions, provided with a plurality of
superconductive switching means that can be operated to
provide variable phasing and directivity. In addition, an
antenna system of the invention may be provided with one
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