Appeal No. 2001-1536
Application 08/428,256
23(2) and an outer ground conductor that connects the ground
plane 22 to the capacity top between the ground plane and the
capacity top that is connected to the feed wire, as recited in
Claim 5." The examiner concludes that it would have been obvious
to employ a plurality of stacked capacity plates in the primary
references to provide additional frequencies of operation (FR4).
Appellants argue that none of the references teach stacking
capacity plates in a monopole antenna (Br12) and that there is no
suggestion to combine the teachings of Shibano with the other
references (Br13). Appellants argue the purpose of plural
capacity plates and respective feeds in the present invention is
to provide additional resonant frequencies operable in a wide
frequency band, which Shibano's multi-stage disc antenna provides
radiation of non-directional electric waves of a plurality of
frequencies simultaneously or selectively (Br12).
Shibano discloses a disc antenna which consists of a
conductor disc and a conductor ground plate placed in parallel to
each other and which radiates non-directional electric waves from
the space between them (col. 1, lines 6-10). A signal source is
connected between the conductor disc at a circumferential point
while a suitable point on the conductor disc which is different
from the feeding point is grounded by means of a grounding plate
(col. 3, lines 40-50). Shibano achieves impedance matching by
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