Appeal No. 2004-2195
Application No. 09/394,189
BACKGROUND
Appellants''s invention relates to a directional antenna for a hand-held wireless
communications device. An understanding of the invention can be derived from a
reading of exemplary claim 1, which is reproduced below.
1. A system for wireless communications comprising:
a hand-held wireless communications device;
an antenna coupled to the hand-held wireless communications
device, the antenna configured to radiate with greater field intensity over
an area of less than 360 degrees of arc;
a transmitter amplifier coupled to the antenna, the transmitter
amplifier having an output impedance that matches the impedance of the
antenna, the impedance of the antenna, determined by performing a finite
element analysis on a design of the antenna to determine an estimated
output impedance, and adjusting the antenna if the estimated output
impedance does not approximately match the transmitter amplifier output
impedance; and
wherein the antenna is oriented such that the area of less than 360
degrees of arc is in the direction away from a head of a user of the
hand-held wireless communications device.
The prior art references of record relied upon by the examiner in rejecting the
appealed claims are:
Naitou 4,849,767 Jul. 18, 1989
Lane et al. (Lane) 5,400,040 Mar. 21, 1995
Tsuru et al. (Tsuru) 5,530,919 Jun. 25, 1996
Krenz et al. (Krenz) 5,542,106 Jul. 30, 1996
Flowerdew et al. (Flowerdew) 6,134,420 Oct. 17, 2000
Erturk et al. (Erturk), “Design/Analysis of an Active Integrated Antenna,” 2 Antennas and
Propogation Society International Symposium 1322-1325 (July 1996)
2
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