Appeal No. 1998-0180
Application No. 08/471,309
the second coaxial waveguide having a second coupling device connected to its output end, the
second coupling device coupling energy between the difference port and electromagnetic energy
propagating within the second coaxial waveguide,
whereby the first coaxial waveguide provides a sum electromagnetic radiation pattern with
respect to the electromagnetic radiation received from free space and the second coaxial waveguide
provides a difference electromagnetic radiation pattern with respect to the electromagnetic radiation
received from free space.
The examiner relies on the following references:
Low et al. (Low) 3,665,481 May 23, 1972
Liu et al. (Liu) 4,041,499 Aug. 9, 1977
Seavey 4,740,795 Apr. 26, 1988
Claim 1 stands rejected under 35 U.S.C. § 102 as anticipated by Liu.
Claim 1 stands rejected under 35 U.S.C. § 103 as unpatentable over Liu.
Claim 3 stands rejected under 35 U.S.C. § 103 as unpatentable over Liu and Low.
Claims 4 and 6 stand rejected under 35 U.S.C. § 103 as unpatentable over Liu, Low, and
Seavey.
We refer to the Final Rejection (Paper No. 17) and the Examiner's Answer (Paper No. 29) for
a statement of the examiner's position and to the Brief (Paper No. 28) and the Reply Brief (Paper No.1
30) for appellant’s position.
1We have not considered an initial Brief (Paper No. 25) that was determined by the examiner to lack
compliance with 37 CFR § 1.192.
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