Appeal No. 1997-3164 Application 08/397,024 With respect to the question of whether claim 23 requires that the alteration step take place after fabrication of the antenna, we agree with the examiner that claim 23 is not so limited. The claim recites the steps of providing a substrate of a certain type and altering dimensions of the tabs on the substrate. We agree with the examiner that the Schnetzer substrate shown in Figure 8 is initially provided without the indentations which are etched after the slots have been formed [column 8, lines 28-41]. As the indentations 137 are etched in Schnetzer at the time of fabrication, the step of altering the dimensions of the indentations after the substrate has been provided is satisfied as recited in claim 23. With respect to the question of whether the claimed invention requires that the method adjust two frequencies of a dual frequency cavity backed slot antenna, we agree with appellant. The preamble of claim 23 recites that the method is for tuning a dual frequency cavity backed slot antenna. Step (b) recites that the altering of dimensions adjusts “the frequency” of “said antenna.” The phrase “the frequency” must refer to the dual frequency of the preamble, and the phrase 8Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 NextLast modified: November 3, 2007