Appeal No. 1998-0437
Application No. 08/603,523
The disclosed invention relates to a device and a method
of producing an acoustic wave device that comprises a
substrate, a transducer disposed on the substrate, and
reflectors disposed at first and second acoustic ports of the
transducer. Each of the reflectors includes a number N of
g
reflection elements, and the number N is chosen in accordance
g
2 2 2 20.5 2 2 -0.5 2
with (2B/3)(2B + 8k - 2B(B + 8k ) -(k /3) )# N # (4B/3)(2B
g
2 2 2 0.5
+ 8k -2B(B + 8k )
2 2 -0.5 2
-(2k /3) ) wherein k is an electromechanical coupling
coefficient of the substrate.
Claim 1 is illustrative of the claimed subject matter and
is reproduced below:
1. An acoustic wave device comprising:
a substrate for supporting acoustic wave propagation;
a transducer disposed on said substrate, said transducer for
converting electrical energy to acoustic energy and vice
versa; and
a first reflector disposed at a first acoustic port of said
transducer, wherein said first reflector includes a first
number of reflection elements, wherein said first number
includes a first number N of reflection elements, said first
g1
number N chosen in accordance with (2B/3)(2B + 8k - 2B(B +g1 2 2 2
2 0.5 2 2 -0.5 2 2 2 2 0.5
8k ) -(k /3) ) # N # (4B/3)(2B + 8k - 2B(B + 8k ) -
g1
2 2 -0.5 2
(2k /3) ) , wherein k is an electromechanical coupling
coefficient of said substrate.
3
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