Filter functioning with acoustic waves

Details Filter functioning with acoustic waves Filter functioning with acoustic waves

1986-01-16

1987-07-07

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313D, 333153, 29 2536, 427100, H03H 9145, H03H 925, H03H 964, H01L 4104

Patent

active

046790144

ABSTRACT:
A surface wave filter is provided with digital structures formed of strip-shaped coatings which are photolithographically produced. The digital structures have groups allocated to them which are also formed of strip-shaped coatings and which follow a respective digital structure. By use of such groups, which do not produce interfering reflections, a level exposure during formation of the digital structures is achieved.

REFERENCES:
patent: 4325037 (1982-04-01), Bulst et al.

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