The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 1979
Filed:
Jan. 14, 1977
Aristotelis S Arvanitis, Addison, IL (US);
Stanley Malinowski, Park Ridge, IL (US);
Corwin E Livenick, Hickory Hill, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
Three electrode pairs are formed on a monolithic piezoelectric element which exhibits anisotropic properties with respect to its X and Z axes. The electrodes of each pair are located on opposite sides of the piezoelectric element, with all electrodes being of predetermined dimensions. The first and second electrode pairs are aligned on the X axes at a predetermined spacing therebetween. The second and third electrode pair are aligned on the Z axis, also at a predetermined spacing. In circuit operation, a signal to be processed is coupled to the first electrode pair and extracted from the third electrode pair, with the electrodes of the second pair shorted together. In this manner, the resonator displays a three pole passband characteristic having excellent spur suppression.