Resources Contact Us Home
Surface acoustic wave filter

Image Number 5 for United States Patent #4829273.

A frequency characteristic of a surface acoustic wave filter having at least a first transducer and a second transducer is determined by a product of a frequency amplitude characteristic of the first transducer and that of the second transducer so that the electrodes of the both transducers are formed in such a way that third harmonics band in the frequency characteristic of the first transducer is shifted out that of the second transducer in order to prevent third harmonics.

  Recently Added Patents
Visual processing apparatus and visual processing method
Liquid low temperature injection molding process
Nutritional supplement method
Performing failover for a plurality of different types of videoconferencing devices
Solar cell using polymer-dispersed liquid crystals
Ice tray for refrigerator
  Randomly Featured Patents
Toolbox saw
Plush textured multicolored flock transfer
Garment for securing an external portion of a catheter
Apparatus and method of converting subtractive decode device cycles to positive peripheral component interface decode device cycles
Remittance payment processing with account scheming and/or validation
Antiatherosclerotic silanes
Valve apparatus for internal combustion engine
Automated paperless order selection system
Data transfer system for data exchange between two operation processors
Coordinate measuring instrument and method of generating pattern data concerning shape of work to be measured