Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Persistent luminescence nanoparticles used in the form of a diagnosis agent for in vivo optical imaging
Sweetener compositions having enhanced sweetness and improved temporal and/or flavor profiles
Millimeter wave imaging method and system to detect concealed objects
Droplet generation and detection device, and droplet control device
Personalized health communication system
Motion control system and X-ray measurement apparatus
System for thermally controlling displays
  Randomly Featured Patents
Composite interposer and method for producing a composite interposer
Nonvolatile memory and method with reduced program verify by ignoring fastest and/or slowest programming bits
Power inverter
Method for the production of perfluoroalkyl phosphines and the use thereof as perfluoroalkylating reactants
Identification wristband
Medical electrical lead connector assembly
Chemical-resistant filter material
Endoscope with a working passage
Contact hole fabrication with the aid of mutually crossing sudden phase shift edges of a single phase shift mask
Sign lamp lighting transformer with protective functions