Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Duplexer and elastic wave device










Image Number 3 for United States Patent #7924118.

In a duplexer, a transmission elastic wave filter and a reception elastic wave filter are mounted on a laminated substrate, a coil connected between an antenna terminal and a ground potential is provided on the laminated substrate, the reception elastic wave filter has first and second ground pads connected to ground potentials of IDTs connected to first and second balanced terminals, the distance between the second ground pad and the coil is greater than the distance between the first ground pad and the coil, and an inductance component in a conductive path E connecting the second ground pad to the second ground terminal is less than an inductance component in a conductive path D connecting the first ground pad to the first ground terminal, so as to improve isolation characteristics between first and second balanced terminals of a reception filter chip.








 
 
  Recently Added Patents
Powder for layerwise manufacturing of objects
MOS resistor apparatus and methods
Method for manufacturing and reoxidizing a TiN/Ta.sub.2O.sub.5/TiN capacitor
Methods and compositions to treat and detect misfolded-SOD1 mediated diseases
Communicating channel state information using predictive vector quantization
Solid-state imaging device
Light-emitting device with a spacer at bottom surface
  Randomly Featured Patents
Method of making solar cell with multiple-metal contacts
Printed antenna
Apparatus for the surgical correction of ametropia of one or both eyes of living beings
N-benzyl substituted pyridyl porphyrin compounds and methods of use thereof
Z-axis processor power delivery system
Technique for controlling memoryful non-linearities
Water saving apparatus
Tanks for transporting liquids
Method and composition for producing a cellular allogeneic vaccine
Power conversion and regulation system