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
High density molecular memory storage with read and write capabilities
Resist underlayer film forming composition for lithography, containing aromatic fused ring-containing resin
Stool
Remote ignition system for a vehicle and method for securing a remote ignition function
Liquid-level sensor
Virtual multi-cluster clouds
Control apparatus and control method
  Randomly Featured Patents
Tailgate release handle security device
Method for electric leaf cell circuit placement and timing determination
Process for preparing magnetic recording
LDD FET with polysilicon sidewalls
Distributed processing of binary objects via message queues including a failover safeguard
Method for diagnosing endometrial cancer
Bifunctional biphenyl and process for producing bifunctional phenylene ether oligomer compound using the same
Floral covering
Aqueous-based hair dyeing composition containing a soluble bismuth salt complex and a reducing compound
Sync-signal reproducing circuit for use in television receiver