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
Extensible framework for client-based active network measurement
System and method for managing investment funds
Co-map communication operator
Methods and devices for creating, compressing and searching binary tree
Phase locking loop
Mobile electronic device
Virtual appliance update method
  Randomly Featured Patents
Composition and method for the treatment of dysglucaemia
System and method for balancing delay of signal communication paths through well voltage adjustment
Multi cyclone dust separating apparatus
Demand deposit account data processing system
Process for micronizing materials
Vertical elevated pore phase change memory
Rotary indexing machine
Direct-current power supply with alarm indicator
RFID tag chips and tags with alternative behaviors and methods
Display poncho