Resources Contact Us Home
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
Rules-based approach to transferring and/or viewing medical images
Summarization of short comments
Hydroxyl-terminated thiocarbonate containing compounds, polymers, and copolymers, and polyurethanes and urethane acrylics made therefrom
Secondary battery pack including insulative mounting member into which PCM is inserted in lateral direction
Magnetic resonance imaging apparatus for use with radiotherapy
Mitigating single point failure of devices in an analyte monitoring system and methods thereof
  Randomly Featured Patents
Lighting fixture
Optical system for scanning
Movable fuse socket support for use on bus bars
Biasing scheme for low supply headroom applications
Method to manufacture silicon quantum islands and single-electron devices
Pre-sized fabric gift wrap
Cardiac mapping and ablation systems
Caching based on access rights in connection with a content management server system or the like
Determining programmable connections through a switchbox of a programmable logic device
Method of soldering an electronic connector on a printed circuit board