Patents Assigned to Murata Manufacturing Co., Ltd. Nagaokakyo-shi, Japan
  • Mobile communication device and high-frequency composite unit used in the same
    Publication number: 20010027119
    Abstract: A mobile communication device, preferably in the form of a dual-band cellular phone, includes two communications systems supporting different frequency bands, such as DCS in the 1.8 GHz band and GSM in the 900 MHz band. The mobile communication device includes an antenna, a high-frequency composite unit, DCS and GSM transmitters, and DCS and GSM receivers. The high-frequency composite unit contains a diplexer, DCS and GSM high-frequency switches, DCS and GSM high-frequency filters or notch filters, and a directional coupler.
    Type: Application
    Filed: March 8, 2001
    Publication date: October 4, 2001
    Applicant: Murata Manufacturing Co., Ltd. Nagaokakyo-shi, Japan
    Inventors: Koji Furutani, Takanori Uejima, Tetsuro Harada, Yoshiki Takada, Norio Nakajima