×

High-frequency switching module and its control method

  • US 7,545,759 B2
  • Filed: 02/16/2005
  • Issued: 06/09/2009
  • Est. Priority Date: 06/07/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. An method for controlling a high-frequency switchingmodule comprisinga diplexer comprising first and second filter circuits F1, F2 for dividing signals received by an antenna to a receiving signal of a first transmitting/receiving system and a receiving signal of second and third transmitting/receiving systems,a first switching circuit SW1 disposed downstream of said first filter circuit F1 for switching a transmitting circuit TX1 and a receiving circuit RX1 of said first transmitting/receiving system by voltage applied from a control circuit VC1, anda second switching circuit SW2 disposed downstream of said second filter circuit F2 for switching a transmitting circuit TX2 of said second and third transmitting/receiving systems, a receiving circuit RX2 of said second transmitting/receiving system and a receiving circuit RX3 of said third transmitting/receiving system by voltage applied from control circuits VC2, and VC3wherein the transmitting circuit TX1 of said first transmitting/receiving system in said first switching circuit SW1 is connected to said antenna by applying a positive voltage from said control circuit VC1, and further at the same time by applying a positive voltage from said control circuit VC3 in controlling a switch circuit of said high-frequency switching module for switching a second receiving circuit RX2 and a third receiving circuit RX3 by voltage applied from said control circuit VC3.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×