High-frequency compound switch module and communication terminal using it

A high-frequency compound switch module adaptable for at least three different communication systems, including a first communication system, a second communication system and a third communication system,

• said switch module having a switch unit for switching connection of a signal from an antenna to any of transmission circuits and reception circuits of said first and said third communication systems based on a signal from a control terminal,
• said first communication system comprising:
• a first filter provided on a first reception circuit side, for filtering out a first reception signal;
• and
• a first phase shift line provided between said first filter and said switch unit,
• said second communication system comprising:
• a second phase shift line provided between said switch unit and said first phase shift line;
• and
• a branching filter provided in series to said second phase shift line for branching a signal from said second phase shift line into a second transmission signal and a second reception signal, and
• said third communication system comprising:
• a terminal for connection of one end of said switch unit to a third transmission circuit;
• and
• a third filter for filtering out a third reception signal,
• wherein
• said switch unit also switches a third transmission signal and a third reception signal, and
• said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.

A high-frequency compound switch module adaptable for at least four different communication systems, including a first communication system, a second communication system, a third communication system and a fourth communication system,

• said switch module having a switch unit for switching connection of a signal from an antenna to any of transmission circuits and reception circuits of said first through said fourth communication systems based on a signal from a control terminal,
• said first communication system comprising:
• said switch unit for switching connection of the signal from said antenna to any of the transmission circuit and the reception circuit of said first communication system;
• a first filter provided on a reception circuit side for filtering out a first reception signal;
• and
• a first phase shift line provided between said first filter and said switch unit,
• said second communication system comprising:
• a second phase shift line provided between said switch unit and said first phase shift line;
• and
• a branching filter provided in series to said second phase shift line for branching a signal from said second phase shift line into a second trans mission signal and a second reception signal,
• said third communication system comprising:
• a terminal for connection of one end of said switch unit to a third transmission circuit;
• and
• a third filter for filtering out a third reception signal, and
• said fourth communication system comprising:
• a terminal for connection to said third transmission circuit;
• and
• a fourth filter for filtering out a fourth reception signal,
• wherein
• said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.

A high-frequency compound switch module adaptable for at least two different communication systems, including a first communication system and a second communication system,

• said switch module having a diplexer for branching a signal from an antenna and also combining transmission signals and reception signals of said first communication system and said second communication system,
• said first communication system comprising a switch unit for switching connection of a signal from said diplexer to one of a transmission circuit and a reception circuit of said first communication system based on a signal from a control terminal, and
• said second communication system comprising a branching filter for branching another signal from said diplexer into a second transmission signal and a second reception signal,
• wherein
• said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.

A high-frequency compound switch module adaptable for at least three different communication systems, including a first communication system, a second communication system and a third communication systems, said switch module having:

• a first switch unit for switching connection of a signal from an antenna to any of transmission circuits and reception circuits of said first and said third communication systems based on a signal from a control terminal;
• and
• a diplexer connected to said first switch unit for combining and branching transmission signals and reception signals of said first communication system and said second communication system,
• said first communication system comprising a second switch unit for switching connection of a signal from said diplexer to one of a transmission circuit and a reception circuit of said first communication system based on a signal from the control terminal,
• said second communication system comprising a branching filter for branching another signal from said diplexer into a second transmission signal and a second reception signal, and
• said third communication system comprising:
• a terminal for connection of one end of said first switch unit to a third transmission circuit;
• and
• another terminal for connection of another end of said first switch unit to a third reception circuit,
• wherein
• said first switch unit also switches a third transmission signal and a third reception signal, and
• said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.

A high-frequency compound switch module adaptable for at least four different communication systems, including a first communication system, a second communication system, a third communication system and a fourth communication system, said switch module having:

• a first switch unit for switching connection of a signal from an antenna to any of transmission circuits and reception circuits of said first and said fourth communication systems based on a signal from a control terminal;
• and
• a diplexer connected to said first switch unit for combining and branching transmission signals and reception signals of said first communication system and said second communication system,
• said first communication system comprising a second switch unit for switching connection of a signal from said diplexer to one of a transmission circuit and a reception circuit of said first communication system based on a signal from the control terminal,
• said second communication system comprising a branching filter for branching another signal from said diplexer into a second transmission signal and a second reception signal,
• said third communication system comprising:
• a terminal for connection of one end of said first switch unit to a third transmission circuit;
• and
• another terminal for connection of another end of said first switch unit to a third reception circuit, and
• said fourth communication system comprising:
• a terminal for connection of still another end of said first switch unit to a fourth transmission circuit;
• and
• another terminal for connection of yet another end of said first switch unit to a fourth reception circuit,
• wherein
• said first switch unit also switches any of third and fourth transmission signals and third and fourth reception signals, and
• said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.

A high-frequency compound switch module adaptable for at least three different communication systems, including a first communication system, a second communication system and a third communication system,

• said switch module having a first switch unit for switching connection of a signal from an antenna to any of transmission circuits and reception circuits of said first and said third communication systems based on a signal from a control terminal,
• said first communication system comprising:
• said first switch unit for also switching connection of a signal from the antenna to any of the transmission circuit and the reception circuit of said first communication system;
• a first filter provided on the reception circuit side, for filtering out a first reception signal;
• and
• a first phase shift line provided between said first filter and said first switch unit,
• said third communication system comprising:
• a terminal for connection of one end of said first switch unit to a third transmission circuit;
• and
• a third filter for filtering out a third reception signal, and
• said second communication system comprising:
• a second switch unit connected between said first switch unit and said antenna, for switching the signal from said antenna to any of a transmission circuit and a reception circuit of said second communication system based on a signal from the control terminal;
• a second phase shift line connected in series to said second switch unit;
• and
• a second branching filter connected in series to said second phase shift line for branching a second transmission signal and a second reception signal,
• wherein
• said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.

A high-frequency compound switch module adaptable for at least four different communication systems, including a first communication system, a second communication system, a third communication system and a fourth communication system,

• said switch module having a first switch unit for switching connection of a signal from an antenna to any of transmission circuits and reception circuits of said first, said third and said fourth communication systems based on a signal from a control terminal,
• said first communication system comprising:
• said first switch unit for switching connection of the signal from the antenna to any of the transmission circuit and the reception circuit of said first communication system;
• a first filter provided on a reception circuit side for filtering out a first reception signal;
• and
• a first phase shift line provided between said first filter and said first switch unit,
• said third communication system comprising:
• a terminal for connection of one end of said first switch unit to a third transmission circuit;
• and
• a third filter for filtering out a third reception signal,
• said fourth communication system comprising:
• switching between a fourth transmission signal and a fourth reception signal with said first switch unit;
• a terminal for connection of another end of said first switch unit to a fourth transmission circuit;
• and
• a fourth filter for filtering out the fourth reception signal, and
• said second communication system comprising:
• a second switch unit connected between said first switch unit and said antenna, for switching the signal from said antenna to any of a transmission circuit and a reception circuit of said second communication system based on a signal from the control terminal;
• a second phase shift line connected in series to said second switch unit;
• and
• a second branching filter connected in series to said second phase shift line for branching a second transmission signal and a second reception signal,
• wherein
• said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.

A high-frequency compound switch module adaptable for at least three different communication systems, including a first communication system, a second communication system and a third communication system,

• said switch module having a diplexer for splitting a signal from an antenna,
• said first communication system comprising:
• a first switch unit for switching connection of a signal from said diplexer to one of a transmission circuit and a reception circuit of said first communication system based on a signal from a control terminal;
• a first filter provided on the reception circuit side, for filtering out a first reception signal;
• and
• a first phase shift line provided between said first filter and said first switch unit,
• said third communication system comprising:
• a second switch unit for switching connection of another signal from said diplexer to one of a transmission circuit and a reception circuit of said third communication system based on a signal from the control terminal;
• a second filter provided on the reception circuit side, for filtering out a third reception signal;
• and
• a transmission terminal connected to a third transmission circuit, and
• said second communication system comprising:
• said second switch unit for switching the signal from said antenna to any of a transmission circuit and a reception circuit of said second communication system based on a signal from the control terminal;
• a second phase shift line connected in series to said second switch unit;
• and
• a second branching filter connected in series to said second phase shift line for branching a second transmission signal and a second reception signal,
• wherein
• said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.