Composite high frequency component and mobile communication device including the same

A composite high frequency component constituting a part of a microwave circuit having plural signal paths corresponding to their respective frequencies, comprising:

• a diplexer including first, second, and third ports, first inductance elements, and first capacitance elements for coupling transmission signals from the plural signal paths for transmission and distributing receiving signals into said plural signal paths for reception;
• plural high frequency switches including first, second, and third ports, a first switching element, a second switching element, second inductance elements, and second capacitance elements for separating the plural signal paths into a transmission section and a reception section, respectively;
• and
• plural filters including first and second ports, a third inductance element and third capacitance elements and introduced in the signal paths;
• wherein
• the first port of the diplexer is connected to an antenna port;
• each of the second and third ports of the diplexer is connected to the first port of at least one of the plural high frequency switches;
• the second port of each of the plural high frequency switches is connected to a transmission section;
• the third port of each of the plural high frequency switches is connected to a reception section;
• each of the plural filters is connected to one of the first and second ports of a respective one of the plural high frequency switches;
• the first switching element of each of the plural high frequency switches is arranged at a second port side of a respective one of the plural high frequency switches;
• the second switch element of each of the plural high frequency switches is arranged at a third port side of a respective one of the plural high frequency switches;
• and
• said plural high frequency switches being on-off controllable with a first common controlling power supply connected to the plural high frequency switches on the transmission section sides thereof and a second common controlling power supply connected to the high frequency switches on the reception section sides thereof.