Patent ID: 6442376
Filing Date: 2002-08-27
Classification: H01P,H03H,H04B

Abstract:
A composite high frequency component, comprising:a first high frequency switch having a first common port and first, second, and third communication ports, wherein: the first communication port is operable to connect to respective transmitting sections of first and second communication systems which operate in substantially the same frequency band, the second communication port is operable to connect to a receiving section of the first communication system, the third communication port is operable to connect to a receiving section of the second communication system, and the first high frequency switch has a transfer characteristic for passing signals between the first common port and the first, second and third communication ports which are in the frequency band of the first and second communication systems as a function of at least one first control signal; a second high frequency switch having a second common port and fourth and fifth communication ports, wherein: the fourth communication port is operable to connect to a transmitting section of a third communication system which operates in a different frequency band than the first and second communication systems, the fifth communication port is operable to connect to a receiving section of the third communication system, and the second high frequency switch has a transfer characteristic for passing signals between the second common port and the fourth and fifth communication ports which are in the frequency band of the third communication system as a function of at least one second control signal; a first filter having a transfer characteristic for passing signals in the frequency band of the first and second communication systems, one end of the first filter being coupled to the first common port of the first high frequency switch; a second filter having a transfer characteristic for passing signals in the frequency band of the third communication system, one end of the second filter being coupled to the second common port of the second high frequency switch; and a diplexer having a third common port and first and second input/output ports, wherein: the third common port is operable to at least one of receive and transmit signals from an antenna, the first input/output port is coupled to an opposite end of the first filter, the second input/output port is coupled to an opposite end of the second filter, and the diplexer has a transfer characteristic for passing signals: (i) between the third common port and the first input/output port which are in the frequency band of the first and second communication systems, and (ii) between the third common port and the second input/output port which are in the frequency band of the third communication system.