MULTI-BAND ANTENNA SWITCHING CIRCUIT AND MULTI-BAND ANTENNA SWITCH LAMINATE MODULE COMPOSITE PART, AND COMMUNICATION EQUIPMENT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a multi-band antenna switching circuit and laminate parts capable of suppressing higher harmonic yield, and realizing miniaturization and low power consumption. SOLUTION: This multi-band antenna switch circuit is provided with a first diplexer Dip1 having a first transmission terminal and a second reception terminal and a first common terminal, a second diplexer Dip2 having a second transmission terminal and a first reception terminal and a second common terminal, and a switching circuit SW having a first transmission/reception terminal and a second transmission/reception terminal and an antenna terminal, where either the first transmission/reception terminal or the second transmission/reception terminal is switched and connected to the antenna terminal. In this case, the first common terminal is connected to the first transmission/ reception terminal, and the second common terminal is connected to the second transmission/reception terminal, and a notch filter VNF is connected between the antenna terminal and the switching circuit. Also, it is possible to provide multi-band antenna switch laminate module composite parts constituting the multi-band antenna- switching circuit.