Patent ID: 8081966

Claim:
An RF circuit switching circuit, comprising: N input wirings connected to N input RF circuits (where, N is 4, 8, 16, . . . ); N output wirings connected to N output RF circuits; N/2 first RF transfer switches each of which is connected to any two of the N input wirings different from each other; N/2 second RF transfer switches each of which is connected to any two of the N output wirings different from each other; and N internal connection routes connecting between the first and second RF transfer switches, each of the routes comprising an internal wiring or a combination of a plurality of third RF transfer switches and a plurality of internal wirings, wherein each of the N input RF circuits can be connected to each of the N output RF circuits through a route comprising one input wiring, one first RF transfer switch, one second RF transfer switch, one output wiring, and one internal connection route connecting between the one first RF transfer switch and the one second RF transfer switch; and each of the N input RF circuits is connected to each of the N output RF circuits by switching the first and second RF transfer switches or switching the first, second and third RF transfer switches.