Patent ID: 7595706

Claim:
A high-frequency distribution circuit distributing to a plurality of output terminals a high-frequency signal received at an input terminal, comprising: a plurality of high-frequency lines associated with said plurality of output terminals, respectively, and each having one end connected to said input terminal; a terminator resistor associated with each high-frequency line; a switch circuit associated with each high-frequency line, and passing a high-frequency signal from the other end of an associated high-frequency line to an associated output terminal if a load circuit is connected to the associated output terminal, and grounding the other end of the associated high-frequency line via an associated terminator resistor if said load circuit is not connected to the associated output terminal; a subordinate terminator resistor associated with each switch circuit; and a subordinate switch circuit associated with each switch circuit and disposed between an associated switch circuit and an associated output terminal, and passing a high-frequency signal having passed through the associated switch circuit to the associated output terminal if said load circuit is connected to the associated output terminal, and guiding a high-frequency signal, which has leaked from the associated switch circuit, via an associated subordinate terminator resistor to a line of ground potential if said load circuit is disconnected from the associated output terminal.