| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a general-purpose high frequency receiving circuit without a limit in practical frequency band for reducing a mounting area, and estimating each circuital characteristics of an amplifying circuit and a mixer circuit. <P>SOLUTION: The high frequency receiving circuit includes an amplifying circuit 1 integrated with a constant-conductance matching circuit of output impedance of 20 mS, and a mixer circuit 3 integrated with a constant-inductance matching circuit having input impedance of 20 mS. The output side of the amplifying circuit 1 and the input side of the mixer circuit 3 are connected and the connection point thereof is connected to a power feeding terminal 6 through an inductance element. <P>COPYRIGHT: (C)2004,JPO</p> |
