| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a group delay time adjustment circuit and a power distribution/combination circuit that enable an optional adjustment to a group delay time (slope of phase to frequency characteristic) maintaining a phase at a center frequency of a transmission line. <P>SOLUTION: A group delay time adjustment circuit 10 includes: a 3-dB hybrid circuit 20 having an input terminal 21 for receiving a signal, an isolation terminal 22 for outputting a signal, a coupling terminal 23 and a through terminal 24; a first reactance 30 with a first characteristic having one end connected to the coupling terminal 23 and the other end grounded; a second reactance 40 with the first characteristic having one end connected to the through terminal 24 and the other end grounded; and an adjustment line 50 connected to the isolation terminal 22 and set to an electrical length corresponding to the first characteristic. <P>COPYRIGHT: (C)2012,JPO&INPIT |
