REFLECTION-TYPE PHASE SHIFTER HAVING REFLECTION LOADS IMPLEMENTED USING TRANSMISSION LINES AND PHASED-ARRAY RECEIVER/TRANSMITTER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a reflection-type phase shifter having a quadrature coupler with a through port and a coupled port respectively connected to reflection loads of which at least one is equivalent to a transmission line, thereby providing an easy and efficient means to change the reflection coefficient.;SOLUTION: A reflection-type phase shifter has a coupler, a first reflection load, and a second reflection load. The coupler has an input port for receiving an input signal and an isolated port to output an output signal due to a first reflected signal at a through port and a second reflected signal at a coupled port. The first reflection load reflects the first fraction of the input signal to thereby generate the first reflected signal. The second reflection load reflects the second fraction of the input signal to thereby generate the second reflected signal. In addition, at least one of the first and second reflection loads is equivalent to a transmission line.;COPYRIGHT: (C)2010,JPO&INPIT