MMIC PHASE SHIFTER USING MULTI-FOLDED LANGE COUPLERS

摘要

Relates to MMIC Phase Shifter with folds Lange coupler crisis - The invention, in particular, relates to a multi-crisis MMIC Phase Shifter-fold using a Lange coupler, and a multi-PIN diode to significantly reduce the size of the load.; And the input port is connected to the other terminal of the first switch and, π- circuit and said first switch connected to one end of the first switch group to the inventors phase shifter comprising at least one PIN diode for receiving the RF signal, and a second switch having at least one PIN diode coupled-port and through-port is connected to each output port of the first Lange coupler, and a grounded, the π- circuit of the first Lange coupler outputs a phase shift signal RF a first phase shifting unit provided with a; Receiving the phase shift of the RF signal with the series one or more of the second Lange coupler connected to output a new RF signals by performing the additional phase shift, wherein the one moving of the second Lange coupler, each of the coupled-port and through-port including a second phase shifting unit configured to comprise respective associated reflecting load, and said reflecting load, PIN diode unit comprising a capacitor and its anode is connected to the capacitor to the PIN diode and the cathode is the ground; It characterized in that comprises parts of the capacitor connected in parallel with the PIN diode parts.