QEX

Fig 4—Tee-network phase shifter: A) Circuit; B) LO drive current; C) RF output voltage.

LO Tee-Neiwork

LO Tee-Neiwork

LO Direct lo Transmission Line lo Quadrature Hybrid

LO Direct lo Transmission Line lo Quadrature Hybrid

LO Pi-Network

Relative LO Drive Voltage

LO Tee-Network

LO Transmission Line LO Quadrature Hybrid

LO Pi-Network

Relative LO Drive Voltage

Fig 5—Comparison of different phase shifters: A) Amplitude; B) Phase.

(A) One-Capacitor Version

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