A Compact Frequency- and Power-Dividing Ratio-Tunable Quadrature Coupler

Table 1

Circuit parameters for the proposed quadrature coupler (Ω).

Parameter	Value	Parameter	Value
Z1 (Ω)	50		-14~6.0 dB (3E-1.9~4)
θ1 (°)	45	C1 (pF)	0.3~2.5
Z2 (Ω)	150	C2 (pF)	0.3~2.5
θ2 (°)	1	C3 (pF)	0.4~2.2
Z3 (Ω)	150	f (GHz)	2.0~4.7 ()
θ3 (°)	5