Fig. 5


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(a). Two mutually coupled LC tanks terminated with nonlinear gain on the left and linear loss resistance on the right side where always G1 = 1.001 × G2. (b) Time domain response. (c) Frequency response of the gain-side capacitor voltage at the EPD point. (d) Real and (e) imaginary parts of the eigenfrequencies versus load capacitance perturbation ΔC2; solid line: result from ; green dashed line: Puiseux fractional power series expansion terminated to its second order; black dots are obtained from the nonlinear time domain simulation. (f) Oscillation frequency versus load capacitance perturbation for three different mismatches between gain and loss δ = 0, 0.001, 0.01: the three different gains provide the same saturated oscillation frequencies.

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