RU2011144274A - METHOD OF AMPLITUDE-PHASE MODULATION OF A HIGH-FREQUENCY SIGNAL AND DEVICE FOR ITS IMPLEMENTATION - Google Patents

Claims (2)

1. The method of amplitude-phase modulation of a high-frequency signal, consisting in the fact that the high-frequency signal is fed to a modulator made of a four-terminal device, a controlled two-electrode nonlinear element, a source of a control low-frequency signal and load, the amplitude and phase of the high-frequency signal is changed by changing the amplitude of the control low-frequency signal to non-linear element, characterized in that the four-terminal are resistive, the non-linear element is included in the longitudinal circuit between the output and the high-frequency signal point and the four-terminal input, the load is connected to the four-terminal output, the given dependences of the ratio of the modules and the phase difference of the transfer function of the modulator in two states, determined by the two levels of the control low-frequency signal, on the frequency and the given dependences of the module and phase of the transfer function of the modulator on the amplitude of the control low-frequency signal continuously varying from one level of the control low-frequency signal to another, in a given frequency band bespechivaet by selecting the frequency characteristics of the imaginary components of the load resistances _{of n} x and the source of high frequency signal x ₀ by the following mathematical expressions:

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, where A ₀ = a ₁ (1-mcosφ); B ₀ = −m { a ₁ x ₁ cosφ + [(r ₁ + r ₀ ) a ₁ + r _n + β] sinφ} + a ₁ x ₂ ; C ₀ = -γmsinφ; D ₀ = m {[(r ₁ + r ₀ ) γ + 1] cosφ-γx ₁ sinφ} - (r ₂ + r ₀ ) γ-1; X = C ₀ a ₁ msinφ + γA ₀ (mcosφ-1); Y = C ₀ [ a ₁ (r ₀ + r ₂ ) + r _n + β] -γ (B ₀ + x ₂ A ₀ ) + {[(r ₁ + r ₀ ) γ + 1] A ₀ + a ₁ (D ₀ + x ₁ C ₀ )} sinφ + B _c cosφ]; B _c = γ (B ₀ + x ₁ A ₀ ) -C ₀ a ₁ (r ₁ + r ₀ ) -C ₀ (r _n + β); C _c = D ₀ a ₁ (r ₀ + r ₁ ) + D ₀ (r _n + β) -γx ₁ B ₀ Z = D ₀ a ₁ (r ₀ + r ₂ ) + D ₀ (r _n + β) -γx ₂ B ₀ -C _c cosφ + [x ₁ a ₁ D ₀ + B ₀ + γB ₀ (r ₁ + r ₀ )] sinφ; a ₁ = α + γr _n ;

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- the given relations of the elements of the classical transmission matrix a , b, c, d of the resistive four-terminal network; m, φ are the given dependences of the ratio of the modules and the phase difference of the transfer function on the frequency in two states of the controlled nonlinear element, determined by two levels of the control low-frequency signal, on the frequency in a given frequency band; r _1,2 , x _1,2 are the given dependences of the real and imaginary components of the resistance of a bipolar nonlinear element in two states, determined by two levels of a control low-frequency signal, on frequency; r ₀ , r _n are the given dependences of the actual components of the resistances of the source of the high-frequency signal and the load from the frequency. 2. The device for amplitude-phase modulation of a high-frequency signal, consisting of a linear four-terminal, two-electrode non-linear element, a source of a control low-frequency signal and load, an additional four-terminal made in the form of a T-shaped connection of three resistive two-terminal, a non-linear element is included in the longitudinal circuit between the output of the high-frequency signal source and the input of the quadrupole, the quadrupole is connected to the output load, wherein the load resistances imaginary components x _n and Source RF signal x ₀ are implemented in the form of reactive two-terminal two parallel-connected series resonant circuit, the values of parameters which L _1k, C _1k and L _2k, C _2k are selected using the following mathematical expression:

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, Where

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; x = a ₁ c ₂ ω ₄ - a ₂ c ₁ ω ₃ ; y = ( a ₁ d ₂ + b ₁ c ₂ ) ω ₄ - ( a ₂ d ₁ + b ₂ c ₁ ) ω ₃ ; z = b ₁ d ₂ ω ₄ -b ₂ d ₁ ω ₃ ;

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, where A ₀ = a ₁ (1-m _n cosφ _n ); B ₀ = -m _n { a ₁ x _1n cosφ _n + [(r _1n + r _0n ) a ₁ + r _нn + β] sinφ _n } + a ₁ x _2n ; C ₀ = -γm _n sinφ _n ; D ₀ = m _n {[(r _1n + r _0n ) γ + 1] cosφ _n -γx _1n sinφ _n } - (r _2n + r _0n ) γ-1; X = C ₀ a ₁ m _n sinφ _n + γA ₀ (m _n cosφ _n -1); Y = C ₀ [ a ₁ (r ₀ + r ₂ ) + r _n + β] -γ (B ₀ + x ₂ A ₀ ) + {[(r ₁ + r ₀ ) γ + 1] A ₀ + a ₁ (D ₀ + x ₁ C ₀ )} sinφ + B _c cosφ]; Z = D ₀ a ₁ (r _0n + r _2n ) + D ₀ (r _nn + β) -γx _2n B ₀ -C _c cosφ _n + [x _1n a ₁ D ₀ + B ₀ + γB ₀ (r _1n + r _0n )] sinφ _n ; a ₁ = α + γr _nn ; B _c = γ (B ₀ + x _1n A ₀ ) -C ₀ a ₁ (r _1n + r _0n ) -C ₀ (r _nn + β); C _c = D ₀ a ₁ (r _0n + r _1n ) + D ₀ (r _nn + β) -γx _1n B ₀ ;

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- given relations of elements of the classical transmission matrix

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resistive four-terminal, equal at four given frequencies ω _n = 2πf _n ; n = 1, 2, 3, 4 - frequency number; r ₁ , r ₂ , r ₃ - set resistance values of resistive two-terminal T-shaped connections; m _n , φ _n are the specified values of the ratios of the modules and the phase differences of the transfer function at four given frequencies in a given frequency band; r _{1n, 2n} , x _{1n, 2n} - set values of the real and imaginary components of the resistance of a bipolar nonlinear element in two states, determined by two levels of the control low-frequency signal, at four given frequencies; r _0n , r _nn - set values of the actual components of the resistance of the source of the high-frequency signal and load at four specified frequencies; k = 0, n is the index characterizing the real and imaginary components of the resistances of the source of the high-frequency signal and load; x _kn are the optimal values of the imaginary components of the resistances of the source of the high-frequency signal and the load at four given frequencies.