RU2010107640A - METHOD FOR GENERATION AND FREQUENCY MODULATION OF HIGH FREQUENCY SIGNALS AND DEVICE FOR ITS IMPLEMENTATION - Google Patents

Abstract

 1. A method for generating and frequency modulating a high-frequency signal, based on converting the energy of a constant voltage source into the energy of a high-frequency signal, organizing internal feedback in a non-linear element by using a bipolar non-linear element with negative differential resistance, fulfilling the excitation conditions in the form of a balance of amplitudes and phase balance, respectively determining the amplitude and frequency of the generated high-frequency signal, and conditions agreed I am a nonlinear element with a load, changing the frequency of the generated high-frequency signal by changing the phase balance, characterized in that they change the frequency of the generated high-frequency signal and implement matching conditions by changing the resistance of the bipolar non-linear element connected between the four-terminal and the load in the transverse circuit, according to the law of amplitude change low-frequency control signal, connecting an additional reactive two-terminal to the input of the four-terminal and selecting frequencies of the four-terminal characteristics from the condition of providing a stationary generation mode in the form of equal to zero the denominator of the transmission coefficient over the entire range of changes in the resistance of a two-pole nonlinear element from the amplitude of the low-frequency control signal in accordance with the following mathematical expressions:! ! where; ; ; A = 1 + rng-xnb; B = rnb + xng; x11, x21 — optimal frequency dependences of the corresponding elements of the four-terminal resistance matrix; x22 - a given frequency dependence of the corresponding element of the mat

Claims (2)

1. A method for generating and frequency modulating a high-frequency signal, based on converting the energy of a constant voltage source into the energy of a high-frequency signal, organizing internal feedback in a non-linear element by using a bipolar non-linear element with negative differential resistance, fulfilling the excitation conditions in the form of a balance of amplitudes and phase balance, respectively determining the amplitude and frequency of the generated high-frequency signal, and conditions agreed I am a nonlinear element with a load, changing the frequency of the generated high-frequency signal by changing the phase balance, characterized in that they change the frequency of the generated high-frequency signal and implement matching conditions by changing the resistance of the bipolar non-linear element connected between the four-terminal and the load in the transverse circuit, according to the law of amplitude change low-frequency control signal, connecting an additional reactive two-terminal to the input of the four-terminal and selecting frequencies of the four-terminal characteristics from the condition of providing a stationary generation mode in the form of equal to zero the denominator of the transmission coefficient over the entire range of changes in the resistance of a two-pole nonlinear element from the amplitude of the low-frequency control signal in accordance with the following mathematical expressions:

, Where

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; A = 1 + r _n gx _n b; B = r _n b + x _n g; x ₁₁ , x ₂₁ are the optimal frequency dependences of the corresponding elements of the resistance matrix of the four-terminal network x ₂₂ - a given frequency dependence of the corresponding element of the resistance matrix of a four-terminal network; r ₀ , x ₀ are the given frequency dependences of the real and imaginary components of the resistance of the additional two-terminal device; r _n , x _n - given frequency dependencies of the real and imaginary components of the load resistance; g, b are given dependences of the real and imaginary components of the conductivity of a bipolar nonlinear element on the frequency of the carrier signal and the amplitude of the low-frequency control signal. 2. Device for generating and frequency modulating a high-frequency signal, consisting of a constant voltage source, a bipolar nonlinear element with negative differential resistance, a reactive four-terminal device, a load and a low-frequency control signal source, characterized in that an additional two-terminal device is connected to the input of the reactive four-terminal device, a two-pole nonlinear element is turned on between the output of a four-terminal device and the load in the transverse circuit, the source of the low-frequency control Igna connected to a two-pole non-linear element, reactive quadripole formed as a T-fitting three-ports, the first and third two-pole made up of two series-connected parallel circuit of elements with parameters _{L 1k, C 1k, L 2k} , C 2k, the values of which defined in accordance with the following mathematical expressions:

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, Where

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; x = a ₂ c ₁ - a ₁ c ₂ ; y = a ₂ d ₁ + b ₂ c ₁ - a ₁ b ₂ -b ₁ c ₂ ; z = b ₂ d ₁ -b ₁ d ₂ ;

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; A = 1 + r _nn g _n -x _nn b _n ; B = r _nn b _n + x _nn g _n ; r _0n , x _0n are the given values of the real and imaginary components of the resistance of the additional two-terminal network at the given four frequencies ω _n = 2πf _n ; n = 1, 2, 3, 4 - frequency number; r _nn , x _nn - set values of the real and imaginary components of the load resistance at the given four frequencies; g _n , b _n - set values of the real and imaginary components of the conductivity of the bipolar nonlinear element at the specified four frequencies and four values of the amplitude of the control signal; k = 1, 3 - number of the two-terminal T-shaped connection; x _2n - the specified values of the resistance of the second two-terminal T-shaped connection at the specified four frequencies.