Darlington structure microwave chaotic circuit and its chip, circuit module and design method

Abstract

The invention discloses a Darlington structure microwave chaotic circuit as well as a chip, circuit module and design method of the Darlington structure microwave chaotic circuit. The Darlington structure microwave chaotic circuit comprises a gain component circuit, a chaos oscillation loop, a choke ring circuit and an output isolation circuit; the gain component circuit is composed of two transistors Q1 and Q2; the emitter of Q1 is connected with the base of Q2; the two collectors of the two transistors Q1 and Q2 are connected; the two emitters of the two transistors Q1 and Q2 are connected; and the two connected collectors and the two connected emitters of the two transistors Q1 and Q2 are adopted as two independent output ports a and b of the Darlington structure microwave chaotic circuit respectively; the choke ring circuit is adopted as a constant current source bias circuit of the Darlington structure microwave chaotic circuit; one end of the choke ring circuit is connected with a negative voltage source -Vss, and the other end of the choke ring circuit is connected with the two emitters of the two transistors; the chaos oscillation loop is connected with the three poles of each transistor and is used for outputting chaotic signals to the gain component circuit; and the output isolation circuit isolates the two output ports a and b from the chaotic oscillation loop.

Description

technical field [0001] The present invention relates to a microwave chaotic circuit, in particular to a Darlington structure microwave chaotic circuit, a chip adopting the Darlington structure microwave chaotic circuit, a circuit module adopting the Darlington structure microwave chaotic circuit, the The design method of microwave chaotic circuit with Darlington structure is described. Background technique [0002] Because the chaotic signal has the characteristics of broadband, internal randomness, nonlinearity, and noise-like power spectrum, and the structure of the chaotic circuit is simple and easy to construct, the chaotic circuit is widely used in secure communication, broadband communication, spread spectrum communication, chaotic radar, electronic Confrontation and many other fields. The common structures of chaotic signal circuits include Wien bridge chaotic circuit, Chua's chaotic circuit and Colpitts chaotic circuit. The Wien bridge circuit and Chua's circuit ca...

AI Technical Summary

Problems solved by technology

[0004] This prior art Colpitts structure microwave chaotic circuit is simple and practical, but when the frequency rises, the negative resistance of the oscillation loop decreases with the decrease of the gain of transistor Q1, and the chaotic oscillation frequency and bandwidth are difficult to break through the limit

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