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Broadband nonlinear transmission line comb spectrum generator chip

A nonlinear transmission line, nonlinear transmission technology, applied in power oscillators, electrical components, etc., can solve the problems of large chip area, high tape-out cost, complex circuit design, etc., achieve small chip size, reduce energy reflection, The effect of high harmonic power output

Pending Publication Date: 2022-03-04
NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional frequency multipliers can generally achieve low-order frequency multiplication. For high-order frequency multiplication, the circuit design is complicated, the chip area is large, and the cost of tape-out is high.

Method used

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  • Broadband nonlinear transmission line comb spectrum generator chip
  • Broadband nonlinear transmission line comb spectrum generator chip
  • Broadband nonlinear transmission line comb spectrum generator chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The broadband nonlinear transmission line comb spectrum generator of this embodiment has a block diagram of its circuit structure as shown in figure 1 shown.

[0034] like figure 1 As shown, a broadband nonlinear comb spectrum generator chip of the present invention is composed of 40 levels of nonlinear transmission line units cascaded, and each nonlinear unit is composed of a section of high-impedance microstrip line and three base-emitter short circuits composed of transistors. In order to ensure the strong nonlinearity of the nonlinear transmission line, the variable capacitance of the three base-emitter short-connected transistors needs to be much larger than the parasitic capacitance of the microstrip line, and the characteristic impedance of the microstrip line should be greater than 75Ω.

[0035] In the present invention, the transistor base-emitter is short-circuited, the slope of the C-V curve is the largest, the faster the capacitor is charged and discharged...

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Abstract

The invention relates to a high-power broadband nonlinear transmission line comb spectrum generator chip. The comb spectrum generator chip is formed by periodically cascading 40 levels of nonlinear transmission line units, wherein each nonlinear transmission line unit consists of a high-resistance microstrip line and three transistors with base-emitter short circuits. And a certain degree of waveform compression can be realized after the radio frequency signal passes through each level of nonlinear transmission unit. After passing through a certain number of nonlinear transmission units, a series of DC-100GHz harmonic pulse signals can be obtained at an output port of the chip, and then harmonic components required in solitary waves can be filtered out through a frequency selection network to realize a high-order frequency multiplication function. The high-order frequency doubling comb spectrum generator chip is wide in working frequency, energy reflection of harmonic waves is reduced through bending and folding routing, higher harmonic wave power output and smaller chip size are achieved, and the blank of domestic high-order frequency doubling comb spectrum generator chips is filled.

Description

technical field [0001] The invention relates to a broadband nonlinear transmission line comb spectrum generator chip, which belongs to the technical field of radio frequency microwave integrated circuits of microelectronics and solid electronics. Background technique [0002] In recent years, with the rapid application of wireless communication systems in different high-end equipment such as radar and guidance, high-power, wide-band modulated signals are more conducive to information transmission. Nonlinear transmission lines are widely used in high-speed sampling oscilloscopes, time domain reflectometers, comb generators and frequency synthesizers. Nonlinear transmission line comb generators generally use high-order pulse compression technology to achieve high-order multiplication of low-frequency signals. frequency. [0003] Traditional frequency multipliers can generally achieve low-order frequency multiplication. For high-order frequency multiplication, the circuit desi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03B19/14
CPCH03B19/14
Inventor 曹军刘尧潘晓枫
Owner NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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