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Broadband high-harmonic suppression terahertz triple-balanced frequency doubler and method

A frequency doubler and high harmonic technology, which is applied in the field of broadband high harmonic suppression terahertz triple-balanced frequency doubler, can solve the problems of not meeting the needs of terahertz test instruments and their engineering applications, and achieve Eliminate impedance matching branches, compact structure, good harmonic suppression effect

Pending Publication Date: 2020-11-24
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Affected by technology and design, the bandwidth and harmonic rejection of existing single-balanced or double-balanced frequency multipliers often cannot meet the requirements of actual terahertz test instruments and their engineering applications

Method used

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  • Broadband high-harmonic suppression terahertz triple-balanced frequency doubler and method
  • Broadband high-harmonic suppression terahertz triple-balanced frequency doubler and method
  • Broadband high-harmonic suppression terahertz triple-balanced frequency doubler and method

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Experimental program
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Embodiment 1

[0054] Such as Figure 1-3 As shown, Embodiment 1 of the present disclosure provides a novel broadband high harmonic suppression terahertz triple-balanced frequency doubler topology, such as figure 2 shown.

[0055] The topology mainly includes: 90° input bridge, which works in the fundamental frequency band, 180° input balun, which also works in the fundamental frequency band; frequency multiplier circuit 1 and frequency multiplier circuit composed of 4 interconnected diodes 2; 180° output balun, which works in the 2nd harmonic frequency band; 90° output bridge, which works in the 2nd harmonic frequency band. As shown above, the advantages of the broadband terahertz triple-balanced frequency doubler proposed in this embodiment include: all components can be realized by planar circuit technology, the structure is simple, and it is easy to integrate; Good harmonic suppression characteristics.

[0056] The input terminal of the broadband high harmonic suppression terahertz t...

Embodiment 2

[0067] Embodiment 2 of the present disclosure provides a novel broadband high harmonic suppression terahertz triple-balanced frequency doubler, using the frequency doubler provided in Embodiment 1;

[0068] The radio frequency signal enters the frequency doubler through the input terminal of bridge 1;

[0069] At the output end of bridge 1, there are two signals of 0° phase and 90° phase of equal amplitude;

[0070] The 0° phase signal enters the input terminal of balun 1, and the 90° phase signal enters the input terminal of balun 2;

[0071] At the output of balun 1, the 0° signal is divided into two signals of 0° phase and 180° phase of equal amplitude and enters the frequency multiplier circuit 1;

[0072] At the output end of Balun 2, the 90° signal is divided into two signals of 90° phase and 270° phase of equal amplitude and enters the frequency multiplier circuit 2;

[0073] After the nonlinear change of the frequency multiplier circuit and the synthesis of the balun...

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Abstract

The disclosure provides a broadband high-harmonic suppression terahertz triple-balanced frequency doubler and a method. A 0-degree output terminal of an input bridge is connected with an input terminal of a first balun, a 90-degree output terminal of the input bridge is connected with an input terminal of a second balun, two output terminals of the first balun are respectively connected with an input terminal of a first frequency multiplier circuit, and two output terminals of the second balun are respectively connected with an input terminal of a second frequency multiplier circuit; the two input terminals of a third balun are connected with the output terminal of the first frequency multiplier circuit, the two input terminals of a fourth balun are connected with the output terminal of the second frequency multiplier circuit, a 90-degree input terminal of an output bridge is connected with the output terminal of the third balun, and the 0-degree input terminal of the output bridge isconnected with the output terminal of the fourth balun. On the premise that the bandwidth performance is not deteriorated, the suppression degree of the third harmonic component of the terahertz frequency doubler is improved, crosstalk between input / output ports is reduced, and then the harmonic suppression ratio is increased.

Description

technical field [0001] The present disclosure relates to the technical field of frequency multipliers, in particular to a broadband high harmonic suppression terahertz triple-balanced frequency doubler and a method thereof. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] With the increase in the frequency of terahertz scientific research and engineering applications, especially when the frequency is above 1.0THz, the number of solid-state terahertz sources based on the frequency multiplication cascade structure is increasing, and the frequency multiplication factor is also increasing. The larger the , the harmonic rejection ratio of traditional single-balanced or double-balanced frequency multiplier circuits can no longer meet the requirements of terahertz sources. Therefore, it is very necessary to study how to improve the performance ...

Claims

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Application Information

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IPC IPC(8): H03B19/16H03B1/04H03D7/14
CPCH03B19/16H03B1/04H03D7/1408
Inventor 张胜洲邓建钦贾定宏梁晓林王沫朱伟峰姜万顺年夫顺
Owner CHINA ELECTRONIS TECH INSTR CO LTD