A terahertz frequency band local oscillator based on the integrated structure of frequency doubling links

A terahertz and frequency doubling chain technology, applied in the field of local oscillator sources in the terahertz frequency band, can solve the problems of inconvenience, standing wave, large size, etc., and achieve the effect of improving standing wave performance, improving performance, and overcoming reflection.

Active Publication Date: 2017-12-12
NAT SPACE SCI CENT CAS
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Problems solved by technology

However, considering that when the frequency exceeds 100GHz, when different modules are fixedly connected, there will be reflections between the port surfaces due to connection problems. Even a small installation error will cause serious standing waves, which will affect the performance of the entire receiver front-end
At the same time, since each frequency multiplier circuit is an independent module, the volume after cascading is also large and inconvenient to use

Method used

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  • A terahertz frequency band local oscillator based on the integrated structure of frequency doubling links
  • A terahertz frequency band local oscillator based on the integrated structure of frequency doubling links

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Embodiment Construction

[0024] A terahertz frequency band local oscillator based on the integrated structure of frequency doubling links according to the present invention will be described in detail below with reference to the drawings and embodiments.

[0025] With reference to the terahertz frequency band local oscillator source shown in 1 and 2, the present invention provides a terahertz frequency band local oscillator source based on the integrated structure of frequency doubling links. The local oscillator source includes: an upper cavity 1 and a lower cavity body 2;

[0026] The upper cavity 1 includes: the first Y-junction 3, the first double frequency 5, the third double frequency 7, the third Y-junction 9, the fifth double frequency 11, the first input waveguide port 13 and the first output waveguide port 15;

[0027] The lower cavity 2 includes: the second Y-junction 4, the second double frequency 6, the fourth double frequency 8, the fourth Y-junction 10, the sixth double frequency 12, t...

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Abstract

The invention provides a terahertz frequency band local oscillator based on the integrated structure of frequency multiplication links, comprising an upper cavity (1) and a lower cavity (2); the surface of the upper cavity (1) and the lower cavity After the surfaces of the cavity (2) are closely attached, an input port (22), a Y-shaped power divider (17), a first pre-stage frequency doubler (19), a second pre-stage frequency doubler (20 ), a Y-type combiner (18), a post-stage frequency doubler (21) and an output port (23). On the basis of the balanced frequency doubler circuit, the above-mentioned local oscillator integrates the two-stage frequency doubler circuit into the same cavity module. While making the structure compact, it overcomes the reflection caused by the connection of different modules due to the port surface, and improves The performance of frequency doubling is improved, so that the W-band source can be frequency-multiplied to the terahertz frequency band to obtain greater output power.

Description

technical field [0001] The invention relates to the technical field of local oscillators, in particular to a local oscillator in the terahertz frequency band based on an integrated structure of frequency multiplication links. Background technique [0002] Terahertz waves are located between microwaves and infrared, and are electromagnetic waves with frequencies in the range of 0.1THz to 10THz. Since the 1920s, people have gradually recognized and carried out research on terahertz technology. After a certain amount of technology accumulation, there has been an upsurge in research and development in the past ten years. In 2004, the U.S. government rated terahertz technology as one of the "Ten Technologies That Will Change the Future World"; the following year, my country also held the "Xiangshan Science and Technology Conference" to formulate a development plan for terahertz technology. At present, universities, enterprises and research institutions in many countries around t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03B19/00
Inventor 孟进张德海蒋长宏赵鑫
Owner NAT SPACE SCI CENT CAS
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