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Millimeter wave and submillimeter wave frequency-band frequency stability measuring system and method

A frequency stability, sub-millimeter wave technology, applied in the field of frequency stability measurement system, to overcome the insufficient frequency range

Inactive Publication Date: 2012-07-25
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology

[0008] The purpose of the present invention is to develop a frequency stability measurement device based on the beat method to solve the stability measurement problem of millimeter wave and submillimeter wave frequency sources: double mixing time difference measurement system and frequency difference multiplication method measurement system in the frequency range There are limitations in this respect, it is not suitable for the measurement of the stability of millimeter wave and submillimeter wave frequency bands, and the frequency range is only 18GHz

Method used

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  • Millimeter wave and submillimeter wave frequency-band frequency stability measuring system and method
  • Millimeter wave and submillimeter wave frequency-band frequency stability measuring system and method

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Embodiment Construction

[0024] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0025] figure 1 A schematic structural diagram of a system for measuring frequency stability in millimeter wave and submillimeter wave frequency bands according to an embodiment of the present invention is shown. The system includes: local oscillator source, fundamental wave mixer, harmonic mixer, sub-harmonic mixer, first bandpass filter, second bandpass filter, third bandpass filter, first Amplifier, second amplifier, third amplifier, frequency selection switch, beater, counter, intermediate frequency reference source and computer.

[0026] The microwave output end of the local oscillator source is respectively connected with the local oscillator end of the fundamental wave mixer and the local oscillator end microwave cable of the harmonic mixer, and the frequency multiplier end of the local oscillator source is connected with the input end...

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Abstract

The invention discloses a millimeter wave and submillimeter wave frequency-band frequency stability measuring system. The system comprises a local oscillator source, a fundamental wave mixer, a harmonic mixer, a subharmonic mixer, a first band-pass filter, a second band-pass filter, a third band-pass filter, a first amplifier, a second amplifier, a third amplifier, a frequency selection switch, a beat device, a counter, an intermediate-frequency reference source and a computer. The invention further discloses a millimeter wave and submillimeter wave frequency-band frequency stability measuring method. Through the invention, the problem that the frequency band of the existing frequency stability measuring system is not enough is overcome, and the frequency stability of the millimeter wave and submillimeter wave frequency-band frequency source can be measured.

Description

technical field [0001] The present invention has developed a frequency stability measurement system and method based on the beat method, which is especially suitable for frequency stability measurement in the millimeter wave and submillimeter wave frequency range. The application of this system and method can solve the problem of millimeter wave and submillimeter wave The frequency stability measurement problem of the frequency source in the millimeter wave frequency range and the optical frequency standard. Background technique [0002] Millimeter waves are of great significance in communications, radar, guided remote sensing, frequency standard technology, radio astronomy and spectroscopy. The use of millimeter-wave frequencies in the atmospheric window enables high-capacity satellite-to-ground communications or ground-interrupted communications. Utilizing the narrow beam and low sidelobe performance of the millimeter wave antenna can realize low-elevation precision track...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/02
Inventor 阎栋梁
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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