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Intermediate frequency module of millimeter wave signal source

A signal source and millimeter wave technology, applied in the millimeter wave field, can solve the problems of low out-of-band suppression, affecting the working stability of the signal source, poor clutter filtering effect, etc., and achieve a good promotion effect

Inactive Publication Date: 2018-07-13
HEFEI HUMP ELECTRONICS TECH DEV CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, in the process of gaining millimeter waves, filters need to be used to filter and select clutter. The filters currently used have the defects of high transmission loss and low out-of-band suppression, resulting in poor clutter filtering effect. , affecting the working stability of the signal source

Method used

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  • Intermediate frequency module of millimeter wave signal source
  • Intermediate frequency module of millimeter wave signal source

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0015] Such as figure 1 As shown, an intermediate frequency module of a millimeter wave signal source includes a first amplifying circuit 21, a mixing circuit 23 and a second amplifying circuit 22; the first amplifying circuit 21 includes two amplifiers connected in series, a filter 4 and attenuation The mixer; the mixing circuit 23 includes two amplifiers and a mixer in series; the second amplifying circuit 22 includes an amplifier, a filter 4, an attenuator and an amplifier in series; the first amplifying circuit 21 first inputs The signal is amplified and then filtered by the filter 4, and then the signal is transmitted to the attenuator. The signal after the attenuator reduces power and the amplified intermediate freq...

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Abstract

The invention discloses an intermediate frequency module of a millimeter wave signal source. The intermediate frequency module comprises a first amplification circuit, a frequency mixing circuit and asecond amplification circuit; the intermediate frequency local oscillation signal enters the frequency mixing circuit to perform frequency mixing processing with an external signal; the external signal can regulate gain amount according to the power of the intermediate local oscillation signal after entering the first amplification circuit, and enters the frequency mixing circuit to perform frequency mixing with the intermediate frequency local oscillation signal, and the frequency-mixed signal is input to the second amplification circuit; the frequency mixing signal is output from the intermediate frequency module after being processed through the second amplification circuit. The intermediate frequency module of the millimeter wave signal source disclosed by the invention has the advantages that the amplification and attenuation multiple are regulated according to the power of each of the external signal, the intermediate frequency local oscillation signal and the output signal, andthe gain amount of the millimeter wave is flexibly regulated; the noise is effectively suppressed and free from influencing the frequency of the millimeter, and the good popularization effect is provided.

Description

technical field [0001] The invention relates to the technical field of millimeter waves, in particular to an intermediate frequency module of a millimeter wave signal source. Background technique [0002] Millimeter waves are located in the wavelength range where microwaves and far-infrared waves overlap, so they have the characteristics of both spectrums; the theory and technology of millimeter waves are the extension of microwaves to high frequencies and the development of light waves to low frequencies; compared with light waves, millimeter waves When the wave propagates through the atmospheric window, the attenuation is small, and it is less affected by natural light and thermal radiation sources. It has the advantages of extremely wide bandwidth, narrow beam, less affected by climate, and easy miniaturization of components, etc., and has broad application prospects in the fields of communication, radar, remote sensing, and astronomy. In the stage of millimeter wave gen...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/68H03H1/00H04B15/00H04B1/00
CPCH03F3/68H03H1/00H03H2001/0021H04B1/005H04B15/00
Inventor 杨勇汪圣海杨光汤院春赵亮杨纯杨俊汪胜德杨忠
Owner HEFEI HUMP ELECTRONICS TECH DEV CO LTD
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