3-mm waveband receiver and application thereof

A receiver and band technology, applied in the field of 3mm band receivers, can solve the problems of poor performance of 3mm band receivers, unable to meet application requirements, unable to suppress image signals, etc., and achieve compact structure, high practicability, independent and general structure. Effect

Inactive Publication Date: 2014-10-08
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a 3mm band receiver and its application, which has good performance and low cost, and is used to sol

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  • 3-mm waveband receiver and application thereof
  • 3-mm waveband receiver and application thereof
  • 3-mm waveband receiver and application thereof

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[0074] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0075] see figure 1 , the embodiment of the present invention relates to a 3mm band receiver. It should be noted that the drawings provided in this embodiment are only to illustrate the basic concept of the present invention in a schematic way, so the drawings only show the components related to the present invention rather than the number, shape and the number of components in actual implementation. For dimension drawing, the type, quantit...

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Abstract

The invention provides a 3-mm waveband receiver and application thereof. The 3-mm waveband receiver at least comprises a receiving antenna, a low-noise amplifier, a local oscillation signal source, an orthogonal frequency mixer, an orthogonal coupler and an intermediate-frequency amplifier, wherein the receiving antenna is used for receiving radio-frequency signals; the low-noise amplifier is used for amplifying the radio-frequency signals received by the receiving antenna; the local oscillation signal source is used for generating local oscillation signals; the orthogonal frequency mixer is used for mixing the frequency of output signals of the low-noise amplifier and the frequency of the local oscillation signals generated by the local oscillation signal source, and generating and outputting two paths of orthogonal intermediate-frequency signals; the orthogonal coupler is used for performing power synthesis on the two paths of output signals of the orthogonal frequency mixer, and generating and outputting one path of single side band signals; the intermediate-frequency amplifier is used for amplifying the single side band signal outputs by the orthogonal coupler. The 3-mm waveband receiver disclosed by the invention can be used for greatly lowering the cost and the implementation difficulty and also changing the connection sequence of an I/Q output port of the orthogonal frequency mixer and two input ports of the orthogonal coupler so as to realize single side band output and well inhibit mirror image signals.

Description

technical field [0001] The invention relates to the technical field of millimeter waves, in particular to a 3mm wave band receiver and its application. Background technique [0002] Millimeter waves have good atmospheric penetration characteristics and rich spectrum resources, and have great significance and application prospects in the fields of communication, guidance, radar, and clinical medicine. Among them, the 3mm band, as an atmospheric window, has a shorter wavelength and smaller propagation attenuation, and is a hot spot in millimeter wave communication research. As an important part of the millimeter-wave system, the receiver can down-convert the high-frequency millimeter-wave signal to an intermediate frequency signal for subsequent signal processing. Therefore, the performance of the receiver (such as sensitivity, noise figure, image signal suppression ability, dynamic range, etc.) has a direct impact on the entire 3mm band millimeter wave system. [0003] The ...

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Application Information

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IPC IPC(8): H04B1/16H04B1/10
Inventor 孙朋飞吴亮孙晓玮丁金义孙芸钱蓉佟瑞王志高
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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