A reconfigurable dual band mixer is provided

A mixer, dual-band technology, applied in the field of reconfigurable dual-band mixers, can solve the problems of deteriorating circuit noise, large insertion loss, low-Q characteristics of adjustable components, etc., to achieve frequency selection effect, reduce insertion loss, the effect of adjusting the DC offset

Active Publication Date: 2019-05-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

However, the adjustable components in the core circuit will introduce a large insertion loss. For the low Q characteristics of the adjustable components, especially at higher frequencies, the resulting insertion loss is unacceptable, and it will also deteriorate the noise of the circuit. Etc performance
[0014] Through the previous analysis of the existing technology, although the existing technology involves multi-band reconfigurable mixers, there are obvious shortcomings in the methods of realizing dual-band or multi-band mixers

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  • A reconfigurable dual band mixer is provided
  • A reconfigurable dual band mixer is provided
  • A reconfigurable dual band mixer is provided

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[0051] In order to be able to understand the above-mentioned objectives, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other if they do not conflict with each other.

[0052] In the following description, many specific details are explained in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from the scope described here. Therefore, the protection scope of the present invention is not disclosed below. Limitations of specific embodiments.

[0053] In view of the aforementioned shortcomings of the existing dual-frequency reconfigurable mixing method, and combined with the current research hotspot of fifth-generation (5G) cellular...

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Abstract

The invention discloses a reconfigurable dual-band mixer. The mixer comprises a load and buffer stage circuit, a switch stage circuit, a local oscillator input end matching network, an interstage matching circuit, a transconductance stage circuit and a switch frequency selection matching network circuit. The reconfigurable dual-band mixer can be switched between two different frequency bands, thetransconductance stage adopts two paths of parallel to work at different frequencies respectively, and the transconductance stage works at different frequency bands through switch switching and a biascontrol circuit; The radio frequency input matching network combines the series connection of the matching circuits with different frequency bands and the switch frequency selection network, therebyensuring that the circuit can achieve the optimal performance when working in different frequency bands.

Description

Technical field [0001] The present invention relates to the technical field of wireless communication systems, and in particular, to a reconfigurable dual-band mixer. Background technique [0002] At present, the third-generation (3G) and fourth-generation (4G) cellular mobile communication technologies have basically matured. With the surge in demand for communication, research on the fifth-generation (5G) cellular mobile communication technology has become the focus in recent years. , And the upcoming fifth-generation (5G) cellular mobile communication system will play a key role in areas such as enhanced mobile bandwidth (eMBB), high-reliability and low-latency connections (uRLLC), and massive Internet of Things (mMTC). Therefore, research based on 5G mobile communication technology is of great significance. [0003] A variety of communication standards have emerged in the development of mobile communications, such as third-generation (3G), fourth-generation (4G) cellular mobil...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03D7/14
Inventor 马凯学陈炉星孟凡易牟首先马宗琳
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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