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Transformer-based self-mixing frequency tripler with voltage-controlled capacitor matching

A self-mixing and transformer technology, applied in electrical components, power oscillators, etc., can solve the problems of narrow frequency tripler, large operating voltage, small gain, etc., to improve conversion efficiency, widen operating bandwidth, reduce Effect of supply voltage demand

Active Publication Date: 2021-04-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] The purpose of the present invention is to provide a transformer-based self-mixing frequency tripler with voltage-controlled capacitor matching for the problems of narrow bandwidth, large operating voltage, low efficiency and small gain of the traditional frequency tripler

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  • Transformer-based self-mixing frequency tripler with voltage-controlled capacitor matching
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  • Transformer-based self-mixing frequency tripler with voltage-controlled capacitor matching

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0026] This embodiment provides a new type of transformer-based self-mixing frequency tripler with voltage-controlled capacitance matching; this structure uses a capacitor tube to improve the impedance of the input end and widen the operating bandwidth; the double frequency is connected in the form of transformer coupling stage and self-mixing stage, which reduces the demand for power supply voltage and offsets the influence of parasitic capacitance, so that the frequency tripler can work in a low-voltage state, and has higher gain and conversion efficiency.

[0027] The circuit structure of the novel transformer-based self-mixing frequency tripler with voltage-controlled capacitor matching is as follows: figure 1 As shown, it consists of an input impedance matching network, a double frequency stage, a self-mixing stage and an output matching...

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Abstract

The invention belongs to the technical field of wireless communication, and provides a transformer-based self-mixing frequency tripler with voltage-controlled capacitor matching, which is used for solving the problems that the traditional frequency tripler is narrow in bandwidth, low in efficiency and small in gain, and needs higher working voltage. The self-frequency-mixing frequency tripler is composed of an input impedance matching network, a frequency doubling stage, a self-frequency-mixing stage and an output matching network. Firstly, variable capacitors CT1 and CT2 are used in an input impedance matching network to optimize input impedance, the working bandwidth of the self-mixing frequency tripler is effectively expanded, and 50-ohm impedance matching is achieved; secondly, through the structural design that inductors LD and LS are coupled with each other to serve as a transformer to connect the output of the second harmonic generation stage with the input of the self-mixing stage, the power supply voltage required by the device can be effectively reduced, and the conversion gain is effectively improved; in conclusion, the working bandwidth can be effectively broadened, the conversion gain can be improved, the conversion efficiency can be improved, and the power supply voltage requirement can be reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, relates to a frequency tripler, and specifically provides a transformer-based self-mixing frequency tripler with voltage-controlled capacitance matching. Background technique [0002] With the development of wireless communication technology, its application range has been extended to K-band, such as broadcast satellite communication, ultra-wideband imaging system and anti-collision radar system. In recent years, the fifth-generation (5G) wireless communication standard has also aimed at the K-band; 5G operating frequency band standards are different in different regions of the world, such as the 5G frequency band in China and Europe is 24.5 to 27.5 GHz, and the United States is 27.5 to 27.5 GHz. 28.35GHz, and 27.5 to 29.5GHz in Japan; therefore, in order to support multi-band services and multi-standard applications, ultra-wide operating bandwidth has become a huge demand for such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03B19/05
Inventor 康凯田闻搏吴韵秋赵晨曦刘辉华余益明
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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