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Inductors that can be miniaturized

A technology of inductance and spiral inductance, which is applied in the field of inductance, can solve the problem of increasing circuit power consumption, and achieve the effect of large inductance value, low power consumption, and small occupied area

Inactive Publication Date: 2017-06-06
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for active inductors, if you want to obtain a larger inductance value, it will increase the power consumption of the circuit

Method used

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  • Inductors that can be miniaturized
  • Inductors that can be miniaturized
  • Inductors that can be miniaturized

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Embodiment Construction

[0019] In order to make the object, technical scheme and advantages of the present invention clearer, the following in conjunction with the attached

[0020] Figure, the present invention is described in further detail.

[0021] Such as figure 1 shown, the inductor consists of: a first bipolar transistor (Q1), a second bipolar transistor (Q2), a spiral inductor (L f ), the first MOS transistor (M1), the second MOS transistor (M2), wherein the base of the first bipolar transistor (Q1) is connected to the drain of the first MOS transistor (M1) and the spiral inductor (L f ), the collector of the first bipolar transistor (Q1) is connected to the base of the second bipolar transistor (Q2) and the source of the second MOS transistor (M2), and the second bipolar transistor (Q2) is connected to the emitter of the spiral inductor (L f ) of the second terminal; the gate of the first MOS transistor (M1) and the gate of the second MOS transistor (M2) are respectively connected to the ...

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Abstract

The present invention provides an inductance that can be miniaturized, including: a first bipolar transistor (Q1), a second bipolar transistor (Q2), a spiral inductor (Lf), a first MOS transistor (M1), and a second bipolar transistor (Q2). Two MOS tubes (M2). The invention combines the advantages of spiral inductance and transistor synthetic inductance (active inductance), can obtain large inductance value, and the inductance value can be adjusted, occupies small area, has high quality factor and low power consumption.

Description

technical field [0001] The invention relates to the fields of radio frequency devices and integrated circuits, in particular to an inductor. Background technique [0002] Inductive components are often used in radio frequency integrated circuits, and inductance is used in input and output matching technology to achieve maximum power transmission. The inductance used in the frequency compensation technology can expand the bandwidth range of the amplifier and improve the gain flatness of the amplifier, and the parallel peaking technology based on the inductance can improve the gain of the low noise amplifier, power amplifier and mixer. In addition, inductors are widely used in filters and oscillators. It can be said that radio frequency integrated circuits are inseparable from inductive components. [0003] Spiral inductors are generally used in radio frequency integrated circuits. Spiral inductors are ideal in terms of linearity, noise performance, and power consumption. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H11/02H03H11/04
CPCH03H11/48
Inventor 赵彦晓张万荣谢红云高栋赵飞义
Owner BEIJING UNIV OF TECH