Neutralizing bootstrap cascode amplifier suitable for millimeter-wave power amplification

A common-gate amplifier, power amplification technology, applied in power amplifiers, amplifiers with semiconductor devices/discharge tubes, DC-coupled DC amplifiers, etc., can solve problems such as poor power gain, high price, low output power, etc. , to achieve the effect of improving the output power and solving the problem of common mode stability

Inactive Publication Date: 2018-02-09
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The former improves power gain and stability by neutralizing the parasitic capacitance between the gate and drain of the transistor, but the output power is still low, while the latter improves the output power by increasing the o

Method used

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  • Neutralizing bootstrap cascode amplifier suitable for millimeter-wave power amplification
  • Neutralizing bootstrap cascode amplifier suitable for millimeter-wave power amplification
  • Neutralizing bootstrap cascode amplifier suitable for millimeter-wave power amplification

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Embodiment Construction

[0020] In order to further illustrate the technical solutions disclosed in the present invention, a detailed description will be given below in conjunction with the drawings and specific embodiments of the description.

[0021] The cascode structure device involved in the present invention is applicable to various electronic devices and equipment, including but not limited to some power consumption products and electronic testing equipment. Electronic devices mainly include optical network circuits or other communication networks, and power consumption products include mobile communication terminals, video cameras, cameras, digital cameras, portable memory chips, washing machines, dryers, copiers, fax machines, scanners, multi-function peripherals, etc. Wait. In addition, electronic devices include applications such as industrial, medical and automation equipment.

[0022] Such as figure 1 As shown, the neutralization bootstrap cascode amplifier suitable for millimeter wave ...

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Abstract

The invention discloses a neutralizing bootstrap cascode amplifier suitable for millimeter-wave power amplification. Structurally, the amplifier is formed by cascading a pair of bootstrap capacitor common-gate transistors and a pair of capacitor neutralizing common-source transistors up and down, a first neutralizing capacitor is bridged on the gate of the first common-source transistor and the drain of the second common-source transistor, and a second neutralizing capacitor is bridged on the gate of the second common-source transistor and the drain of the first common-source transistor. Bootstrap capacitance formed between the neutralizing capacitors and the source and the drain of the common-gate transistors eliminates the impact of parasitic capacitance of the drains of the common-source transistors, so that the gain and stability of the amplifier are improved; and the cascode amplifier increases the swing of an output signal without increasing the voltage swing of the transistor, so that the output power of the amplifier is improved, and the circuit is more reliable.

Description

technical field [0001] The invention belongs to a power amplifier in electronic circuit design, in particular to a radio frequency power amplifier in a millimeter wave communication system, in particular to a neutralization bootstrap cascode amplifier suitable for millimeter wave power amplification applications. Background technique [0002] In recent years, wireless communication technology has developed rapidly. In the process of communication technology development, especially millimeter wave communication technology, its position in communication is particularly important. For the E-band in the millimeter wave frequency band, including two frequency bands of 71-76GHz and 81-86GHz, it has gradually become a key role in future 5G mobile communication networks such as mobile backhaul and small communication networks. The millimeter wave signal will be severely attenuated in the atmosphere. For high-speed transmission links with a transmission rate of Gbps and above, under...

Claims

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Application Information

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IPC IPC(8): H03F3/193H03F3/21H03F3/45
CPCH03F3/193H03F3/21H03F3/45385H03F2200/451
Inventor 贺平洋赵涤燹
Owner SOUTHEAST UNIV
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