Single-chip low-noise amplifier

A low-noise amplifier and amplifier technology, which is applied in the field of manufacturing and integrated circuit design, can solve problems such as unstable circuit operation, and achieve the effects of good matching, stable performance, and wide operating frequency band

Active Publication Date: 2015-06-03
成都雷电微力科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An important and difficult point in the design of low-noise amplifiers is the stability of the circuit. Because of the high gain and noise in the lower frequency band, it is easy to cause low-frequency oscillations and make the entire circuit unstable.

Method used

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Embodiment 1

[0019] Such as figure 1 Attach figure 2 Show, the single -chip low noise amplifier of this embodiment, which integrates an input matching circuit 2 on the single chip 1, the input terminal of the input matching circuit connects the external signal input source.3. Output matching circuit 4 output output.The amplifier passed through the intermediate matching circuit 7 in order, the first -stage transistor amplifier 3.1, the second -stage transistor amplifier 3.2, the third -level transistor amplifier 3.3, and the fourth -level transistor amplifier 3.46. The collector and base of the triode 5 are connected to the supply terminal through the third -level RC filter circuit 6, respectively.Ground.

[0020] This embodiment is made of MMIC process. The actual application of a single chip low noise amplifier is completely compatible with the MMIC process.VG1 ~ VG4 power supply uses a three -level RC filter circuit 6, which are based on 80 ~ 100GHz, 30 ~ 90GHz, 10 ~ 40GHz, and then filter w...

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Abstract

The invention relates to the technical field of integrated circuit design and manufacture, in particular to a single-chip low-noise amplifier widely applied to various radar assemblies of W waveband millimeter waves and a communication system. An input matching circuit is integrated on a single chip of the single-chip low-noise amplifier, an input end of the input matching circuit is connected with an external signal input source, an output end of the input matching circuit is output outwards after sequentially in series connection with a four-stage transistor amplifier and an output matching circuit. The four-stage transistor amplifier comprises a first-stage transistor amplifier, a second-stage transistor amplifier, a third-stage transistor amplifier and a fourth-stage transistor amplifier which are in series connection sequentially. The single-chip low-noise amplifier can be widely applied to the fields of various W-waveband radar assemblies and the millimeter wave communication system, a working frequency band of the single-chip low-noise amplifier is wide, full-band performance is stable, and amplification circuits of every stage can achieve good matching between optimal noises and input standing waves simultaneously.

Description

Technical field [0001] The invention involves the field of integrated circuit design and manufacturing technology, which specially involves a low noise amplifier that is widely used in various types of radar components and millimeter wave communication systems in W -band. Background technique [0002] Low noise amplifiers are key components of high -sensitivity receivers in the fields of satellite communication, radar communication and other fields. Through low noise amplifiers, the sensitivity of the receiver is improved. [0003] Single microwave integrated circuits (MMIC), due to its small circuit loss, low noise, frequency bandwidth, large dynamic range, large power, high additional efficiency, strong anti -electromagnetic radiation capacity, etc.One of the best choices.The W -band low -noise amplifier with MMIC technology technology is widely used in military and civilian purposes such as wireless communication, radar and millimeter -wave imaging.One of the key points and di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/42
Inventor 管玉静袁野付汀
Owner 成都雷电微力科技股份有限公司
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