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Millimeter wave amplifier matching circuit based on difference coupling line

A differential coupling and amplifying circuit technology, applied in differential amplifiers, DC-coupled DC amplifiers, amplifiers, etc., can solve the problems of large output loss, difficult layout, low self-resonant frequency of transformers, etc. The effect of increasing the self-resonant frequency

Inactive Publication Date: 2018-11-02
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art, and propose a millimeter-wave amplifier matching circuit structure based on differential coupling lines. , layout difficulties and other issues

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  • Millimeter wave amplifier matching circuit based on difference coupling line
  • Millimeter wave amplifier matching circuit based on difference coupling line
  • Millimeter wave amplifier matching circuit based on difference coupling line

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Embodiment Construction

[0021] In order to make the object, technical solution and features of the present invention clearer, specific implementation methods will be described in detail below in conjunction with the accompanying drawings.

[0022] The present invention proposes a millimeter-wave amplifier matching circuit structure based on differential coupling lines such as image 3As shown, the circuit is composed of a two-stage amplifying circuit and a matching network connected between the two-stage amplifying circuits; each stage of amplifying circuit includes an NMOS transistor, a feedback capacitor and a set of differential coupling lines; the matching network is divided into input matching Network, inter-stage matching network and output matching network; the input matching network uses a differential coupling line CP T-Line3, the inter-stage matching network includes a differential coupling line CP T-Line4 and a DC blocking capacitor C3, and the output matching network includes a differentia...

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Abstract

The invention discloses a millimeter wave amplifier matching circuit based on a difference coupling line and belongs to the fields of radio frequency and millimeter wave terahertz integrated circuit design. The circuit is composed of two stages of amplifying circuits and a matching network connected between the two stages of amplifying circuits; each amplifying circuit respectively comprises one NMOS transistor, one feedback capacitor and one group of difference coupling lines; the matching network is divided into an input matching network, an inter-stage matching network and an output matching network; the input matching network adopts a third difference coupling line, the inter-stage matching network comprises a fourth difference coupling line and a first blocking capacitor, and the output matching network comprises a fifth difference coupling line and a second blocking capacitor; and each group of difference coupling line is composed of two transmission lines which are placed in parallel and mutually coupled. The millimeter wave amplifier matching circuit can greatly increase gain while guaranteeing constant power consumption, stability is enhanced under the same conditions, andlayout area is reduced, so that performance of an amplifier is improved.

Description

technical field [0001] The invention belongs to the field of radio frequency and millimeter wave terahertz integrated circuit design, in particular to a millimeter wave amplifier matching circuit based on differential coupling lines. Background technique [0002] Since the 21st century, the explosive growth of information technology has driven the rapid development of the integrated circuit industry. On the one hand, users’ demand for communication rates is increasing rapidly, making it increasingly difficult for 2G, 3G, 4G, and WLAN communication speeds to meet user needs; on the other hand, low-frequency spectrum resources are also becoming less and less, making it difficult for some new applications Find the frequency band within that range. Under this background, the application of millimeter wave has been born. In 2009, IRTS (International Technology Roadmap for Semiconductors) defined the millimeter wave band as 10GHz to 100GHz, and the terahertz band as 100GHz to 10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/56H03F3/45H03F3/68
CPCH03F1/565H03F3/45183H03F3/68H03F2200/318
Inventor 张雷林琳王燕
Owner TSINGHUA UNIV
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