Envelope detector with graphene transistor

An envelope detector and transistor technology, applied in the direction of instruments, measuring devices, measuring electrical variables, etc., can solve the problems of low integration level, achieve good gain effect, realize source-drain ohmic contact, and strong gate control ability

Active Publication Date: 2013-01-16
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing envelope detectors, complex circuits composed of diodes or silicon-based MOS tubes are mostly used, which has the disadvantage of low integration level, and the envelope detectors based on diodes cannot provide gain

Method used

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  • Envelope detector with graphene transistor
  • Envelope detector with graphene transistor
  • Envelope detector with graphene transistor

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0021] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or elem...

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Abstract

The invention discloses an envelope detector with a graphene transistor, comprising the graphene transistor, a first inductor, a first capacitor, a second inductor, a second capacitor, an input end and an output end, wherein the graphene transistor further comprises a substrate, a transition layer, a metal wiring layer, an interlayer medium layer, connecting lines, a source electrode, a drain electrode, a grid electrode and the channel layer of a graphene membrane, the source electrode is connected with ground, the grid electrode is connected with a bias voltage, and the drain electrode is connected with a working voltage. The envelope utilizes dual polarities of the graphene membrane, and has the advantages that the structure of a circuit is simple and gain can be provided simultaneously.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to an envelope detector with a graphene transistor. Background technique [0002] A detector is a device that detects some useful information in a fluctuating signal, and is usually divided into an envelope detector and a synchronous detector. Among them, the output signal of the envelope detector corresponds to the envelope of the input signal, and is mainly used for the demodulation of the standard AM signal. In the existing envelope detectors, complex circuits composed of diodes or silicon-based MOS transistors are mostly used, which has the disadvantage of low integration level, and the envelope detectors based on diodes cannot provide gain. Contents of the invention [0003] The purpose of the present invention is to solve at least one of the above-mentioned technical drawbacks. For this reason, the object of the present invention is to propose a kind of envelope det...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00
Inventor 吕宏鸣肖柯钱鹤吴华强伍晓明
Owner TSINGHUA UNIV
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