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Millimeter wave rectifying device implemented facing single chip

A rectifier device, millimeter wave technology, applied in electromagnetic radiation induction, instruments, induction record carriers, etc., can solve the problems of RFID can not be applied, plane rectifier circuit can not be completely transplanted, etc.

Active Publication Date: 2019-04-16
韩小西
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous development of wireless communication technology, the application scenarios of RFID make RFID more and more inclined to miniaturization. In miniaturized RFID, due to the limitation of RFID size, the existing planar rectifier circuit cannot be completely transplanted to miniaturized In RFID, if it is partially transplanted, it may lead to the inapplicability of the reduced size RFID, so it is necessary to design a rectifier circuit for smaller size RFID to ensure that the reduced size RFID can work normally

Method used

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  • Millimeter wave rectifying device implemented facing single chip
  • Millimeter wave rectifying device implemented facing single chip
  • Millimeter wave rectifying device implemented facing single chip

Examples

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Embodiment 1

[0033] Embodiment 1 of the present application proposes a millimeter-wave rectification device oriented to single-chip implementation. In the technical solution proposed in the embodiment of the present application, the millimeter-wave rectification device is set in one chip as a whole, such as figure 1 As shown, the millimeter wave rectifying device proposed in Embodiment 1 of the present application includes an antenna 101 for receiving millimeter waves, a first isolation unit 102 , a second isolation unit 103 , a rectification unit 104 and an energy storage unit 105 .

[0034] The antenna 101 is electrically connected to the first isolation unit 102 , and the antenna is configured to receive millimeter wave energy and transmit the received millimeter wave energy to the first isolation unit 102 .

[0035] The millimeter-wave energy received by the antenna is related to the size and power of the RFID. In a preferred implementation, in the technical solution proposed in this ap...

Embodiment 2

[0043] On the basis of the first embodiment above, further, the second embodiment of the present invention elaborates on the first isolation unit, as follows figure 2 As shown, the first isolation unit 102 includes at least one capacitor 201 .

[0044] Capacitor 201 is used as an energy storage element, capable of storing electric energy. The first isolation unit 201 may include multiple capacitors, or protect the capacitors through resistors, which may be determined according to the power input value of the rectifying device.

[0045] In a preferred implementation, considering the smaller size of the RFID, the first isolation unit 201 is selected to use a capacitor in the present invention, and the capacitor may be a metal-insulator-metal capacitor (MIM) capacitor, The value range of the capacitor 201 may be 0.01 picofarad to 0.2 picofarad. In the present invention, the value of the capacitor 201 is 0.1 picofarad.

[0046] Specifically, in the technical solution proposed a...

Embodiment 3

[0048] Further, on the basis of the first embodiment above, the present invention further elaborates on the second isolation unit 103, as follows image 3 As shown, the second isolation unit 103 may include at least one inductor 301 element, or other electronic components with inductive properties. No specific limitation is made here.

[0049] In this proposal, in order to adapt to the smaller size of the RFID, the second isolation unit 103 only includes an inductor 301 , and the second isolation unit 103 can further isolate the high-frequency components flowing out of the first isolation unit 102 .

[0050] Specifically, the inductance 301 can be one of layered winding inductors, and the value range of the inductance 301 is 0.1 nano-Henry to 1 nano-Henry. Preferably, in the present invention, the value of the inductance 301 is 0.5 nano-Henry. Henry.

[0051] Specifically, in the technical solution proposed by Embodiment 3 of the present invention, the inductor is a layered wi...

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Abstract

The embodiment of the invention provides a millimeter wave rectifying device implemented facing a single chip. The device comprises an antenna used for receiving millimeter waves and further comprisesa first isolation unit, a second isolation unit, a rectification unit and an energy storage unit, the first isolation unit is electrically connected with the antenna, the millimeter waves received bythe antenna are conducted, and isolation of direct-current components after rectification is achieved. The rectifying unit is used for receiving the alternating-current component transmitted by the first isolating unit, finishing rectifying and transmitting the rectifying component to the second isolating unit. The second isolation unit is electrically connected with the first isolation unit andthe rectification unit, and is used for isolating a high-frequency component in the rectification component and transmitting a direct-current component in the rectification component to the energy storage unit. The energy storage unit is used for storing the direct current transmitted by the second isolation unit and ensuring that the RFID can work normally after the size is reduced.

Description

technical field [0001] The present application relates to the technical field of rectification circuits, in particular to a millimeter-wave rectification device oriented to single-chip implementation. Background technique [0002] Radio Frequency Identification (RFID, Radio Frequency Identification) technology, also known as radio frequency identification, can identify specific targets through radio signals and read and write related data without the need for mechanical or optical contact between the identification system and specific targets. The wireless communication is realized through the antenna, and the reading or writing operation of the tag identification code and memory data can be realized. [0003] In RFID technology, the rectenna is one of the key technologies. Its main function is to convert the received microwave energy into usable DC energy. It is generally composed of a receiving antenna and a planar rectifier circuit. With the continuous development of wir...

Claims

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Application Information

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IPC IPC(8): G06K7/10
CPCG06K7/10316
Inventor 张耀辉韩小西陈小明
Owner 韩小西
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