Rectification antenna
A technology of rectifier antenna and rectifier, applied in the direction of antenna, antenna parts, antenna grounding switch structure connection, etc., can solve the problems of high price and increase of overall cost, etc.
Active Publication Date: 2019-06-28
BOE TECH GRP CO LTD +1
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Problems solved by technology
In general, methods to improve sensitivity include increasing antenna gain, reducing filter and rectifier losses, and using low-noise amplifiers. Traditional rectennas are limited by antenna gain and transmission loss, so low-noise amplifiers are often used to Increase the sensitivity of electromagnetic wave detection, but the price of the low noise amplifier of the antenna is quite high, thus increasing the overall cost
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[0035] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0036] The invention provides a rectenna, figure 1 A schematic diagram of the module structure of the rectenna provided by the present invention, as figure 1 As shown, the rectifying antenna includes an antenna module 10 , a first rectifying circuit 20 , a second rectifying circuit 30 and a differential amplifier circuit 40 . Wherein, the antenna module 10 is used for receiving electromagnetic wave signals and converting them into corresponding AC signals, and may specifically include at least one receiving antenna. The first rectifying circuit 20 is configured to output a corresponding first DC signal according to the AC signal generated by the antenna module...
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The present invention provides a rectification antenna. The rectification antenna comprises: an antenna module configured to receive electromagnetic wave signals and convert the electromagnetic wave signals to corresponding alternating current signals; a first rectification circuit configured to output corresponding first direct current signals according to the alternating current signals generated by the antenna module; a second rectification circuit configured to output corresponding second direct current signals according to the alternating current signals generated by the antenna module, wherein the first direct current signals are opposite to the second direct current signals in direction; and a difference amplifying circuit configured to receive the first direct current signals and the second direct current signals and perform amplification of the difference value of the first direct current signals and the second direct current signals for output. The sensitivity of the rectification antenna can be improved.
Description
technical field [0001] The invention relates to the field of antennas, in particular to a rectenna. Background technique [0002] The rectenna is a mainstream method of electromagnetic wave detection, and improving the sensitivity of the rectenna is of great help to the effective detection of electromagnetic waves. In general, methods to improve sensitivity include increasing antenna gain, reducing filter and rectifier losses, and using low-noise amplifiers. Traditional rectennas are limited by antenna gain and transmission loss, so low-noise amplifiers are often used to Increase the sensitivity of electromagnetic wave detection, but the price of the low noise amplifier of the antenna is quite high, thus increasing the overall cost. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems in the prior art, and proposes a rectenna to improve the sensitivity of the rectenna with relatively low cost. [0004] In order to ...
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IPC IPC(8): H01Q1/50H01Q23/00G01R29/08
CPCH03F1/26H01Q1/248H03F3/45475H03F2203/45568H03F3/195H03F2203/45528H03F2203/45594H03F2200/451
Inventor 丁天伦孔祥忠王磊温垦
Owner BOE TECH GRP CO LTD