Terahertz Active Phased Array Antenna

A phased array antenna and terahertz technology, which is applied in the field of terahertz active phased array antennas, can solve problems such as undetermined technical solutions, and achieve the effects of light weight, small feed loss, and low manufacturing cost

Active Publication Date: 2021-06-15
10TH RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, for terahertz active phased array antennas, how to correct the amplitude / phase errors generated by hardware circuit design and manufacturing, so as to achieve the best performance of terahertz active phased array antennas, has not yet been determined. Program

Method used

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  • Terahertz Active Phased Array Antenna
  • Terahertz Active Phased Array Antenna
  • Terahertz Active Phased Array Antenna

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Embodiment Construction

[0025] refer to Figure 1 to Figure 5 . In the embodiment described below, a terahertz active phased array antenna includes: a wafer-level hybrid circuit 2 sequentially connected to a terahertz antenna array 1, and an active feeding network 3, wherein: the active feeding The network 3 is connected with the artificial neural network 9 connected to the wave controller 10 and the artificial intelligence library 11, also connected with the transmission source 5 through the N times frequency multiplier 4, and the mixer 6 connected to the user's receiving terminal and its transmission through the M The local oscillator source 8 connected to the frequency multiplier 7 . It is characterized in that: in the receiving / transmitting state, the radio frequency signal sent by the transmitting source 5 is multiplied by an N frequency multiplier to the terahertz frequency band by 4, and the active feed network 3 obtains the transmitting signal in the terahertz frequency band, and the signal ...

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Abstract

A terahertz active phased array antenna disclosed by the present invention aims to provide a terahertz active phased array antenna capable of correcting dynamic errors in real time. The present invention is realized through the following technical solutions: a wafer-level hybrid circuit connected in sequence by a terahertz antenna array, an active feed network connected to an artificial neural network connected to a wave controller and an artificial intelligence library, and at the same time connected to an artificial neural network through N times The transmitter source of the frequency converter, and the mixer connected to the receiving user terminal and the local oscillator source connected through the M frequency multiplier; the active feed network obtains the transmission signal of the terahertz frequency band, and distributes it through the wafer-level hybrid circuit Perform beamforming and beam scanning for the terahertz array antenna, the active feed network sends the terahertz received signal to the mixer, and at the same time, the local oscillator signal obtained by the local oscillator source through the M frequency multiplier enters the mixer and terahertz The difference frequency mixing is performed on the received signal, and the difference frequency signal obtained with frequency variation is sent to the user receiving terminal to complete spectrum ellipsometric measurement and imaging.

Description

technical field [0001] The invention relates to a terahertz active phased array antenna in the field of electronic technology. Background technique [0002] The terahertz (THz) frequency band is defined as the electromagnetic wave band with a frequency of 0.1THz to 10THz and a wavelength of 0.03mm to 3mm, between microwave and millimeter wave and far infrared, and in the transitional frequency band from electronics to photonics. The characteristics of terahertz are mainly analyzed by electronic methods, while the optical characteristics of terahertz are mainly analyzed by photonic methods. Terahertz radiation has coherence due to its coherence mechanism, and its coherence detection can directly measure the amplitude and phase of the electric field, so the absorption coefficient and refractive index of the sample can be accurately extracted, which improves the accuracy of the measurement. Accuracy. The energy of terahertz radiation is only one tenth of the energy of X-ray p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q1/50H01Q3/36G06N3/04G06N3/08
CPCH01Q21/00H01Q1/50H01Q3/36G06N3/084G06N3/045
Inventor 何庆强
Owner 10TH RES INST OF CETC
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