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Beam synthesis architecture based on highly multiplexed true delay units

A delay unit and beamforming technology, applied in electrical components, space transmit diversity, radio transmission systems, etc., can solve the problem of occupying a large chip area, achieve good directionality, low overall cost, and low chip area.

Inactive Publication Date: 2019-04-09
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although they are all suitable for ultra-wideband communication systems, they will take up a lot of chip area due to the large delay time

Method used

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  • Beam synthesis architecture based on highly multiplexed true delay units
  • Beam synthesis architecture based on highly multiplexed true delay units
  • Beam synthesis architecture based on highly multiplexed true delay units

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Embodiment Construction

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0035] figure 1 It is a structural diagram of a new type of beamforming based on a highly multiplexed true delay unit according to the present invention, including a low noise amplifier module, a buffer module and a true delay module. The low noise amplifier is located at the front end of the multi-beam matrix to amplify the signal from the space and reduce the noise. The buffer compensates for insertion loss and acts as isolation. Accurate time delay is generated by horizontal and vertical delay lines to achieve a constant delay difference from adjacent antennas to the output port, thereby making up for the time difference of received signals and superimposing coherent signals in phase

[0036] figure 2 It is an expansion diagram of the novel beamfo...

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Abstract

The invention relates to a broadband beam synthesis architecture based on highly multiplexed true delay units, comprising multiple low-noise amplifier modules, multiple buffers and multiple true delayunits. The low-noise amplifier modules are located at the front end of a multi-beam matrix to amplify and reduce the noise of signals from space. The buffer modules compensate insertion loss and playan isolation role. The broadband beam synthesis architecture is characterized in that precise delay is generated through transverse and longitudinal delay lines by using multiplexed true delay units,so that constant delay difference between adjacent antennas and the output port is realized, the time difference between received signals is compensated, and coherent signals can be stacked in phase.

Description

technical field [0001] The invention is applicable to ultra-wideband wireless communication systems and MIMO systems in radar, satellite communication, military and other fields, especially in the field of broadband multi-beam forming, and also provides a new realization idea for 5G technology. Background technique [0002] The principle of beamforming is: when receiving signals, constructive interference is formed in the useful signal direction to enhance the desired signal, while destructive interference is formed at other angles to suppress interference signals, and the sensitivity of the receiver can be significantly improved. The multi-beam synthesis technology can generate multiple high-gain beams that exist simultaneously and have independent directions, and achieve coverage in a certain angle range through the joint action of multiple beams. In wireless communication, multi-channel signal interference is unavoidable and limits the quality of communication. Therefore,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08
CPCH04B7/0617H04B7/086H04B7/0897
Inventor 梁煜党艳杰张为
Owner TIANJIN UNIV