Microwave, millimeter-wave and terahertz circuits and low-power beamforming methods for phased arrays

A technology of differential quadrature and Butler matrix, applied in electric pulse generator circuits, electrical components, antennas, etc., can solve problems that are not cost-effective, and achieve the effect of resisting electromagnetic interference

Inactive Publication Date: 2017-11-14
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

It is not a cost-effective method for IC design

Method used

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  • Microwave, millimeter-wave and terahertz circuits and low-power beamforming methods for phased arrays
  • Microwave, millimeter-wave and terahertz circuits and low-power beamforming methods for phased arrays
  • Microwave, millimeter-wave and terahertz circuits and low-power beamforming methods for phased arrays

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Embodiment Construction

[0038] Now the present invention is described, as shown in the accompanying drawings, it is not the whole of the design, but only represents a part of the technical application examples of the present invention. Especially for differential quadrature signal generators and Butler matrices, the present invention only uses 4×4 and 8×8 differential Butler matrices as examples, but the method can be applied to conventional The single-ended Butler matrix has a similar structure to the n×n Butler matrix.

[0039] image 3 It is shown that the differential quadrature signal generator can be used to form a six-port network, and the single-ended signal is fed into the balun. A balun can convert a single-ended signal into a differential drive signal. It forms a six-port network with ports A1 to A6. There is good isolation between ports A1 and A2. A1 and A2 are respectively connected to differential ports 1 and 2 of the differential quadrature signal generator through a balun, and dif...

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Abstract

The invention discloses a microwave, millimeter wave and terahertz circuit and a low-power beamforming method of a phased array, specifically provides a differential quadrature signal generator suitable for millimeter wave and terahertz frequency bands, and belongs to the technical field of communication. The differential quadrature signal generator provided by the invention can be adopted by novel differential circuits such as power amplifiers, differential drive phase shifters, Butler matrices, and six-port networks. All circuits built using the techniques of the present invention have the additional advantages of low power consumption and high linearity, since they are all based on passive networks that introduce no extra power. With the circuit of the invention, its grounding device has smaller error, strong resistance to electromagnetic interference and lower loss compared with single-ended circuits.

Description

technical field [0001] The invention belongs to the field of communication technology, and relates to microwave, millimeter wave and terahertz circuits and a low-power beamforming method of a phased array, in particular to a unique differential quadrature (DQ) signal generator, and the other has a relatively wide Lange couplers with wide bandwidth and miniaturized size are widely used in MMIC designs, especially in wideband mixers and Dorhty amplifiers. Background technique [0002] Phased array radar has the advantages of multi-function, multi-target tracking and multiple working modes, etc. The play of these advantages, as well as the improvement of phased array radar's tactical performance, are largely related to the ability to form multiple beams. With the advancement of digital technology and large-scale digital and analog integrated circuit technology, digital multi-beam forming technology has begun to be applied to phased array radar products. The generation of ultra...

Claims

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Application Information

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IPC IPC(8): H03K3/02H01Q23/00
Inventor 马凯学闫宁宁
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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