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Butler matrix structure and electronic device with the butler matrix structure

A Butler matrix and microstrip technology, applied in connection devices, specific array feeding systems, circuits, etc., can solve the problems of low signal isolation, narrow bandwidth of Butler matrix, and low phase difference accuracy, and achieve signal isolation The effect of high precision, wide bandwidth and high precision of phase difference

Active Publication Date: 2019-07-26
SHENZHEN FUGUI PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above, it is necessary to provide a butler matrix structure and an electronic device with a butler matrix structure to solve the problems of narrow bandwidth, low signal isolation and low phase difference accuracy of the butler matrix

Method used

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  • Butler matrix structure and electronic device with the butler matrix structure
  • Butler matrix structure and electronic device with the butler matrix structure
  • Butler matrix structure and electronic device with the butler matrix structure

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Embodiment Construction

[0031] Please refer to figure 1 , shows a functional block diagram of the electronic device 1 in an embodiment of the present invention. The electronic device 1 includes a Butler matrix structure 2 , an antenna array 3 and a circuit board 4 . The Butler matrix structure 2 is arranged on the circuit board 4 and connected with the antenna array 3 . The Butler matrix structure 2 is used to achieve multi-beamforming. The electronic device 1 transmits or receives the multi-beams generated by the Butler matrix structure 2 through the antenna array unit 3 . In this embodiment, the circuit board 4 is a double-layer board, and the Butler matrix structure 2 is etched on the upper layer of the circuit board 4 . In this embodiment, etching the Butler matrix structure 2 on the upper layer of the circuit board 4 can avoid the problem of increased insertion loss caused by passing through the circuit board 4 when the Butler matrix structure 2 is arranged on multiple layers of the circuit b...

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Abstract

The invention relates to the field of microwave communication, and particularly relates to a Butler matrix structure and an electronic device with the Butler matrix structure. The Butler matrix structure comprises a plurality of input terminals, a plurality of output terminals, a plurality of couplers, a plurality of transposition circuits and a plurality of microstrip coupling lines, wherein theplurality of input terminals and the plurality of output terminals are connected through a network formed by the plurality of couplers, the plurality of transposition circuits and the plurality of microstrip coupling lines, each coupler is formed by connecting two microstrip lines of a square-shaped structure, and each transposition circuit is formed by connecting two couplers. Each microstrip line comprises a microstrip line body and an open-circuit zigzag branch line, and the bandwidth and phase difference of signals in the Butler matrix can be adjusted through adjusting the width, the length and the spacing of the microstrip line body and the width and the length of the open-circuit zigzag branch line. In the scheme, the Butler matrix structure has the characteristics of wide bandwidth, high signal isolation degree and high phase difference precision.

Description

technical field [0001] The invention relates to the field of microwave communication, in particular to a Butler matrix structure and an electronic device with the Butler matrix structure. Background technique [0002] In the field of microwave communications, Butler matrices are often used for beamforming. However, most of the couplers in the existing Butler matrix are single-section narrowband structures, which have low signal isolation, and the crossover circuits in the Butler matrix have no phase shift compensation and low isolation. The bandwidth of the phase shifter in the Butler matrix is ​​also narrow, and the phase difference accuracy is low. Contents of the invention [0003] In view of the above, it is necessary to provide a Butler matrix structure and an electronic device with the Butler matrix structure to solve the problems of narrow bandwidth, low signal isolation and low phase difference precision of the Butler matrix. [0004] A Butler matrix structure, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/40H01Q21/00H01P5/18H01P1/18
CPCH01P1/184H01P5/184H01Q3/40H01Q21/0006
Inventor 杜洋洋陈铁钰
Owner SHENZHEN FUGUI PRECISION IND CO LTD