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Crack wave guide antenna

A waveguide antenna and crack technology, applied in leaky waveguide antennas, circuits, etc., can solve the problem of large difference in signal strength, and achieve the effect of uniform signal radiation intensity and uniform coverage

Active Publication Date: 2015-04-29
中电科微波通信(上海)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem that the input end signal and the terminal signal strength of the slotted waveguide antenna are greatly different, the invention proposes a slotted waveguide antenna capable of achieving uniform coverage of electromagnetic waves

Method used

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Experimental program
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Embodiment 1

[0029] figure 1 is a schematic structural diagram of the slot waveguide antenna in Embodiment 1 of the present invention. Such as figure 1 As shown: the slotted waveguide antenna 10 is composed of a waveguide coaxial conversion 101, a waveguide load 105, and three slotted waveguides 102, 103, and 104 with the same external dimensions but different slotting parameters. The slotted waveguides have the same structure and composition. Take the cracked waveguide 102 as an example for illustration: the cracked waveguide 102 is composed of a waveguide 102a and flanges 102b at both ends, the waveguide 102a is composed of a pipe 201 and a plurality of cracks 202, and the cracks 202 are located on one side of the broadside of the pipe 201, The slits are long waist-shaped; there are 10-12 slotted waveguides 102, 8-10 slotted waveguides 103, and 6-8 slotted waveguides 103 in total. A number of slotted waveguides with the same slotting parameters constitute a section. The entire slotte...

Embodiment 2

[0033] image 3 It is a schematic diagram of the variation of slot parameters of the slot waveguide antenna in the second embodiment of the present invention. Such as image 3 As shown, in the slot waveguide 201 of the slot waveguide antenna 20, the inner dimension of the broadside is a 20 , the inner dimension of the narrow side is b 20 . The shape of the slit is long and waist-shaped. In the slit parameters, every three cracks are used as a group. Among them, the distance between the slots d remains unchanged, the distance m between the cracks and the center line of the slot surface remains unchanged, and the signal is along the A terminal. (Waveguide coaxial conversion end) to B end (waveguide load end) direction transmission, at this time, L 21 22 23 , W 21 22 23 , it can be seen that the size of the crack in the slot opening parameter gradually changes along the transmission direction of the signal.

Embodiment 3

[0035] Figure 4 It is a schematic diagram of the slot parameter variation of the slot waveguide antenna in the third embodiment of the present invention. Such as Figure 4 As shown, in the slot waveguide 301 of the slot waveguide antenna 30, the inner dimension of the broadside is a 30 , the inner dimension of the narrow side is b 30 . The shape of the slit is long and waist-shaped. In the slit parameters, every three slits are used as a group. Among them, the slit spacing d remains unchanged, the slit length L remains unchanged, and the slit width W remains unchanged. The signal is along the A terminal (Waveguide coaxial conversion end) to B end (waveguide load end) direction transmission, at this time, the distance m that the crack deviates from the centerline of the crack surface 31 >m 32 >m 33 , it can be seen that the position of the crack in the slotting parameter gradually changes along the transmission direction of the signal.

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Abstract

The invention provides a crack wave guide antenna capable of realizing uniform coverage of electromagnetic wave signals. The crack wave guide antenna is provided with at least one crack wave guide pipe used for transmitting electromagnetic wave signals within a special frequency range, a plurality of cracks used for mutually transmitting the signals between the crack wave guide pipe and an external space are arranged on the surface of the crack wave guide pipe, the crack wave guide antenna is characterized in that the crack is formed according to a plurality of slotting parameters, the slotting parameters change along the signal transmission direction, and the crack wave guide antenna disclosed by the invention can control the electromagnetic wave signals within a certain range and can guarantee the uniformity and stability of the electromagnetic wave signals during the transmission process by adjusting the slotting parameters of the cracks.

Description

technical field [0001] The invention relates to the field of wireless signal transmission, in particular to a slotted waveguide antenna capable of realizing uniform coverage of electromagnetic wave signals. Background technique [0002] With the development of wireless technology, the application of wireless communication technology is becoming more and more extensive. In wireless communication systems, the most commonly used signal transmission method is to directly use free space to transmit signals. This method has the advantages of convenient antenna installation and strong flexibility. , cost-effective and other characteristics. However, since the signal is directly transmitted in free space, it is very susceptible to interference from external signals. Affected by the environment and multipath effects, the distribution of signals in space also shows great inhomogeneity (that is, unstationary), and there are also problems in information security. [0003] In occasions...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/22
Inventor 陈俊华倪文俊
Owner 中电科微波通信(上海)股份有限公司