Waveguide filtering antenna array based on resonant cavity in mixed resonant mode

A resonant mode and filter antenna technology, which is applied to antenna arrays, antennas, and devices that enable antennas to work in different bands at the same time, can solve the problem of radiation zeros in rare cavity antenna arrays, and achieve light weight, low processing costs, and The effect of low loss

Active Publication Date: 2021-08-06
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006]In general, in the existing work, there are many studies on the realization of cavity filter antenna arrays, but few cavity antenna arrays can produce radiation nulls

Method used

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  • Waveguide filtering antenna array based on resonant cavity in mixed resonant mode
  • Waveguide filtering antenna array based on resonant cavity in mixed resonant mode
  • Waveguide filtering antenna array based on resonant cavity in mixed resonant mode

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0033] see Figure 1 to Figure 12 As shown, the waveguide filter antenna array based on the hybrid resonance mode resonator provided in this embodiment includes a first metal block 1, a second metal block 2, a third metal block 3, a fourth metal block 4, and a fifth metal block 5. The sixth metal block 6, the seventh metal block 7, the eighth metal block 8, the slot array 11, the first rectangular resonant cavity 21, the first coupling slot 31, the second rectangular resonant cavity 41, the rectangular parallelepiped metal column 42, the second rectangular resonant cavity Two coupling slots 51, a third rectangular resonant cavity 61, a third coupling slot 71, and a waveguide excitation port 81; the slot array 11 is located at the center of the first metal block 1 and con...

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Abstract

The invention discloses a waveguide filtering antenna array based on a resonant cavity in a mixed resonant mode. The waveguide filtering antenna array comprises a first metal block, a second metal block, a third metal block, a fourth metal block, a fifth metal block, a sixth metal block, a seventh metal block and an eighth metal block, wherein a gap array is arranged in the center of the first metal block; a first rectangular resonant cavity is formed in the center of the second metal block; a first coupling slot is formed in the center of the third metal block; a second rectangular resonant cavity is formed in the center of the fourth metal block, and the center of the second rectangular resonant cavity is provided with a cuboid metal column with one end connected with the fourth metal block; a second coupling slot is formed in the center of the fifth metal block; a third rectangular resonant cavity is formed in the center of the sixth metal block; a third coupling slot is formed in the center of the seventh metal block; and the center of the eighth metal block is provided with a waveguide excitation port. Different modes are combined to improve the bandwidth of the antenna and introduce a radiation zero point, the filtering antenna designed by cavity resonance is utilized to realize the characteristic of low loss, and the whole antenna array is reliable in structure, convenient to process, high in selectivity and low in cost.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a waveguide filter antenna array based on a hybrid resonance mode resonator. Background technique [0002] Antenna arrays are widely used in wireless communication systems due to their higher gain than a single antenna element. As the microwave environment of the communication system becomes increasingly complex, the requirements for the filtering performance of the communication system are increasing day by day. Because the antenna is used as a signal transmitting and receiving device in the communication system, the integrated filtering function in the antenna can reduce the design complexity of the subsequent network. Because the cavity resonator has a high unloaded quality factor, the radiation efficiency of the antenna can be effectively improved when the cavity resonator is used to design the antenna. Introducing different resonance modes can not only increase the bandwi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q5/28H01Q21/00
CPCH01Q21/00H01Q5/28H01Q1/36
Inventor 陈付昌向凯燃
Owner SOUTH CHINA UNIV OF TECH
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