Dual-port feeding type array antenna

An array antenna, dual-port technology, applied in the field of dual-port feed array antenna, can solve the problem of no significant advantage in high-frequency transmission loss, and achieve the effects of avoiding processing difficulty, avoiding loss, and improving radiation efficiency

Active Publication Date: 2017-11-17
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this approach has no significant advantage in addressing high frequency band transmission loss

Method used

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  • Dual-port feeding type array antenna
  • Dual-port feeding type array antenna
  • Dual-port feeding type array antenna

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Embodiment Construction

[0025] In order to make it easier for those skilled in the art to understand the technical solution of this patent, and at the same time, in order to make the technical purpose, technical solution and beneficial effect of this patent clearer, and to fully support the protection scope of the claims, the following is a specific case in the form of this patent. The technical solution of the patent makes further and more detailed descriptions.

[0026] Such as Figure 1~3 As shown, a dual-port fed array antenna includes a radiation cavity 1 and a coaxial cavity 2 communicating with each other. The radiation cavity 1 is located directly above the coaxial cavity 2. The center of the bottom surface of the radiation cavity 1 and the coaxial cavity 2 The center of the top surface of each has a square connection port, the top surface of the radiation cavity 1 has a plurality of radiation ports 11, the coaxial cavity 2 has two waveguide input ports 21 perpendicular to each other, and the...

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Abstract

The invention discloses a dual-port feeding type array antenna, and belongs to the technical field of an antenna. The dual-port feeding type array antenna comprises a radiation cavity and a coaxial cavity which communicate with each other, a plurality of radiation ports are arranged in a top surface of the radiation cavity, the coaxial cavity is provided with two waveguide input ports perpendicular to each other, a vertical and cylindrical probe having coaxial characteristic is arranged on a bottom surface in the center of the coaxial cavity, two matching steps are arranged at the bottom of the probe and comprise a first cylinder and a second cylinder, the first cylinder and the second cylinder are coaxial to the probe, the first cylinder is directly arranged on the bottom surface of the coaxial cavity, and the second cylinder is arranged on a top surface of the first cylinder. By the dual-port feeding type array antenna, the gap opening coupling processing difficulty can be prevented, the problem of air live-line feeding loss also can be prevented, and the dual-port type array antenna is an important improvement compared with the prior art.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a dual-port feeding array antenna. Background technique [0002] In the traditional field of electronic information, there are many ways to implement broadband multi-polarized array antennas, which are specifically manifested in the following characteristics: [0003] 1. Directly feed power through the waveguide port. The technical difficulty of this method is small, and the square waveguide is directly fed through the waveguide port. [0004] The electricity is coupled through through or side wall slits to realize dual-polarized signal transmission. This method has higher requirements on the accuracy of the waveguide opening and the slot opening, and it is more difficult to realize in the case of a higher frequency band. [0005] 2. Dual polarization feed through air strip line. The core of this method is the conversion from waveguide to coaxial feed. A reflection cavity is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q21/00H01Q21/24
CPCH01Q1/36H01Q1/50H01Q21/00H01Q21/24Y02D30/70
Inventor 韩国栋高冲段永强刘扬
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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