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A Novel Transmissive Phased Array Antenna Based on Improved L-shaped Probe Feed Structure

A phased array antenna and transmissive technology, applied in the field of antennas, can solve the problems of complex phased unit design, high side lobe level, low mouth efficiency, etc., to avoid gain loss, improve radiation performance, and improve frequency bandwidth. Effect

Active Publication Date: 2021-03-16
CHONGQING UNIV OF POSTS & TELECOMM +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the published design of a new 1-bit transmissive phased array antenna, the design of the phased unit is complex, with large loss and narrow bandwidth
In addition, the prototype has problems such as low mouth-to-surface efficiency and high sidelobe levels

Method used

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  • A Novel Transmissive Phased Array Antenna Based on Improved L-shaped Probe Feed Structure
  • A Novel Transmissive Phased Array Antenna Based on Improved L-shaped Probe Feed Structure
  • A Novel Transmissive Phased Array Antenna Based on Improved L-shaped Probe Feed Structure

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Embodiment Construction

[0035] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0036] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to a novel transmission type phased array antenna based on an improved L-shaped probe feed structure, and belongs to the technical field of antennas. The antenna comprises a primary feed source, an antenna supporting structure and an antenna array plane; the antenna array plane is composed of a plurality of periodically arranged phase control units; each phase control unit comprises a first dielectric plate, a first metal layer, a second dielectric plate, a second metal layer, a third dielectric plate, a third metal layer, a fourth dielectric plate, a fourth metal layer,a fifth dielectric plate and a fifth metal layer from top to bottom; the second metal layer is connected with the third metal layer through a first conductor connecting rod and is connected with the fifth metal layer through a third conductor connecting rod; and the fourth metal layer is connected with the fifth metal layer through a second conductor connecting rod. According to the novel transmission type phased array antenna based on the improved L-shaped probe feed structure of the invention, the gain loss of scanning beams is reduced, the radiation performance of the antenna is improved, and the cost of a beam scanning system is reduced.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a novel transmissive phased array antenna based on an improved L-shaped probe feeding structure. Background technique [0002] As a high-gain phased antenna, the new transmissive phased array antenna has become one of the research hotspots because of its simple phase control mechanism. The phase control unit integrates controllable components, such as PIN diodes, RF MEMS switches and varactor diodes, to form a dynamic phase control mechanism with phase compensation capabilities. Compared with the reflective system, the transmissive system has no feed source shielding, the system is highly integrated, and it is easy to achieve conformality. [0003] In the design of the phase control unit of the new transmission phased array antenna, the continuous phase design based on varactor diodes or the multi-bit phase design based on switching elements has high phase quantization accuracy a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q3/38H01Q13/02H01Q21/00
CPCH01Q1/50H01Q3/38H01Q13/02H01Q21/0006
Inventor 王敏胡南谢文青陈正川
Owner CHONGQING UNIV OF POSTS & TELECOMM
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