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C-band tightly-coupled array antenna

A tightly coupled array and antenna technology, applied in the field of phased array measurement and control systems, can solve the problems of difficult design, high processing cost, complex structure, etc., and achieve the effect of realizing large-angle scanning, reducing profile height, and improving radiation characteristics.

Inactive Publication Date: 2019-02-19
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Although this novel broadband phased array antenna technology has the characteristics of wide frequency band and low profile, it is difficult to design, complex in structure and high in processing cost.

Method used

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  • C-band tightly-coupled array antenna
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  • C-band tightly-coupled array antenna

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Embodiment Construction

[0024] 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.

[0025] Such as Figure 1~3 As shown, a C-band tightly coupled array antenna is composed of an antenna unit 2 , a metal base 1 and a support structure 3 . Wherein, the metal base 1 is a metal plate with a thickness of 7 mm, which plays a supporting role and provides grounding for the antenna unit 2 . 24 antenna units 2 form a row of antennas, which are made on the same microstrip dielectric board. The relative dielectric constant of the medium is 2.65 and the thickness is 1mm. The entire array consists of 24 antennas with a total of 576 a...

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Abstract

The invention discloses a C-band tightly-coupled array antenna, and belongs to the technical field of phased array measurement and control systems. The C-band tightly-coupled array antenna comprises ametal base and a plurality of antennas, and each antenna comprises a micro-ribbon dielectric plate and a plurality of antenna units arranged thereon; each antenna unit is in the form of Vivaldi; radiation chips of exponential tapered structures are arranged on the front surface of each antenna unit; microstrip feed structures of the antennas are arranged on the back surfaces of the antenna units;every two adjacent antennas are staggered by half antenna unit to form a triangular layout; the metal base provides a radio frequency ground for the antenna units. The C-band tightly-coupled array antenna has the advantages that through special design of the array antenna, the goals of wide frequency band, wide angle scanning, low profile, low weight, low design complexity, low processing difficulty, low cost and the like are realized on the premise of satisfying the performance indexes of the phased array antenna, and an important improvement is made to the prior art.

Description

technical field [0001] The invention relates to the technical field of phased array measurement and control systems, in particular to a C-band tightly coupled array antenna. Background technique [0002] In recent years, the phased array measurement and control and communication system has attracted the attention of all parties at home and abroad, and has developed rapidly. With the increase in the number and types of measurement and control and communication targets, there are higher requirements for the transmission rate, electronic countermeasure capability and multi-target capability of the measurement and control system. Therefore, the broadband integrated phased array communication system has gradually become the current phased array technology direction of development. [0003] The narrowband phased array antenna technology is becoming more and more mature. The basic idea is to use the array to make the antenna array reach the corresponding index in terms of impeda...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H01Q21/08H01Q13/08H01Q1/38H01Q1/48H01Q1/50H01Q1/52
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/523H01Q1/528H01Q13/085H01Q21/00H01Q21/08
Inventor 位朝垒郭肃丽闫腾飞
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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