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Periodic oblique stub microstrip leaky wave antenna having dual working modes

A dual-working mode, leaky-wave antenna technology is applied in the direction of antenna, antenna grounding switch structure connection, radiation element structure, etc., which can solve the problems of complex feeding system and control system, small scanning range, and difficult production. High ratio, ideal gain, and easy processing

Inactive Publication Date: 2018-07-24
FOSHAN SHUNDE SUN YAT SEN UNIV RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In wireless communication applications, in applications such as radar systems, mobile communications, and aviation positioning systems, antennas that can realize beam scanning of the main beam are often required. Therefore, the technology of electronically controlled beam adjustable antennas has been fully developed in recent years. , most of the traditional beam-tunable antennas use antenna array technology to realize the beam scanning of the antenna. Scanning characteristics, has been fully developed and applied in related fields
[0003] At present, there are various designs of microstrip leaky-wave antennas, but due to the structural characteristics of microstrip leaky-wave antennas, the structure of multiple resonant units makes the size of the antenna larger, and it is difficult to manufacture. Generally, only the forward scanning of the beam can be realized. scan range is small

Method used

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  • Periodic oblique stub microstrip leaky wave antenna having dual working modes
  • Periodic oblique stub microstrip leaky wave antenna having dual working modes
  • Periodic oblique stub microstrip leaky wave antenna having dual working modes

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Embodiment Construction

[0029] refer to figure 1 , 3 and 4, a periodic oblique stub microstrip leaky wave antenna with dual working modes, including a dielectric plane 1, a metal plane 2, a feed joint, a transmission line 3 and a periodically arranged oblique stub 4.

[0030] The transmission line 3 is a straight line, each oblique stub 4 is parallel to each other, and one end of the oblique stub 4 is connected to the transmission line 3 and distributed on the same side of the transmission line 3, thereby forming a metal radiator, and the metal radiator is arranged on the medium plane 1. One side surface, the other side surface of the dielectric plane 1 is connected to the metal plane 2.

[0031] The dielectric plane 1 is made of insulating material, and the insulating material can be solid, liquid or gaseous. In this embodiment, the dielectric plane 1 uses a solid insulating material, and the dielectric plane 1 and the metal plane 2 are both rectangular planes. The length and width are respectivel...

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Abstract

The invention discloses a periodic oblique stub microstrip leaky wave antenna having dual working modes. The periodically arranged and mutually parallel oblique stubs and transmission lines are combined to form a metal radiator so that the antenna size is enabled to be obviously smaller than that of the conventional microstrip rectangular leaky wave antenna of the same working frequency band. Meanwhile, different frequency sweep characteristics are obtained according to the size relationship between the length of the oblique stubs and the space of the adjacent oblique stubs, i.e. antenna mainbeam forward scanning is realized under the condition that the oblique stubs are overlapped, and antenna main beam forward and backward scanning is realized under the condition that the oblique stubsare not overlapped.

Description

technical field [0001] The invention relates to the application field of wireless communication, in particular to a periodic oblique stub microstrip leaky wave antenna with dual working modes. Background technique [0002] In wireless communication applications, in applications such as radar systems, mobile communications, and aeronautical positioning systems, antennas that can achieve beam scanning of the main beam are often required. Therefore, the technology of electronically controlled beam tunable antennas has been fully developed in recent years. , Most of the traditional beam tunable antennas use antenna array technology to realize the beam scanning of the antenna, the antenna is bulky, the feeding system and the control system are complex, and the microstrip leaky wave antenna has its own advantages, especially the beam electronic control frequency. It has been fully developed and applied in related fields. [0003] At present, there are various designs of microstri...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q13/08
CPCH01Q1/36H01Q1/38H01Q1/50H01Q13/08
Inventor 席斌李元新赵震宇
Owner FOSHAN SHUNDE SUN YAT SEN UNIV RES INST