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Wave beam reconstructible antenna of conical pen shape

A technology for reconfiguring antennas and leaky-wave antennas, which is applied to the structural connection of antennas, antenna grounding switches, and the structural form of radiating elements. It can solve problems such as low antenna radiation efficiency, poor beam control stability, and poor antenna performance. Optimized leakage constant distribution, simple structure, and high isolation effects

Active Publication Date: 2018-03-23
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Although the antenna has the advantages of five main beam radiation directions and stable working conditions, the antenna has the following problems: 1. The antenna structure is complex, the beam control stability is poor, and the input cost is high; 2. The radiation efficiency of the antenna Not high, the bandwidth is extremely narrow, resulting in poor antenna performance

Method used

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  • Wave beam reconstructible antenna of conical pen shape
  • Wave beam reconstructible antenna of conical pen shape
  • Wave beam reconstructible antenna of conical pen shape

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Embodiment Construction

[0027] Such as figure 1 As shown in the present invention, a reconfigurable antenna with a cone shaped beam includes a cylindrical conformal array 1, a tapered dielectric rod antenna 2 and a single-pole double-throw SPDT switch 3, and the two ends of the single-pole double-throw SPDT switch 3 are respectively It is connected with the cylindrical conformal array 1 and the tapered dielectric rod antenna 2 through an SMA connector 4 .

[0028] The cylindrical conformal array 1 includes a regular dodecagonal metal column 13, 12 long slot leaky wave antennas 11 and 6 groups of π-type feed waveguides 12, and the feed ports of each group of π-type feed waveguides 12 are connected to two Adjacent long-slot leaky-wave antennas 11 are connected, and the 12 long-slot leaky-wave antennas 11 and 6 groups of π-type feed waveguides 12 jointly form a cylinder surrounding the outside of the metal post 13;

[0029] Each pair of feeding ports of the π-type feeding waveguide 12 is connected in p...

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Abstract

The invention discloses a wave beam reconstructible antenna of a conical pen shape. The antenna comprises a cylindrical conformal array (1), a tapering dielectric rod antenna (2) and an SPDT (Single Pole Double Throw) switch (3); and the two ends of the SPDT switch (3) are connected with the cylindrical conformal array (1) and the tapering dielectric rod antenna (2) via two SMA joints (2) respectively. The wave beam reconstructible antenna of the conical pen shape is simple in structure and high in flexibility and radiation efficiency and enables wave beam switching.

Description

technical field [0001] The invention belongs to the technical field of wireless communication antennas, in particular to a reconfigurable antenna with a cone-shaped beam with switchable beams and high radiation efficiency. Background technique [0002] With the rapid development of wireless communication systems, antennas, as the part that transmits or receives electromagnetic waves, play an increasingly important role. At the same time, the requirements for antennas are getting higher and higher. In order to realize the development of wireless communication system towards the direction of large capacity, multi-function and ultra-wideband, the concept of reconfigurable antenna was proposed and achieved extensive research and development. [0003] In 1983, D. Schaubert first proposed "reconfigurable antenna" in his patent. In 1999, 12 famous universities, research institutes and companies organized by the US Defense Advanced Research Projects Agency formulated and implemented...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/50H01Q25/04
Inventor 齐世山刘倩吴文
Owner NANJING UNIV OF SCI & TECH