Ultra-wideband antipodal Vivaldi antenna

An ultra-wideband and antenna technology, applied in the field of ultra-wideband antipodal Vivaldi antennas, can solve the problems of asymmetrical gain and peak shift in the pattern, and achieve good symmetry, small gain peak shift angle, and good radiation performance

Pending Publication Date: 2017-03-29
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the existing conventional antipodal Vivaldi antenna has the disadvantages of offset in the peak of the E-plane pattern, asymmetric pattern and low gain

Method used

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  • Ultra-wideband antipodal Vivaldi antenna
  • Ultra-wideband antipodal Vivaldi antenna
  • Ultra-wideband antipodal Vivaldi antenna

Examples

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, an ultra-broadband antipodal Vivaldi antenna includes a substrate 1, and the radiation patches 2 on the front and back of the substrate 1 are antipodal Vivaldi antennas with the same structure, and the two radiation patches 2 are rotationally symmetrical about the main axis radiation direction The radiation patch 2 includes a rectangular patch 5 and an arc patch 6 integrally connected from left to right to the end, and the arc patch 6 is surrounded by two exponential gradient lines, a vertical line 9 and a horizontal line 10, The two index gradient lines are respectively the inner index gradient line 7 and the outer index gradient line 8, the end of the inner index gradient line 7 is connected to one end of the vertical line 9, and the end of the vertical line 9 is connected to the outer index gradient line 8 The ends are connected by...

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Abstract

The present invention discloses an ultra-wideband antipodal Vivaldi antenna. The antenna comprises a substrate (1); radiation patches (2) at the front surface and back surface of the substrate (1) are antipodal type Vivaldi antennas of the same type; the two radiation patches (2) are in rotational symmetry relative to a principal axis radiation direction; each radiation patch (2) comprises a rectangular patch (5) and an arc-shaped patch (6) which are integrally connected end to end in a left-right direction; two exponential tapered lines, one perpendicular line and (9) and one horizontal line (10) form the arc-shaped patch (6) through enclosing; the free end of the rectangular patch (5) is flush with an edge of the substrate (1); and a trapezoidal substrate (11) extends outwards from the substrate (1) in the principal axis radiation direction. The ultra-wideband antipodal Vivaldi antenna provided by the invention has the advantages of simple feeding, wide bandwidth, good radiation directivity, low gain peak deviation angle and high frequency gain.

Description

technical field [0001] The invention relates to an ultra-wideband antipodal Vivaldi antenna, which belongs to the technical field of antennas. Background technique [0002] UWB antenna, as the key technology of UWB communication, has become a research hotspot in the field of antenna in recent years. Compared with traditional narrowband wireless communication systems, UWB wireless communication systems have many advantages and potentials such as high transmission rate, high system capacity, high positioning accuracy, low transmission power, low intercept probability, low cost, and small size. [0003] The Vivaldi antenna is a tapered slot line, end-fire traveling wave antenna, which has good broadband characteristics, directional radiation characteristics and fixed phase center, and has the advantages of simple structure, easy processing, easy feeding, and easy integration. Whether it is used alone or as an array unit, it has good performance. Therefore, the Vivaldi antenna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q9/04H01Q13/08
CPCH01Q1/38H01Q9/04H01Q13/08
Inventor 万发雨陈军
Owner NANJING UNIV OF INFORMATION SCI & TECH
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