Balanced Pair Tovivaldi Antenna Using Asymmetric Dielectric Rejection and Hybrid Slot

An asymmetric and hybrid technology, applied in the direction of the antenna, antenna grounding switch structure connection, electrical components, etc., can solve the problem of the main lobe offset of the E-plane of the antenna, achieve low side lobe level, retain radiation performance, and solve the problem of feedback. Effects of electrical problems

Active Publication Date: 2019-04-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims to solve the problem that the main lobe of the E plane of the antenna is shifted due to the asymmetry of the traditional balanced Vivaldi antenna while retaining the advantages of low cross-polarization of the traditional balanced Vivaldi antenna

Method used

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  • Balanced Pair Tovivaldi Antenna Using Asymmetric Dielectric Rejection and Hybrid Slot
  • Balanced Pair Tovivaldi Antenna Using Asymmetric Dielectric Rejection and Hybrid Slot
  • Balanced Pair Tovivaldi Antenna Using Asymmetric Dielectric Rejection and Hybrid Slot

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specific Embodiment approach 1

[0034] Specific implementation mode one: refer to figure 1 and Image 6 Describe this embodiment in detail. The balanced pair Tovivaldi antenna using asymmetric dielectric rejection and hybrid slotting described in this embodiment includes 1 layer of conductor metal layer 1, 2 layers of floor metal layer 2 and 2 layers of dielectric substrate layer 3,

[0035] The structure of the two dielectric substrate layers 3 is the same, and the two dielectric substrate layers 3 are assembled together in the vertical direction to form an antenna.

[0036] Each floor metal layer 2 is attached to the lower surface of a dielectric substrate layer 3, and the conductive metal layer 1 is attached to the upper surface of the lower dielectric substrate layer 3,

[0037] The conductor metal layer 1 and the floor metal layer 2 extend to both sides to form metal arms, and the metal arms formed by the floor metal layer 2 on the lower layer and the metal arms formed by the conductor metal layer 1 f...

Embodiment

[0044] like figure 1 As shown, the proposed new balanced pair Tovivaldi antenna adopts asymmetric dielectric rejection and hybrid slotting, including: the upper and lower dielectric substrates are treated with asymmetric dielectric rejection; three metal layers, including the upper and lower two layers Floor metal layer and a conductor metal layer; hybrid corrugated edges set on the contour of the metal layer; the stripline-microstrip line conversion structure includes a pair of metallized via holes, the center of the conductor layer has a strip width mutation structure, and the upper dielectric Rectangular cutouts at the end of the base plate and upper metal floor layer.

[0045] Both dielectric substrates are made of Rogers RT / duroid 5880 laminates with a thickness of 0.254mm, the dielectric constant is 2.20, and the loss tangent is 0.0009. The shape of the media-rejected part satisfies the equation:

[0046]

[0047] The metal layer is a copper sheet attached to the su...

specific Embodiment approach 2

[0057] Specific implementation mode two: refer to figure 2 , image 3 , Figure 4 and Figure 7 Describe this embodiment in detail. This embodiment is a further description of the Tovivaldi antenna using the balance of asymmetric dielectric rejection and hybrid slotting described in Embodiment 1. In this embodiment, the conductive metal layer 1 and There are four narrowing pencil-shaped slots on the metal layer 2 of the two floors from the outside to the inside, and the pencil-shaped slots on the metal layer 2 of the lower floor and the pencil-shaped slots on the conductor metal layer 1 form a symmetrical structure.

[0058] On both sides of the conductive metal layer 1 and the second floor metal layer 2 and along the outer curves to the pencil-shaped slots, a number of narrowing rectangular slots are sequentially opened.

[0059]In this embodiment, in order to expand the low-frequency bandwidth limit of the antenna and improve the low-frequency radiation characteristics, ...

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Abstract

The invention discloses a balance antipodal Vivaldi antenna adopting unsymmetrical medium rejection and mixed grooving and relates to the field of antennas. While low cross polarization of a traditional balance antipodal Vivaldi antenna is kept as an advantage, the problem that due to asymmetry of the traditional balance antipodal Vivaldi antenna, a main lobe of the E face of the antenna deviates is solved. Each floor metal layer is attached to the lower surface of a medium substrate layer, a conductor metal layer is attached to the upper surface of the lower medium substrate layer, the conductor metal layer and the floor metal layers extend to the two sides respectively to form metal arms, the metal arms formed by the floor metal layers and the metal arm formed by the conductor metal layer are symmetrical in structure, the outer sides and the inner sides of the metal arms are of curve structures, the lower medium substrate layer located between the curve on the inner side of the conductor metal layer and the curve on the inner side of the lower floor metal layer is rejected, and the rejected lower medium substrate layer is provided with one more medium section compared with the curves on the inner sides of the floor metal layers. The balance antipodal Vivaldi antenna is used for working within the working frequency of 10-40 GHz.

Description

technical field [0001] The present invention relates to a balanced pair Tovivaldi antenna using asymmetric medium rejection and hybrid slotting. It belongs to the field of antennas. Background technique [0002] The tapered slot antenna is a typical end-fire non-resonant traveling wave printed antenna, which has the advantages of wide operating frequency, stable gain, low profile, light weight, simple structure, and easy processing. Among the many forms of tapered slot antennas, the Vivaldi antenna whose slot line shape changes according to an exponential curve has the advantages of the widest bandwidth and wide beam, and thus has been the most widely used. [0003] However, the performance of the Vivaldi antenna is actually limited due to the influence of the feed structure. First of all, its high-frequency cutoff frequency is determined by the conversion structure of the microstrip to the slot line, and the low-frequency cutoff frequency is limited by the size of the ant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q13/08
CPCH01Q1/36H01Q1/38H01Q1/50H01Q13/08
Inventor 王楠楠房牧陈悦
Owner HARBIN INST OF TECH
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