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Balance antipodal Vivaldi antenna adopting unsymmetrical medium rejection and mixed grooving

An asymmetric and hybrid technology, applied in the direction of antenna, antenna grounding switch structure connection, radiating element structure form, 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, The effect of solving the feeding problem

Active Publication Date: 2017-01-11
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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  • Balance antipodal Vivaldi antenna adopting unsymmetrical medium rejection and mixed grooving
  • Balance antipodal Vivaldi antenna adopting unsymmetrical medium rejection and mixed grooving
  • Balance antipodal Vivaldi antenna adopting unsymmetrical medium rejection and mixed grooving

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specific Embodiment approach 1

[0034] Specific embodiment one: reference figure 1 with Image 6 Detailed description of this embodiment, the balanced pair of Tovi Valdi antenna using asymmetric dielectric rejection and hybrid slotting described in this embodiment includes a conductive metal layer 1, two floor metal layers 2 and two dielectric layers Substrate layer 3,

[0035] The two dielectric substrate layers 3 have the same structure, 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 dielectric substrate layer 3 at the lower layer.

[0037] The conductive metal layer 1 and the floor metal layer 2 respectively 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 conductive metal layer 1 ...

Embodiment

[0044] Such as figure 1 As shown, the proposed new balanced pair of Tovi Valdi antenna using asymmetric dielectric rejection and hybrid slotting includes: the upper and lower dielectric substrates are treated with asymmetric dielectric rejection; three metal layers, including the upper and lower layers Floor metal layer and a conductive metal layer; mixed corrugated edges arranged on the outline of the metal layer; stripline-microstrip line conversion structure including a pair of metallized vias, strip width abrupt structure in the center of the conductor layer, and upper dielectric The rectangle at the end of the base plate and the upper metal floor layer is hollowed out.

[0045] The two-layer dielectric substrates are both 0.254mm thick Rogers RT / duroid 5880 laminates, with a dielectric constant of 2.20 and a loss tangent of 0.0009. The shape of the medium rejection part satisfies the equation:

[0046] Y 1 = 0 Y 2 = - [ - W M S +...

specific Embodiment approach 2

[0057] Specific embodiment two: reference figure 2 , image 3 , Figure 4 with Figure 7 This embodiment will be described in detail. This embodiment is to further explain the Tovivaldi antenna using the balance of asymmetric dielectric rejection and hybrid slotting described in the first embodiment. In this embodiment, the conductive metal layer 1 and The two floor metal layers 2 are provided with 4 tapered pencil-shaped slots from the outside to the inside, and the pencil-shaped slots on the lower floor metal layer 2 and the pencil-shaped slots on the conductor metal layer 1 are in a symmetrical structure.

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

[0059] In this embodiment, in order to extend the antenna low-frequency bandwidth limit and improve the low-frequency radiation characteristics, a hybrid ripple edge is introduc...

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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 invention relates to a balanced pair of Tovi Valdi 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. It 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 widest bandwidth and wide beam, and has been the most widely used. [0003] However, because the performance of the Vivaldi antenna is affected by the feed structure, the operating bandwidth is actually limited. First, the high-frequency cut-off frequency is determined by the conversion structure of the microstrip to the slot line, and the low-frequency cut-off frequency is limited by the size of the antenna. [0004] In o...

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 王楠楠房牧陈悦
Owner HARBIN INST OF TECH
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