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Low-frequency ultra-wideband miniaturized Vivaldi antenna for probe

An ultra-wideband and antenna technology, applied in the field of miniaturized Vivaldi antennas, to achieve the effect of improving the VSWR, reducing the actual length, and widening the bandwidth

Pending Publication Date: 2021-06-29
杭州永谐科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing vivaldi antenna, due to its own size limitation, the frequency of the low frequency is still at a high level

Method used

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  • Low-frequency ultra-wideband miniaturized Vivaldi antenna for probe
  • Low-frequency ultra-wideband miniaturized Vivaldi antenna for probe
  • Low-frequency ultra-wideband miniaturized Vivaldi antenna for probe

Examples

Experimental program
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Effect test

Embodiment

[0027] A miniaturized Vivaldi antenna for low-frequency ultra-wideband for probes, such as figure 1 As shown, the first antenna unit 1 and the second antenna unit 2 each include a symmetry axis, and the first antenna unit 1 and the second antenna unit 2 are arranged to cross each other so that the symmetry axis of the first antenna unit 1 is in line with the second The axes of symmetry of the antenna elements 2 coaxially overlap each other.

[0028] like figure 2 As shown, the first antenna unit 1 includes two first dielectric boards 11 arranged parallel to each other, both of which are PCB boards, and one of the first dielectric boards 11 is close to the surface of the other first dielectric board 11 A middle metal plate 32 is printed on the top, and the middle metal plate 32 is a power feeding layer. An upper metal plate 31 and a lower metal plate 33 are respectively printed on the two sides of the first dielectric board 11 away from each other. The upper metal plate 31 a...

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Abstract

The invention relates to the technical field of antennas, and discloses a low-frequency ultra-wideband miniaturized Vivaldi antenna for a probe. The low-frequency ultra-wideband miniaturized Vivaldi antenna comprises a first antenna unit and a second antenna unit, wherein the first antenna unit and the second antenna unit are arranged in a mutually crossed manner, each of the first antenna unit and the second antenna unit comprises two dielectric plates which are arranged in parallel, a feed layer is clamped between the two dielectric plates, radiation layers are fixedly connected to the two sides, away from each other, of the two dielectric plates, open-circuit cavities are formed in the radiation layers, a plurality of gaps parallel to each other are formed in the radiation layers so that the radiation unit can be divided into a plurality of radiation parts in the symmetry axis direction of the open-circuit cavities, a loading part for connecting each radiation part is arranged between every two adjacent radiation parts, a radiation groove is formed in at least one of the radiation parts. Through the combination of two modes of loading a resistor and forming the loading groove, the port standing wave of the two antenna units is reduced, the isolation degree is improved, and the antenna with a smaller size is obtained.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a miniaturized Vivaldi antenna for low-frequency ultra-wideband probes. Background technique [0002] Antenna measurement is a crucial part of a communication system. Quick and effective evaluation of antenna performance can effectively help the project development process. Single-polarization probes need to be mechanically rotated to achieve bipolarity, and the test efficiency is low. Dual-polarization probes can effectively improve test efficiency, but have higher requirements for antenna cross-polarization and port isolation. Metallized via holes are arranged at intersections of wires that need to be connected on each layer, and are used to connect multilayer wiring. [0003] Due to the size limitation of the existing vivaldi antenna, the low frequency is still at a relatively high level. Contents of the invention [0004] The present invention intends to provide a low-f...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/52H01Q5/307H01Q5/50H01Q21/06
CPCH01Q1/38H01Q1/521H01Q5/307H01Q5/50H01Q21/06
Inventor 马长春邓万强孙靖虎
Owner 杭州永谐科技有限公司
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