Plane bending cross-shaped broadband dual-polarization butterfly-shaped vibrator

A cross-type, dual-polarization technology, which is applied to antenna unit combinations with different polarization directions, resonant antennas, and radiation element structures, can solve problems such as ignoring the edge effect of limited arrays and not considering the coupling between units. , to achieve the effect of reducing the size of the antenna and increasing the application prospect

Pending Publication Date: 2019-07-19
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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Problems solved by technology

However, these two methods have their own limitations. The element design based on radiation boundary conditions does not take into account the coupling between elements; the periodic boundary condition considers the coupling between elements, but ignores the edge effects of finite arrays

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  • Plane bending cross-shaped broadband dual-polarization butterfly-shaped vibrator
  • Plane bending cross-shaped broadband dual-polarization butterfly-shaped vibrator
  • Plane bending cross-shaped broadband dual-polarization butterfly-shaped vibrator

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Embodiment Construction

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention discloses a plane bending cross-shaped broadband dual-polarization butterfly-shaped vibrator; the plane bending cross-shaped broadband dual-polarization butterfly-shaped vibrator comprises a bottom plate and a butterfly-shaped vibrator feed structure formed by a pair of cross-shaped butterfly-shaped dipoles arranged on the upper end surface of the bottom plate. In order to increase the half-power beam width of a radiation pattern, the antenna size is reduced, and the dual-polarization butterfly-shaped vibrator structure is improved, and a vibrator arm is bent towards the direction of a floor for a certain angle; when the bending angle is 40 degrees, the voltage standing wave ratio (VSWR) is 1.5 or below, and high in-band characteristics can be obtained from 4GHz to 8GHz; thenovel plane bending cross-shaped broadband dual-polarization butterfly-shaped vibrator has a very low profile (smaller than 1 / 6 of low-frequency wavelength), low cross polarization and a symmetric radiation pattern, so that the antenna unit is a relatively good unit selection of a wireless communication phased array antenna and a radio astronomical phased array feed source, and has a relatively high application prospect in millimeter wave communication.

Description

technical field [0001] The invention relates to the field of broadband dual-polarization butterfly oscillators, in particular to a plane bending cross-type broadband dual-polarization butterfly oscillator. Background technique [0002] The pattern of the phased array feed depends on the type, orientation, position in space, and the amplitude and phase of the excitation current of the single array element used, so the selection and design of the antenna elements in the array design play a crucial role. Its characteristics greatly limit the achievable performance of the entire array. [0003] Traditional antenna elements based on printed radiating structures can only achieve moderate bandwidth (25%). In order to meet the requirements of broadband systems, various broadband antenna elements have been proposed in turn, among which the slot-aperture (Vivaldi) antenna array is more commonly used. Although the Vivaldi antenna has excellent broadband performance, the cross-polariza...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/12H01Q1/36H01Q1/48H01Q1/50H01Q9/16H01Q21/00H01Q19/10H01Q21/24
CPCH01Q1/36H01Q1/48H01Q1/50H01Q9/16H01Q1/12H01Q1/364H01Q21/0006H01Q21/24H01Q19/108
Inventor 范瑾
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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