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A multimode planar helical oam antenna with tm ring resonator and rotating paraboloid

A ring resonant cavity and rotating paraboloid technology, applied in the fields of communication and radar detection, can solve the problems of restricting the application of OAM, and achieve the effect of simple design and no need for feeding network

Active Publication Date: 2020-10-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The absence of multimode planar helical OAM stacked beam antennas limits the application of OAM

Method used

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  • A multimode planar helical oam antenna with tm ring resonator and rotating paraboloid
  • A multimode planar helical oam antenna with tm ring resonator and rotating paraboloid
  • A multimode planar helical oam antenna with tm ring resonator and rotating paraboloid

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Embodiment

[0027] The multimode planar helical OAM antenna is divided into three parts, which are four TM ring resonators 1, fixed pillars 2 and rotating parabolic reflectors 3, as figure 1 , 2 Shown in , 3 is the structural diagram of the multimode planar helical OAM antenna based on the TM ring resonator and the rotating paraboloid of the present invention, realizing 10GHz, generation, superposition and scanning of 8-mode PSOAM. The antenna consists of 4 TM mode ring resonators with central axis radii: R1=9mm, R2=18mm, R3=27mm, R4=36mm. The 4 TM ring resonators generate ±1 and ±2 respectively from the inside to the outside. , ±3, ±4 modes; 5mm cylindrical fixed pillar, radius Rr = 90mm rotating parabolic reflector. Radiation gap width is 1mm. A paraboloid of revolution is the equation of a parabola in the XOZ plane Wherein, p=20 is twice the focal length, and a closed metal curved reflector is formed by rotating 360 degrees around the Z axis. Figure 4 is the three-dimensional pat...

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Abstract

The invention discloses a multi-mode planar spiral OAM antenna with TM annular resonant cavities and rotary parabolic reflectors, and belongs to the field of communication and radar detection. The antenna comprises four TM annular resonant cavities, fixing pillars and rotary parabolic reflectors. A groove matching the fixing pillar is disposed at the center of the upper surface of each TM annularresonant cavity. The rotary parabolic reflector is located above the fixing pillar, has a radius of Rr=75 mm, and meets an XOZ plane parabolic equation where p is twice the focal length and is equal to 20. Compared with other design schemes, the multi-mode planar spiral OAM antenna has the advantages of high purity, simple design, and no need for a feed network, achieves high-purity 8-modal PSOAMsuperposition, beamforming and 360-degree omnidirectional scanning for the first time.

Description

technical field [0001] The invention belongs to the field of communication and radar detection, and in particular relates to a multi-mode planar helical OAM antenna with a TM ring resonant cavity and a rotating paraboloid. Background technique [0002] With the development of the fifth-generation communication technology, in order to solve the high-loss characteristics of millimeter waves, beamforming technology plays a vital role in the 5G era. Beamforming is also called beamforming or beamforming. Beamforming can concentrate the transmission energy in a specific direction, which can increase the transmission power in a certain direction while the transmission power in other directions is close to zero, so as to achieve The purpose of extending the communication distance in the desired direction and avoiding interference to other directions. Under the condition of the same total transmission power, the communication distance of directional transmission is longer than that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q13/18H01Q15/16H01Q19/17H01Q21/00H01Q21/29H01Q25/04
CPCH01Q1/50H01Q13/18H01Q15/16H01Q19/17H01Q21/0006H01Q21/29H01Q25/04
Inventor 朱泽林郑史烈章献民
Owner ZHEJIANG UNIV