Title:
PLANAR ANTENNA
Document Type and Number:
Japanese Patent JP2018032968
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a planar antenna capable of simultaneously multiplexing and transmitting/receiving multiple different OAM waves consisting of two kinds of circularly polarized waves.SOLUTION: The present invention relates to a planar antenna 1 comprising: a signal radiation part 10 including a first conductor plate 2 in which multiple signal radiation ports S for radiating circularly polarized waves therefrom are arrayed, and a second conductor plate 3 for radiating signals from the multiple signal radiation ports S by forming a first waveguide part X for guiding signals between the second conductor plate and the first conductor plate 2; first power supply parts P1-P4 which are provided on the second conductor plate 3 and include multiple first power supply elements for supplying power to the first waveguide part X; and a circuit part 20 for giving a predetermined phase difference and supplying power to each of the multiple first power supply elements P1-P4. The circuit part 20 supplies power from the first power supply parts P in such a manner that an outward electromagnetic wave is guided in the first waveguide part X, and multiple different spiral beams consisting of circularly polarized waves of which the polarization direction is rotated in a fixed direction, are radiated from the signal radiation part 10.SELECTED DRAWING: Figure 1
Inventors:
HIROKAWA JIRO
Application Number:
JP2016163454A
Publication Date:
March 01, 2018
Filing Date:
August 24, 2016
Export Citation:
Assignee:
TOKYO INST TECH
International Classes:
H01Q21/24; H01Q3/26; H01Q13/22; H01Q15/04
Attorney, Agent or Firm:
Ken Ieiri