US 2021/0270883 A1 · METHOD AND DEVICE FOR CALCULATING DIRECTIONAL PATTERN OF BEAM POINTING ADJUSTABLE ANTENNA

Abstract

Provided are a directional pattern calculation method and apparatus for a beam pointing adjustable antenna. In the design method, key control factors are quantized, for example, a arrangement and combination modes for a plurality of slot units and wave-controlled codes for conducting and cut-off states of a slot unit, and different combinations of slot units and a far-field directional pattern of a controlled array antenna are evaluated, so that electrical performance indicators of the array antenna can be further evaluated. Weighting calculation is implemented for a directional pattern of a beam pointing adjustable antenna. Key information such as a form of a slot unit and a arrangement and combination modes for slot units can be globally optimized. Optimization on selection, a permutation, a combination, a spacing, and the like of slot units is greatly saved during antenna design, so as to focus on design of a structural form of a slot unit. In addition, wave controlled codes for conducting and cut off states corresponding to each slot unit may be further calculated according to a beam directivity deflection requirement, to provide guidance for beam directivity control and implement fast beam forming and switching.

Claims14

Dependent claims

A method for calculating directional pattern of a beam pointing adjustable antenna, the beam pointing adjustable antenna comprising a plurality of slot units that generate leaky waves, and the method comprising the following steps:

S1. obtaining a total transmission matrix of a single-slot waveguide and a transmission matrix of a seamless waveguide corresponding to one of the slot units, and obtaining an equivalent transmission matrix of the single slot unit according to the total transmission matrix of the single-slot waveguide and the transmission matrix of the seamless waveguide;
S2. obtaining an arrangement and combination mode of the slot units and a beam pointing control code representing on or off state of each slot unit, and obtaining a transmission matrix cascading mode of the beam pointing adjustable antenna according to the arrangement and combination mode, the beam pointing control code, and the equivalent transmission matrix of the single slot unit;
and
S3. obtaining the directional pattern of the single-slot waveguide structure excited at the left end and the directional pattern of the single-slot waveguide structure excited at the right end, and obtaining a composite directional pattern of the beam pointing adjustable antenna according to the directional pattern of the single-slot waveguide structure excited at the left end, the directional pattern of the single-slot waveguide structure excited at the right end, and the transmission matrix cascading mode of the beam pointing adjustable antenna.

1 more element

A device for calculating directional pattern of a beam pointing adjustable antenna, comprising:

a slot transmission matrix obtaining module configured for:
obtaining a total transmission matrix of a single-slot waveguide and a transmission matrix of a seamless waveguide corresponding to one of the slot units, and obtaining an equivalent transmission matrix of the single slot unit according to the total transmission matrix of the single-slot waveguide and the transmission matrix of the seamless waveguide;
an antenna transmission matrix obtaining module configured for:
obtaining an arrangement and combination mode of the slot units and a beam pointing control code representing on or off state of each slot unit, and obtaining a transmission matrix cascading mode of the beam pointing adjustable antenna according to the arrangement and combination mode, the beam pointing control code, and the equivalent transmission matrix of the single slot unit;
and
an antenna directional pattern generating module, configured for:
obtaining the directional pattern of the single-slot waveguide structure excited at the left end and the directional pattern of the single-slot waveguide structure excited at the right end, and obtaining a composite directional pattern of the beam pointing adjustable antenna according to the directional pattern of the single-slot waveguide structure excited at the left end, the directional pattern of the single-slot waveguide structure excited at the right end, and the transmission matrix cascading mode of the beam pointing adjustable antenna;
wherein the slot transmission matrix obtaining module, the antenna transmission matrix obtaining module, and the antenna directional pattern generating module are sequentially connected.

5 more elements

Dependencies are inferred from the claim text.

Method and device for calculating directional pattern of beam pointing adjustable antenna

Life of this patent

Method and device for calculating directional pattern of beam pointing adjustable antenna

Life of this patent

Abstract

Claims14