| 主权项 |
1. An antenna with a concentrated magnetic field, comprising:
a main coil having:
at least one coil conductor, each one of the at least one coil conductor having at least one feed point; andat least one virtual reference plane respectively defined on the at least one coil conductor of the main coil for lines of magnetic field generated by the at least one coil conductor of the main coil to be concentrated in the at least one virtual reference plane; and at least one pair of auxiliary coils, each pair of auxiliary coils mounted on two edges of the main coil opposite to each other, wherein each auxiliary coil has:
at least one coil conductor, each one of the at least one coil conductor having at least one feed point respectively and electrically connected to the at least one feed point of the main coil; andat least one virtual reference plane respectively defined on the at least one coil conductor; wherein an included angle is formed between each one of the at least one virtual reference plane of the auxiliary coil and each one of the at least one virtual reference plane of the main coil, and lines of magnetic field generated by the at least one pair of auxiliary coils concentrate the lines of magnetic field generated by the main coil to orient to the at least one virtual reference plane of the main coil. |
