Adjustable antenna coil

Details Adjustable antenna coil Adjustable antenna coil

2011-01-25

2011-01-25

Choi, Jacob Y (Department: 2821)

Communications: radio wave antennas

Antennas

With variable reactance for tuning antenna

C343S741000

Reexamination Certificate

active

07876277

ABSTRACT:
An antenna coil formed on a substrate surface of an insulating substrate has conductor lines forming four sides of a basic loop shape. Furthermore, the antenna coil has corner lines at a corner portion of the loop. For example, by forming trimming lines on the inner side of one of the corner lines, it becomes possible to adjust the resonant frequency in various ways without considerably disturbing the shape of distribution of magnetic flux density generated by the antenna coil as a whole.

REFERENCES:
patent: 4749963 (1988-06-01), Makimoto et al.
patent: 2003-224415 (2003-08-01), None

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