Reverse F-shaped antenna

Details Reverse F-shaped antenna Reverse F-shaped antenna

2007-09-18

2007-09-18

Dinh, Trinh (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S7000MS

Reexamination Certificate

active

11058001

ABSTRACT:
In a reverse F-shaped antenna formed on a surface of a printed board, the radiating element has a first radiating conductor, a second radiating conductor, and a chip coil. The chip coil is positioned between the first and second radiating conductors and electrically connects the first radiating conductor to the second radiating conductor. The reverse F-shaped antenna is effectively downsized. A component of current flow in the chip coil in a three-dimensional direction allows sensitivity to some extent to a wave polarized in all directions. By merely changing the inductance in the chip coil, it is possible to easily alter the resonance frequency in the reverse F-shaped antenna.

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