Bifurcated inverted F antenna

Details Bifurcated inverted F antenna Bifurcated inverted F antenna

2005-06-07

2005-06-07

Phan, Tho (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S7000MS

Reexamination Certificate

active

06903693

ABSTRACT:
A system and method for small built-in antennas that can be incorporated into short range communication devices such as cordless headsets are disclosed. The antenna is a built-in bifurcated inverted F antenna. The antenna generally includes two signal radiating and receiving arms of substantially equal electrical length extending generally parallel to each other along a longitudinal length of the antenna, the arms defining an opening therebetween extending along the longitudinal length of the antenna, a signal component in communication with the two arms for transmitting and receiving signals between the two arms and a signal contact of the wireless communication device, and a grounding component in contact with a grounding plane for grounding the antenna. The antenna may include an extension sloped relative to the grounding plane and extending between the grounding component and the arms to minimize the profile of the antenna. The wireless device may further include a printed circuit board onto which the antenna is secured. The device may also include a control in communication with the printed circuit board and extends through the opening between the two arms such that the control is symmetrically arranged relative to the two arms, approximately on a center line extending the longitudinal length of the device. The antenna is optionally tuned for a 1900 MHz or a 2400 MHz frequency band.

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patent: 2001/0043159 (2001-11-01), Masuda et al.
patent: 2001/0050643 (2001-12-01), Egorov et al.
patent: 2002/0024466 (2002-02-01), Masuda

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