Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2002-07-15
2004-08-24
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S895000
Reexamination Certificate
active
06781549
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to antennas particularly suitable for portable communications devices and to portable communications devices employing such antennas.
BACKGROUND OF THE INVENTION
A great number of patents describe antennas for use in portable communications devices. The following U.S. Patents are believed to represent the state of the art: U.S. Pat. Nos. 6,111,545; 6,094,179; 6,054,959; 6,054,962; 6,069,592; 6,075,488; 6,016,130; 6,052,090; 5,990,347; 5,963,170; 5,923,305; 5,312,097; 5,808,586; 5,805,112; 5,754,146; 5,668,559; 5,600,341; 5,592,184; 5,359,340; 4,772,895; 4,644,366; 4,229,743; 4,161,737.
SUMMARY OF THE INVENTION
The present invention seeks to provide an improved antenna particularly suitable for use in a portable communications device such as a cellular telephone or a pager as well as a portable communications device including such an antenna
There is thus provided in accordance with a preferred embodiment of the present invention an antenna particularly suitable for a portable communication device and including:
an elongate portion integrally formed with at least one first coil portion arranged about the elongate portion and in at least partially overlapping relationship therewith.
The term “coil” is used throughout the specification and claims to refer not only to a three dimensional spring-like coil structure but also to any meandering conductor which can be used as a radiating element in an antenna.
There is also provided in accordance with a preferred embodiment of the present invention a portable communications device including:
a transceiver; and
an antenna connected to the transceiver and including an elongate portion integrally formed with at least one first coil portion arranged about the elongate portion integrally formed with at least one first coil portion arranged about the elongate portion and in at least partially overlapping relationship therewith.
Preferably, at least one second coil portion is integrally formed with the elongate portion.
In accordance with a preferred embodiment of the invention, the at least one second coil portion is disposed in non-overlapping relationship with the elongate portion.
In accordance with a preferred embodiment of the present invention, the elongate portion and the at least one first coil portion have separate resonant frequency bands.
Preferably, the elongate portion, the at least one first coil portion and the at least one second coil portion each have separate resonant frequency bands.
In accordance with a preferred embodiment of the present invention, the antenna also includes a mounting portion integrally formed with the elongate portion, the mounting portion including a bent section arranged for spring fit engagement with an electrical contact. It is appreciated that alternatively any other suitable type of mounting portion may be provided, such as a screw or a stud type mount.
There is also provided in accordance with a preferred embodiment of the present invention a portable communications device including:
a transceiver; and
an antenna connected to the transceiver and including an elongate portion integrally formed with at least one first coil portion arranged about the elongate portion and in at least partially overlapping relationship therewith.
In accordance with one embodiment of the present invention, the at least one first coil portion is formed as one piece with the elongate portion.
Preferably, the at least one first coil portion extends in a wind-back configuration over at least part of the elongate portion.
In accordance with a preferred embodiment of the present invention, the at least one first coil portion is coaxial with the elongate portion.
Preferably, the antenna also includes at least one second coil portion arranged coaxially with the elongate portion and between the elongate portion and a mounting portion of the antenna.
REFERENCES:
patent: 3852759 (1974-12-01), Felsenheld et al.
patent: 4161737 (1979-07-01), Albright
patent: 4229743 (1980-10-01), Vo et al.
patent: 4442438 (1984-04-01), Siwiak et al.
patent: 4644366 (1987-02-01), Scholz
patent: 4772895 (1988-09-01), Garay et al.
patent: 5359340 (1994-10-01), Yokota
patent: 5374937 (1994-12-01), Tsunekawa et al.
patent: 5469177 (1995-11-01), Rush et al.
patent: 5521605 (1996-05-01), Koike
patent: 5592184 (1997-01-01), Cassel et al.
patent: 5600341 (1997-02-01), Thill et al.
patent: 5668559 (1997-09-01), Baro
patent: 5686927 (1997-11-01), Simmons
patent: 5754146 (1998-05-01), Knowles et al.
patent: 5805112 (1998-09-01), Cassel
patent: 5808586 (1998-09-01), Phillips et al.
patent: 5812097 (1998-09-01), Maldonado
patent: 5923305 (1999-07-01), Sadler et al.
patent: 5963170 (1999-10-01), Garner et al.
patent: 5990847 (1999-11-01), Filipovic et al.
patent: 6005523 (1999-12-01), Rudisill
patent: 6016130 (2000-01-01), Annamaa
patent: 6052090 (2000-04-01), Simmons et al.
patent: 6054959 (2000-04-01), Amos et al.
patent: 6054962 (2000-04-01), Ha et al.
patent: 6054966 (2000-04-01), Haapala
patent: 6069592 (2000-05-01), Wass
patent: 6075488 (2000-06-01), Hope
patent: 6094179 (2000-07-01), Davidson
patent: 6097341 (2000-08-01), Saito
patent: 6111545 (2000-08-01), Saari
patent: 6115000 (2000-09-01), Otomo et al.
Berin Alexander
Macqueen Angus
Chen Shih-Chao
Galtronics Ltd.
Ladas & Parry
LandOfFree
Portable antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable antenna will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3309707