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公开(公告)号：JP2001284951A
公开(公告)日：2001-10-12
申请号：JP2001051950
申请日：2001-02-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , HOUSEL JAMES A , TSAI MING-JU
Abstract: PROBLEM TO BE SOLVED: To provide a patch antenna having sophisticated beam width characteristics. SOLUTION: As a first example, this antenna is provided with a patch element and a ground plane separated from the patch element by a first dielectric layer. Further, this antenna has a signal feeder separated from the ground plane by a second dielectric layer and the signal feeder is shielded from the patch element by the ground plane. The signal feeder is electromagnetically coupled with the patch element through an aperture placed on the ground plane across this signal feeder and the ground plane functions as a limited plane to the aperture. Further, as another style, the beam width of the antenna is controlled by controlling the position of a reflecting plate at the back of the signal feeder. Thus, the method is effective for various wireless systems in three-sector configuration with controllable wide beam width.
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公开(公告)号：JP2001267837A
公开(公告)日：2001-09-28
申请号：JP2001051948
申请日：2001-02-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , HOUSEL JAMES A , TSAI MING-JU
Abstract: PROBLEM TO BE SOLVED: To provide a patch antenna having an impedance converter. SOLUTION: Since the impedance converter connecting one end to a patch element and connecting the other end to a feeder through an earth face is used, impedance matching can be attained without being affected by the physical restriction of the patch element. In one mode, the patch element is formed on the surface of a 1st substrate, the earth face is formed on the surface of a 2nd substrate, the earth face is separated from the patch element by plural substrate layers, the converter is embedded between the substrate layers laminated between the patch element and the earth face, and a conductive via hole connects one end of the converter to a feeding point formed on the patch element. The patch antenna has also a coaxial feeder having an outer conductor connected to the earth face and an inner conductor connected to the other end of the converter and capable of transmitting a signal to/from the patch element through the converter.
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公开(公告)号：CA2331939A1
公开(公告)日：2001-08-29
申请号：CA2331939
申请日：2001-01-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , TSAI MING-JU , HOUSEL JAMES A
Abstract: An antenna is described that comprises an antenna having a patch elemen t fabricated onto a substrate, a ground plane, and an impedance transformer between the patch element and the ground plane. The patch element electrically connected to a first end of the impedance transformer, and a feed line is electrically connected to a second end of the impedance transformer through the ground plane. The use of the impedance transformer allows impedance matching to be accomplished without being limited by the physical limitations of the patch element. According to a further aspect of the invention, a patch element is fabricated onto a first substrate surfa ce and a ground plane is fabricated onto a second substrate surface, the ground plane separated from the patch element by a plurality of substrate layers. An impedance transformer is embedded between abutting substrate layers between the patch element and the ground plane, and an electrically conductive via connects a first end of the impedance transformer to a feed point on the patch element. The antenna further includ es a coaxial feed having an outer conductor electrically connected to the ground plane and an inner conductor electrically connected to a second end of the impedance transformer, such that a signal is carried between the coaxial feed and the patch element through the impedance transformer.
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公开(公告)号：BR0100644A
公开(公告)日：2001-10-09
申请号：BR0100644
申请日：2001-02-20
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , TSAI MING-JU , HOUSEL JAMES A
Abstract: A patch antenna (30) is described with enhanced beamwidth characteristics. In a first embodiment, the antenna comprises a patch element (32) and a ground plane (34) separated from the patch element by a first dielectric layer. The antenna further includes a signal feed line (36) separated from the ground plane by a second dielectric layer, the signal feed line being shielded from the patch element by the ground plane. The signal feed line is electromagnetically coupled to the patch element through an aperture (44) in the ground plane lying across the signal feed line, the ground plane functioning as a finite surface relative to the aperture. According to a further aspect of the invention, the beamwidth of the antenna is adjusted by adjusting the position of a reflector behind the signal feed line. Thus, the present invention provides an efficient way to achieve adjustable wide-beamwidth for various wireless systems in a three-sector configuration.
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Patent Agency Ranking
公开(公告)号：CA2331978A1
公开(公告)日：2001-08-29
申请号：CA2331978
申请日：2001-01-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： HOUSEL JAMES A , TSAI MING-JU , CHANG LI-CHUNG
Abstract: A patch antenna is described with enhanced beamwidth characteristics. In a first embodiment, the antenna comprises a patch element and a ground plane separat ed from the patch element by a first dielectric layer. The antenna further includes a signal feed line separated from the ground plane by a second dielectric layer, the signal fee d line being shielded from the patch element by the ground plane. The signal feed line is electromagnetically coupled to the patch element through an aperture in the ground plane lying across the signal feed line, the ground plane functioning as a finite surface relative to the aperture. According to a further aspect of the invention, the beamwidth of the antenna is adjusted by adjusting the position of a reflector behind the signal feed line. Thus, the present invention provides an efficient way to achieve adjustable wide- beamwidth for various wireless systems in a three-sector configuration.
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公开(公告)号：AU2319301A
公开(公告)日：2001-08-30
申请号：AU2319301
申请日：2001-02-23
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , TSAI MING-JU , HOUSEL JAMES A
Abstract: An antenna (70) is described that comprises an antenna having a patch element (72) fabricated onto a substrate (74), a ground plane (82), and an impedance transformer (80) between the patch element and the ground plane. The patch element is electrically connected to a first end of the impedance transformer, and a feed line (84) is electrically connected to a second end of the impedance transformer through the ground plane. The use of the impedance transformer allows impedance matching to be accomplished without being limited to the physical limitations of the patch element. According to a further aspect of the invention, a patch element is fabricated onto a first substrate surface and a ground plane is fabricated onto a second substrate surface, the ground plane separated from the patch element by a plurality of substrate layers. An impedance transformer is embedded between abutting substrate layers between the patch element and the ground plane, and an electrically conductive via connects a first end of the impedance transformer to a feed point on the patch element. The antenna further includes a coaxial feed having an outer conductor electrically connected to the ground plane and an inner conductor electrically connected to a second end of the impedance transformer, such that a signal is carried between the coaxial feed and the patch element through the impedance transformer.
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公开(公告)号：AU2319201A
公开(公告)日：2001-08-30
申请号：AU2319201
申请日：2001-02-23
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , TSAI MING-JU , HOUSEL JAMES A
Abstract: A patch antenna (30) is described with enhanced beamwidth characteristics. In a first embodiment, the antenna comprises a patch element (32) and a ground plane (34) separated from the patch element by a first dielectric layer. The antenna further includes a signal feed line (36) separated from the ground plane by a second dielectric layer, the signal feed line being shielded from the patch element by the ground plane. The signal feed line is electromagnetically coupled to the patch element through an aperture (44) in the ground plane lying across the signal feed line, the ground plane functioning as a finite surface relative to the aperture. According to a further aspect of the invention, the beamwidth of the antenna is adjusted by adjusting the position of a reflector behind the signal feed line. Thus, the present invention provides an efficient way to achieve adjustable wide-beamwidth for various wireless systems in a three-sector configuration.
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公开(公告)号：BR0100620A
公开(公告)日：2001-10-09
申请号：BR0100620
申请日：2001-02-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , TSAI MING-JU , HOUSEL JAMES A
Abstract: An antenna (70) is described that comprises an antenna having a patch element (72) fabricated onto a substrate (74), a ground plane (82), and an impedance transformer (80) between the patch element and the ground plane. The patch element is electrically connected to a first end of the impedance transformer, and a feed line (84) is electrically connected to a second end of the impedance transformer through the ground plane. The use of the impedance transformer allows impedance matching to be accomplished without being limited to the physical limitations of the patch element. According to a further aspect of the invention, a patch element is fabricated onto a first substrate surface and a ground plane is fabricated onto a second substrate surface, the ground plane separated from the patch element by a plurality of substrate layers. An impedance transformer is embedded between abutting substrate layers between the patch element and the ground plane, and an electrically conductive via connects a first end of the impedance transformer to a feed point on the patch element. The antenna further includes a coaxial feed having an outer conductor electrically connected to the ground plane and an inner conductor electrically connected to a second end of the impedance transformer, such that a signal is carried between the coaxial feed and the patch element through the impedance transformer.
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公开(公告)号：ID29374A
公开(公告)日：2001-08-30
申请号：ID20010122
申请日：2001-02-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , HOUSEL JAMES A , TSAI MING-JU
Abstract: A patch antenna (30) is described with enhanced beamwidth characteristics. In a first embodiment, the antenna comprises a patch element (32) and a ground plane (34) separated from the patch element by a first dielectric layer. The antenna further includes a signal feed line (36) separated from the ground plane by a second dielectric layer, the signal feed line being shielded from the patch element by the ground plane. The signal feed line is electromagnetically coupled to the patch element through an aperture (44) in the ground plane lying across the signal feed line, the ground plane functioning as a finite surface relative to the aperture. According to a further aspect of the invention, the beamwidth of the antenna is adjusted by adjusting the position of a reflector behind the signal feed line. Thus, the present invention provides an efficient way to achieve adjustable wide-beamwidth for various wireless systems in a three-sector configuration.
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