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公开(公告)号：BR0004003A
公开(公告)日：2001-04-17
申请号：BR0004003
申请日：2000-09-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KORISCH ILYA ALEXANDER , TSAI MING-JU , WONG YIU-HUEN , MANZIONE LOUIS THOMAS
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公开(公告)号：DE60013726D1
公开(公告)日：2004-10-21
申请号：DE60013726
申请日：2000-10-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： FRANEY JOHN PHILIP , GUINN KEITH V , MANZIONE LOUIS THOMAS , TSAI MING-JU
Abstract: A patch antenna's resonators (116, 118) are supported by a non-conductive frame (124). The frame supports the resonators without making holes in the resonators and thereby avoids the problem of creating unwanted electric field polarizations. Additionally, the frame grasps the resonators in areas of low current density and thereby avoids creating additional disturbances in the radiation pattern. In one embodiment of the invention, the frame includes a perimeter lip (164) that snaps over the edges of the feedboard (130) and thereby attaches the frame to the feedboard.
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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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公开(公告)号：CA2322737A1
公开(公告)日：2001-04-22
申请号：CA2322737
申请日：2000-10-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GUINN KEITH V , FRANEY JOHN PHILIP , MANZIONE LOUIS THOMAS , TSAI MING-JU
Abstract: A patch antenna's resonators are supported by a non-conductive frame. T he frame supports the resonators without making holes in the resonators and thereby avoids the problem of creating unwanted electric field polarizations. Additionally, the frame grasps the resonators in areas of low current density and thereby avoids creating additional disturbances in the radiation pattern. In one embodiment of the invention, the frame includes a perimeter lip that snaps over the edges of the feedboard an d thereby attaches the frame to the feedboard.
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Patent Agency Ranking
公开(公告)号：CA2322735C
公开(公告)日：2003-05-06
申请号：CA2322735
申请日：2000-10-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ZIMMERMAN MICHAEL A , TSAI MING-JU , GUINN KEITH V , ROBERTS EDWARD BRYAN , VAN EGMOND MAARTEN , PAPATHEODOROU STELIOS
Abstract: A non-conductive frame supports the resonators in a patch antenna assembly. The frame supports the resonators without making holes in the resonators and thereby avoids the problem of creating unwanted electric field polarizations. Additionally, the frame grasps the resonators in areas of low current density and thereby avoids creating additional disturbances in the radiation pattern. The frames may also includ e posts that are used to attach the frames to the feedboard without using additional components such as screws.
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公开(公告)号：DE60000238D1
公开(公告)日：2002-08-01
申请号：DE60000238
申请日：2000-11-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： AIKEN RICHARD THOMAS , TSAI MING-JU
IPC: H01Q3/26 , H01Q5/00 , H01Q5/28 , H01Q5/385 , H01Q5/42 , H01Q5/48 , H01Q5/49 , H01Q9/16 , H01Q13/10 , H01Q21/06 , H01Q21/26
Abstract: A phased array antenna includes an active or beam forming array portion (32,34,36,38) and active parasitic elements (30,40) that transmit and/or receive signals. The parasitic elements serve the dual purpose of providing a uniform impedance for elements at the edge of the array portion of the antenna while also providing active elements that are used to transmit and/or receive signals. The active parasitic elements may transmit and/or receive at the same frequency as the array portion or at a different frequency than the array portion. It is also possible for the active parasitic elements to have a different polarization than the elements of the array portion.
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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：AU5658800A
公开(公告)日：2001-03-22
申请号：AU5658800
申请日：2000-09-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KORISCH ILYA ALEXANDER , MANZIONE LOUIS THOMAS , TSAI MING-JU , WONG YIU-HUEN
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公开(公告)号：CA2310690A1
公开(公告)日：2000-12-17
申请号：CA2310690
申请日：2000-06-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： TSAI MING-JU , RULF BENJAMIN
Abstract: A slot antenna 110 has an array of slot pairs where the E-plane beamwidth of the transmitted energy can be controlled. The antenna includes at least one pair of slots 118, 120 which are fed by a microstrip 122, and electric field barriers 140, 142, 144 positioned between and parallel to the slots 118, 120. The electric field barners extend between the front 110 and rear 112 panels of the slot antenna 100. The distance between the electric field barriers is used to adjust or tune the antenna to a particular transmit or receive frequency, and the distance between the slots is used to control the E-plane beamwidth of the transmitted energy. When the slots are placed closer together, the beamwidth becomes wider, and when the slots are moved further apart, the beamwidth becomes narrower. In one embodiment, the electric field barrier is a series of closely spaced conductors 132, and in another embodiment, the electric field barrier is a conductive strip.
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