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公开(公告)号：AU3933800A
公开(公告)日：2000-10-16
申请号：AU3933800
申请日：2000-03-30
Applicant: QUALCOMM INC
Inventor： NYBECK JAMES L , OZAKI ERNEST T , TASSOUDJI MOHAMMAD A
Abstract: The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequency range. A wireless telephone using this assembly can, therefore, operate with either a terrestrial cellular communications system or a satellite communications system. In a preferred embodiment of the invention, the satellite communications antenna is a quadrifilar helix antenna and the cellular communications antenna is a sleeve dipole. The whip portion of the sleeve dipole is positioned axially in the center of the quadrifilar helix antenna. This orientation permits operation in both the satellite and cellular frequency ranges without significant electromagnetic coupling.
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Patent Agency Ranking
公开(公告)号：IN435CHN2014A
公开(公告)日：2015-04-03
申请号：IN435CHN2014
申请日：2014-01-20
Applicant: QUALCOMM INC
Inventor： LEE CHEOL WOONG , TASSOUDJI MOHAMMAD A , BROCKENBROUGH ROGER
Abstract: Techniques for improving coverage of an antenna system are disclosed. In an aspect a wireless device (310) includes a 3 D antenna system (320) to improve coverage and enhance performance. The 3 D antenna system (320) includes antenna elements (332 342) formed on multiple planes pointing in different spatial directions. Antenna elements formed on the multiple planes are associated with different antenna beams (350 360) which can provide a larger line of sight (LOS 352 362) coverage for the wireless device. Beamforming may be performed for the antennas on a given plane to further improve LOS coverage (352 362). Non LOS (NLOS 354) coverage may also improve since antenna beams pointing in different spatial directions may result in reflected signals of higher power levels due to better signal reflection for some antenna beams. The antenna system may be used for 60 GHz mm waves in IEEE 802. 11ad WPANs.
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公开(公告)号：HK1045027A1
公开(公告)日：2002-11-08
申请号：HK02106397
申请日：2002-08-29
Applicant: QUALCOMM INC
Inventor： NYBECK JAMES L , OZAKI ERNEST T , TASSOUDJI MOHAMMAD A
Abstract: The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequency range. A wireless telephone using this assembly can, therefore, operate with either a terrestrial cellular communications system or a satellite communications system. In a preferred embodiment of the invention, the satellite communications antenna is a quadrifilar helix antenna and the cellular communications antenna is a sleeve dipole. The whip portion of the sleeve dipole is positioned axially in the center of the quadrifilar helix antenna. This orientation permits operation in both the satellite and cellular frequency ranges without significant electromagnetic coupling.
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公开(公告)号：CA2368401A1
公开(公告)日：2000-10-05
申请号：CA2368401
申请日：2000-03-30
Applicant: QUALCOMM INC
Inventor： NYBECK JAMES L , OZAKI ERNEST T , TASSOUDJI MOHAMMAD A
Abstract: The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequency range. A wireless telephone using this assemvly can, therefore, operate with either a terrestrial cellular communications system or a satellite communications system. In a preferred embodiment of the invention, the satellite communications antenna is a quadrifilar helix antenna and the cellular communications antenna is a sleeve dipole. The whip portion of the sleeve dipole is positioned axially in the center of the quadrifilar helix antenna. This orientation permits operation in both the satellite and cellul ar frequency ranges without significant electromagnetic coupling.
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公开(公告)号：AU6504899A
公开(公告)日：2000-04-17
申请号：AU6504899
申请日：1999-09-29
Applicant: QUALCOMM INC
Inventor： TASSOUDJI MOHAMMAD A , OZAKI ERNEST T , PANTON WILLIAM R
Abstract: A compact, low cost antenna communicates with low and medium earth orbit satellites. The antenna includes a plurality of micro-strip elements arranged about an axis and positioned to illuminate upper elevation angles. The micro-strip elements are perpendicular to each other and are oriented toward the horizon at 90 degree increments. Furthermore, the micro-strip elements are tilted at a 50 degree angle. A quadrifilar helix is positioned at the center of the micro-strip elements and positioned to illuminate lower elevation angles. The micro-strip elements generate an omni-directional field pattern in the azimuth plane. The quadrifilar helix generates a high-gain, narrow beam-width field pattern that is also omni-directional in the azimuth plane. The antenna provides improved immunity to specular ground reflections by limiting reception of signals below a threshold elevation angle. Also, the antenna provides continuous, uninterrupted communications by eliminating "dead" period associated with conventional parabolic dish antennas.
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公开(公告)号：AU5491899A
公开(公告)日：2000-03-14
申请号：AU5491899
申请日：1999-08-17
Applicant: QUALCOMM INC
Inventor： TASSOUDJI MOHAMMAD A , GULINO RONALD
Abstract: A helical antenna having a radiator portion formed on a flexible substrate and a rigid substrate with a center feed element electrically connected to the radiator portion. The flexible substrate is supported by a support assembly with the radiator portion spaced substantially equidistant from the center feed element. The support assembly includes a first non-conductive member mounted to one surface of the rigid substrate at a first location, a second non-conductive member mounted to a second surface at the first location, a third non-conductive member mounted to the one surface at a second location spaced from the first location, and a fourth non-conductive member mounted to the second surface at the second location. A tool for assembling the helical antenna is provided having a base member with a plurality of elongated members mounted thereon substantially equidistant from each other and extending outwardly therefrom. A plurality of holes formed in the elongated members removably receive pins when in registration with holes in the flexible substrate. A rotatable tuning cap for fine tuning the antenna may be used having a plurality of tuning elements extending axially with the central antenna axis.
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