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公开(公告)号：AU7368396A
公开(公告)日：1997-04-09
申请号：AU7368396
申请日：1996-09-23
Applicant: QUALCOMM INC
Inventor： TASSOUDJI MOHAMMAD ALI , THOMPSON JAMES H , STANDKE RANDOLPH E
Abstract: A dual-band octafilar helix antenna operational at two frequencies, while maintaining a relatively small package size. The dual-band octafilar antenna is manufactured by disposing radiators and a feed network onto a flexible substrate and forming the substrate into a cylindrical shape to obtain the helical configuration. The dual-band octafilar helix antenna includes four active radiators which are matched to a first frequency and disposed on a radiator portion of the flexible substrate. Four additional radiators, which may be either passive or active radiators, are matched to a second frequency, are also disposed on the radiator portion of the substrate and interleaved with the active radiators. At least one feed network is provided on a feed portion of the substrate that provides 0 DEG , 90 DEG , 180 DEG , and 270 DEG signals to active radiators. The sets of radiators and associated feed networks may be formed on opposing sides of a single substrate or on spaced apart layers in a multi-layered support substrate design.
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公开(公告)号：AU2002361760A1
公开(公告)日：2003-07-09
申请号：AU2002361760
申请日：2002-12-17
Applicant: QUALCOMM INC
Inventor： STANDKE RANDOLPH E
Abstract: Provided is a system and method for eliminating the effects of antenna coupling by increasing the isolation between closely mounted antennas on a portable wireless communications device. Increased isolation is achieved by providing a ceramic resonator in the path of each of the antennas. The ceramic resonator placed in the path of a particular antenna eliminates the effects of coupling caused by a particular one of the other antennas by rejecting signals associated with the particular antenna.
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公开(公告)号：AU3675001A
公开(公告)日：2001-08-20
申请号：AU3675001
申请日：2001-02-07
Applicant: QUALCOMM INC
Inventor： STANDKE RANDOLPH E , BURKE JOSEPH P , HEIDMANN PETER
Abstract: A wireless telephone (102) includes a telephone transceiver (104), GPS receiver (106), and Bluetooth transceiver (108). The telephone antenna (110) is external, and the Bluetooth antenna (120) is internal. The GPS receiver (106) may be driven by its own internal antenna (326), or via a signal separator (116), (216), by either of the other antennas ((110), (120).
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公开(公告)号：CA2471112A1
公开(公告)日：2003-07-03
申请号：CA2471112
申请日：2002-12-17
Applicant: QUALCOMM INC
Inventor： STANDKE RANDOLPH E
Abstract: Provided is a system and method for reducing the effects of antenna coupling by increasing the isolation between closely mounted antennas on a portable wireless communications device. Increased isolation is achieved by providing a ceramic resonator in the path of each of the antennas. The ceramic resonator placed in the path of a particular antenna reduces the effects of coupling caused by a particular one of the other antennas by rejecting signals associated with the particular antenna.
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公开(公告)号：FI971686A
公开(公告)日：1997-06-23
申请号：FI971686
申请日：1997-04-18
Applicant: QUALCOMM INC
Inventor： TASSOUDJI MOHAMMAD ALI , THOMPSON JAMES H , STANDKE RANDOLPH E
Abstract: A dual-band octafilar helix antenna operational at two frequencies, while maintaining a relatively small package size. The dual-band octafilar antenna is manufactured by disposing radiators and a feed network onto a flexible substrate and forming the substrate into a cylindrical shape to obtain the helical configuration. The dual-band octafilar helix antenna includes four active radiators which are matched to a first frequency and disposed on a radiator portion of the flexible substrate. Four additional radiators, which may be either passive or active radiators, are matched to a second frequency, are also disposed on the radiator portion of the substrate and interleaved with the active radiators. At least one feed network is provided on a feed portion of the substrate that provides 0 DEG , 90 DEG , 180 DEG , and 270 DEG signals to active radiators. The sets of radiators and associated feed networks may be formed on opposing sides of a single substrate or on spaced apart layers in a multi-layered support substrate design.
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Patent Agency Ranking
公开(公告)号：BR9505779A
公开(公告)日：1996-02-27
申请号：BR9505779
申请日：1995-03-28
Applicant: QUALCOMM INC
Inventor： THOMPSON JAMES H , STANDKE RANDOLPH E , PIERCE THOMAS R
Abstract: A coaxial-waveguide assemblage is disclosed herein of the invention includes a first coaxial transmission line having a first inner and a first outer conductor. The inventive assemblage further includes a waveguide electromagnetically coupled to the first coaxial transmission line, where an inner surface of the waveguide bounds a signal propagation space. The waveguide is also electromagnetically coupled to a second coaxial transmission having a second inner and a second outer conductor. The inner conductor of the second coaxial transmission line is disposed to rotate about a first vertical axis, thereby enabling the second coaxial transmission line to be connected to a rotating antenna. In a particular implementation the coaxial-waveguide assemblage is disposed within a rotary joint operative to couple electromagnetic energy between first and second signal ports. An axially elongated dielectric sleeve, disposed about the second inner conductor, will preferably be dimensioned to extend into the waveguide propagation space. The rotary joint will generally include a bearing arrangement interposed between the second outer conductor and the axially elongated dielectric sleeve of the second coaxial transmission line. Tuning of the coaxial-waveguide assemblage is facilitated by a tuning cavity in communication with the propagation space.
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公开(公告)号：BR9606562A
公开(公告)日：1997-09-30
申请号：BR9606562
申请日：1996-08-09
Applicant: QUALCOMM INC
Inventor： STANDKE RANDOLPH E , THOMPSON JAMES H
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公开(公告)号：AU6844996A
公开(公告)日：1997-03-05
申请号：AU6844996
申请日：1996-08-09
Applicant: QUALCOMM INC
Inventor： STANDKE RANDOLPH E , THOMPSON JAMES H
Abstract: A quadrifilar antenna is comprised of four radiators which, in the preferred embodiment, are etched onto a radiator portion of a microstrip substrate. The microstrip substrate is formed into a cylindrical shape such that the radiators are helically wound. Also etched onto the microstrip substrate is a feed network that provides 0 DEG , 90 DEG , 180 DEG and 270 DEG signals to the antenna radiators. The feed network utilizes a combination of one or more branch line couplers and one or more power dividers to accept an input signal from a transmitter and to provide therefrom the 0 DEG , 90 DEG , 180 DEG and 270 DEG signals needed to drive the antenna. For receive operations, the feed network utilizes these same components to receive the 0 DEG , 90 DEG , 180 DEG and 270 DEG signals from the antenna radiators and to provide a single output signal to a communications receiver. The power divider accepts an input signal and provides therefrom two output signals differing from each other in phase by 180 DEG . The branch line coupler accepts an input signal and provides therefrom two output signals differing from one another in phase by 90 DEG .
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公开(公告)号：CA2202128A1
公开(公告)日：1997-02-20
申请号：CA2202128
申请日：1996-08-09
Applicant: QUALCOMM INC
Inventor： THOMPSON JAMES H , STANDKE RANDOLPH E
Abstract: A quadrifilar antenna is comprised of four radiators which, in the preferred embodiment, are etched onto a radiator portion of a microstrip substrate. The microstrip substrate is formed into a cylindrical shape such that the radiators are helically wound. Also etched onto the microstrip substrate is a feed network that provides 0.degree., 90.degree., 180.degree. and 270.degree. signals to the antenna radiators. The feed network utilizes a combination of one or more branch line couplers and one or more power dividers to accept an input signal from a transmitter and to provide therefrom the 0.degree., 90.degree., 180.degree. and 270.degree. signals needed to drive the antenna. For receive operations, thefeed network utilizes these same components to receive the 0.degree., 90.degree., 180.degree. and 270.degree. signals from the antenna radiators and to provide a single output signal to a communications receiver. The power divider accepts an input signal and provides therefrom two output signals differing from each other in phase by 180.degree.. The branch line coupler accepts an input signal and provides therefrom two output signals differing from one another in phase by 90.degree..
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公开(公告)号：AU2200995A
公开(公告)日：1995-10-17
申请号：AU2200995
申请日：1995-03-28
Applicant: QUALCOMM INC
Inventor： THOMPSON JAMES H , STANDKE RANDOLPH E , PIERCE THOMAS R
Abstract: A coaxial-waveguide assemblage is disclosed herein of the invention includes a first coaxial transmission line having a first inner and a first outer conductor. The inventive assemblage further includes a waveguide electromagnetically coupled to the first coaxial transmission line, where an inner surface of the waveguide bounds a signal propagation space. The waveguide is also electromagnetically coupled to a second coaxial transmission having a second inner and a second outer conductor. The inner conductor of the second coaxial transmission line is disposed to rotate about a first vertical axis, thereby enabling the second coaxial transmission line to be connected to a rotating antenna. In a particular implementation the coaxial-waveguide assemblage is disposed within a rotary joint operative to couple electromagnetic energy between first and second signal ports. An axially elongated dielectric sleeve, disposed about the second inner conductor, will preferably be dimensioned to extend into the waveguide propagation space. The rotary joint will generally include a bearing arrangement interposed between the second outer conductor and the axially elongated dielectric sleeve of the second coaxial transmission line. Tuning of the coaxial-waveguide assemblage is facilitated by a tuning cavity in communication with the propagation space.
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