-
公开(公告)号：AU2003213480A1
公开(公告)日：2003-08-21
申请号：AU2003213480
申请日：2003-07-16
Applicant: QUALCOMM INC
Inventor： PANTON WILLIAM R , THOMPSON JAMES H , TASSOUDJI MOHAMMAD ALI
IPC: H04B7/08
-
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.
-
公开(公告)号：CA2343729A1
公开(公告)日：2000-03-16
申请号：CA2343729
申请日：1999-09-07
Applicant: QUALCOMM INC
Inventor： OZAKI ERNEST T , TASSOUDJI MOHAMMAD ALI , LIN YI-CHENG
Abstract: A dielectric resonator antenna (100) having a resonator (104) formed from a dielectric material mounted on a ground plane (108). The ground plane (108) is formed from a conductive material. First and second probes (112, 116) are electrically coupled to the resonator (104) for providing first and second signals, respectively, to or receiving from the resonator (104). The first a nd second probes (112, 166) are spaced apart from each other. The first and second probes (112, 116) are formed of conductive strips that are electrical ly connected to the perimeter of the resonator (104) and are substantially orthogonal with respect to the ground plane (108). The first and second signals have equal amplitude, but 90 degrees phase difference with respect t o each other, to produce a circularly polarised radiation pattern. A dual band antenna (200, 220) can be constructed by positioning and connecting two dielectric resonator antennas (204, 208; 224, 228) together. Each resonator (204, 208; 224, 228) in the dual band configuration (200, 220) resonates at a particular frequency, thereby providing dual band operation. The resonators (204, 208; 224, 228) can be positioned either side by side or vertically relative to each other.
-
公开(公告)号：BR9606654A
公开(公告)日：1997-09-30
申请号：BR9606654
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.
-
公开(公告)号：FI971686A0
公开(公告)日：1997-04-18
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.
-
Patent Agency Ranking
公开(公告)号：CA2343729C
公开(公告)日：2009-05-19
申请号：CA2343729
申请日：1999-09-07
Applicant: QUALCOMM INC
Inventor： TASSOUDJI MOHAMMAD ALI , OZAKI ERNEST T , LIN YI-CHENG
Abstract: A dielectric resonator an-tenna (100) having a resonator (104) formed from a dielectric material mounted on a ground plane (108). The ground plane (108) is formed from a conduc-tive material. First and second probes (112, 116) are electrically coupled to the resonator (104) for providing first and second sig-nals, respectively, to or receiv-ing from the resonator (104). The first and second probes (112, 166) are spaced apart from each other. The first and second probes (112, 116) are formed of conductive strips that are electrically con-nected to the perimeter of the resonator (104) and are substan-tially orthogonal with respect to the ground plane (108). The first and second signals have equal am-plitude, but 90 degrees phase dif-ference with respect to each other, to produce a circularly polarised radiation pattern. A dual band antenna (200, 220) can be con-structed by positioning and con-necting two dielectric resonator antennas (204, 208; 224, 228) together. Each resonator (204, 208; 224, 228) in the dual band configuration (200, 220) resonates at a particular frequency, thereby providing dual band operation. The resonators (204, 208; 224, 228) can be positioned either side by side or vertically relative to each other.
-
公开(公告)号：HK1041369A1
公开(公告)日：2002-07-05
申请号：HK02102350
申请日：2002-03-27
Applicant: QUALCOMM INC
Inventor： TASSOUDJI MOHAMMAD ALI , OZAKI ERNEST T , LIN YI-CHENG
Abstract: A dielectric resonator antenna (100) having a resonator (104) formed from a dielectric material mounted on a ground plane (108). The ground plane (108) is formed from a conductive material. First and second probes (112, 116) are electrically coupled to the resonator (104) for providing first and second signals, respectively, to or receiving from the resonator (104). The first and second probes (112, 166) are spaced apart from each other. The first and second probes (112, 116) are formed of conductive strips that are electrically connected to the perimeter of the resonator (104) and are substantially orthogonal with respect to the ground plane (108). The first and second signals have equal amplitude, but 90 degrees phase difference with respect to each other, to produce a circularly polarised radiation pattern. A dual band antenna (200, 220) can be constructed by positioning and connecting two dielectric resonator antennas (204, 208; 224, 228) together. Each resonator (204, 208; 224, 228) in the dual band configuration (200, 220) resonates at a particular frequency, thereby providing dual band operation. The resonators (204, 208; 224, 228) can be positioned either side by side or vertically relative to each other.
-
公开(公告)号：AU1185299A
公开(公告)日：1999-04-23
申请号：AU1185299
申请日：1998-09-25
Applicant: QUALCOMM INC
Inventor： THOMPSON JAMES H , PANTON WILLIAM R , TASSOUDJI MOHAMMAD ALI
Abstract: Apparatus and method for using multiple receive antennas (420A, 420B) in a satellite communication system (100) receiver (500, 700, 900) to mitigate the effects of specular reflection (202B, 402B) of a received signal (202A, 402A). The system includes first and second antennas (420A, 420B), for receiving a satellite communication signal along first and second direct (202A, 402A) and specular propagation paths (202B, 402B), respectively, and a digital maximal ration combiner (520) for combining the signals (202A, 202B, 402A, 402B, 420A, 420B) so as to maximize the signal-to-noise of the resultant combined signal.
-
公开(公告)号：CA2303540A1
公开(公告)日：1999-04-08
申请号：CA2303540
申请日：1998-09-25
Applicant: QUALCOMM INC
Inventor： TASSOUDJI MOHAMMAD ALI , THOMPSON JAMES H , PANTON WILLIAM R
Abstract: Apparatus and method for using multiple receive antennas (420A, 420B) in a satellite communication system (100) receiver (500, 700, 900) to mitigate the effects of specular reflection (202B, 402B) of a received signal (202A, 402A). The system includes first and second antennas (420A, 420B), for receiving a satellite communication signal along first and second direct (202A, 402A) and specular propagation paths (202B, 402B), respectively, and a digital maximal ration combiner (520) for combining the signals (202A, 202B, 402A, 402B, 420A, 420B) so as to maximize the signal-to-noise of the resultant combined signal.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
14
records
(took 0.026 seconds)
