1.
    发明专利
    未知

    公开(公告)号:DE60218725T2

    公开(公告)日:2007-11-15

    申请号:DE60218725

    申请日:2002-11-20

    Applicant: QUALCOMM INC

    Abstract: An antenna sharing system and method. In the illustrative embodiment, the inventive system includes a first matching network coupled to a first circuit; a second matching network coupled to a second circuit; and a switch having a first throw coupled to the first network, a second throw coupled to the second network, and a pole coupled to the antenna. In the specific implementation, the first circuit is a cellular subsystem and the second circuit is a Global Positioning System subsystem. The system further includes a controller for selectively actuating the switch whereby the first network is coupled to the antenna in a first operational mode and the second network is coupled to the antenna in a second operational mode. In the illustrative implementation, the first network provides an impedance match to the switch and the antenna with respect to the first circuit. The second network provides an impedance match to the switch and the antenna with respect to the second circuit. In the preferred embodiment, the invention includes a first diplexer network coupled to a first circuit; a second diplexer network coupled to a second circuit; and an antenna match which incorporates a shunt SPST switch to shift the matching frequency between the cellular (or PCS) and GPS bands.

    2.
    发明专利
    未知

    公开(公告)号:DE60218725D1

    公开(公告)日:2007-04-19

    申请号:DE60218725

    申请日:2002-11-20

    Applicant: QUALCOMM INC

    Abstract: An antenna sharing system and method. In the illustrative embodiment, the inventive system includes a first matching network coupled to a first circuit; a second matching network coupled to a second circuit; and a switch having a first throw coupled to the first network, a second throw coupled to the second network, and a pole coupled to the antenna. In the specific implementation, the first circuit is a cellular subsystem and the second circuit is a Global Positioning System subsystem. The system further includes a controller for selectively actuating the switch whereby the first network is coupled to the antenna in a first operational mode and the second network is coupled to the antenna in a second operational mode. In the illustrative implementation, the first network provides an impedance match to the switch and the antenna with respect to the first circuit. The second network provides an impedance match to the switch and the antenna with respect to the second circuit. In the preferred embodiment, the invention includes a first diplexer network coupled to a first circuit; a second diplexer network coupled to a second circuit; and an antenna match which incorporates a shunt SPST switch to shift the matching frequency between the cellular (or PCS) and GPS bands.

    3.
    发明专利
    未知

    公开(公告)号:AT356447T

    公开(公告)日:2007-03-15

    申请号:AT02784532

    申请日:2002-11-20

    Applicant: QUALCOMM INC

    Abstract: An antenna sharing system and method. In the illustrative embodiment, the inventive system includes a first matching network coupled to a first circuit; a second matching network coupled to a second circuit; and a switch having a first throw coupled to the first network, a second throw coupled to the second network, and a pole coupled to the antenna. In the specific implementation, the first circuit is a cellular subsystem and the second circuit is a Global Positioning System subsystem. The system further includes a controller for selectively actuating the switch whereby the first network is coupled to the antenna in a first operational mode and the second network is coupled to the antenna in a second operational mode. In the illustrative implementation, the first network provides an impedance match to the switch and the antenna with respect to the first circuit. The second network provides an impedance match to the switch and the antenna with respect to the second circuit. In the preferred embodiment, the invention includes a first diplexer network coupled to a first circuit; a second diplexer network coupled to a second circuit; and an antenna match which incorporates a shunt SPST switch to shift the matching frequency between the cellular (or PCS) and GPS bands.

    4.
    发明专利
    未知

    公开(公告)号:BR9606576A

    公开(公告)日:1998-05-26

    申请号:BR9606576

    申请日:1996-08-09

    Applicant: QUALCOMM INC

    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 .

    5.
    发明专利
    未知

    公开(公告)号:FI971463A0

    公开(公告)日:1997-04-08

    申请号:FI971463

    申请日:1997-04-08

    Applicant: QUALCOMM INC

    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 .

    TELEFONO MOVIL EQUIPADO CON GPS QUE USA UN CONMUTADOR MEMS SPDT Y UNA UNICA ANTENA COMPARTIDA.

    公开(公告)号:ES2281555T3

    公开(公告)日:2007-10-01

    申请号:ES02784532

    申请日:2002-11-20

    Applicant: QUALCOMM INC

    Abstract: Un sistema para compartir antena para el uso con una antena que comprende: un primer diplexor (17) acoplado entre dicha antena y un primer circuito (20); un segundo diplexor (19) acoplado entre dicha antena y un segundo circuito (22); caracterizado por una red (15) de adaptación de antena conmutable acoplada entre dicha antena y dichos diplexores primero y segundo (17, 19), en el que dicha red (15) de adaptación de antena comprende una red inductiva/capacitiva y un conmutador (13a) adaptado para cambiar la frecuencia de adaptación de antena entre la del primer circuito (20) y la del segundo circuito (22), en el que dicho primer circuito (20) es un subsistema celular o PCS y en el que dicho segundo circuito (22) es un subsistema del sistema de posicionamiento global "GPS".

    GPS EQUIPPED CELLULAR PHONE USING A SPDT MEMS SWITCH AND SINGLE SHARED ANTENNA

    公开(公告)号:AU2002346468A1

    公开(公告)日:2003-06-10

    申请号:AU2002346468

    申请日:2002-11-20

    Applicant: QUALCOMM INC

    Abstract: An antenna sharing system and method. In the illustrative embodiment, the inventive system includes a first matching network coupled to a first circuit; a second matching network coupled to a second circuit; and a switch having a first throw coupled to the first network, a second throw coupled to the second network, and a pole coupled to the antenna. In the specific implementation, the first circuit is a cellular subsystem and the second circuit is a Global Positioning System subsystem. The system further includes a controller for selectively actuating the switch whereby the first network is coupled to the antenna in a first operational mode and the second network is coupled to the antenna in a second operational mode. In the illustrative implementation, the first network provides an impedance match to the switch and the antenna with respect to the first circuit. The second network provides an impedance match to the switch and the antenna with respect to the second circuit. In the preferred embodiment, the invention includes a first diplexer network coupled to a first circuit; a second diplexer network coupled to a second circuit; and an antenna match which incorporates a shunt SPST switch to shift the matching frequency between the cellular (or PCS) and GPS bands.

    8.
    发明专利
    未知

    公开(公告)号:FI971463A

    公开(公告)日:1997-06-09

    申请号:FI971463

    申请日:1997-04-08

    Applicant: QUALCOMM INC

    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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