公开(公告)号：FR2742948A1

公开(公告)日：1997-06-27

申请号：FR9615497

申请日：1996-12-17

Applicant: MOTOROLA INC

Inventor： THOMPSON DAVID C ,  KIM JIN D ,  HASSEMER BRIAN J

IPC: H04B1/40 ,  H01Q1/24 ,  H01Q9/36 ,  H01Q11/08 ,  H04B1/04 ,  H04B1/18 ,  H04B1/38 ,  H04Q7/32 ,  H04M1/02 ,  H04M1/72 ,  H04Q7/20

Abstract: A wireless communication device (20) provides a matching state between a radio circuit (28) and an antenna assembly (26) in both its retracted and extended positions, and does so with an elegant design that increases reliability and manufacturability by reducing the number and complexity of components and moving mechanical parts. A matching circuit (30), which is reconfigured according to a switch (32) that is responsive to the antenna's position, provides the matching states.

公开(公告)号：SG33483A1

公开(公告)日：1996-10-18

申请号：SG1995001314

申请日：1995-09-08

Applicant: MOTOROLA INC

Inventor： THOMPSON DAVID C ,  PHILLIPS JAMES P ,  VANNATTA LOUIS J

IPC: H01Q1/24 ,  H04Q7/32

公开(公告)号：FR2724772A1

公开(公告)日：1996-03-22

申请号：FR9510434

申请日：1995-09-06

Applicant: MOTOROLA INC

Inventor： VANNATTA LOUIS J ,  THOMPSON DAVID C ,  PHILLIPS JAMES P

IPC: H01Q1/08 ,  H01Q1/24 ,  H01Q23/00 ,  H01Q1/27 ,  H04B7/26

Abstract: A radio communication device (100) includes radio frequency circuitry (415) positioned in the first housing portion (101). A second housing portion (103) is movably supported on the first housing portion to move between an extended open position and a collapsed position, the second housing portion projecting outwardly from the first housing portion in the open position. An antenna assembly (107) is positioned in the second housing portion. The antenna assembly includes an antenna conductor (542) and a flexible ground member (544), the ground member positioned between the antenna conductor and the radio frequency circuitry when the first and second housing portions are in the collapsed position.

公开(公告)号：DE19719359C2

公开(公告)日：2003-06-12

申请号：DE19719359

申请日：1997-05-07

Applicant: MOTOROLA INC

Inventor： PENNOCK MARK A ,  THOMPSON DAVID C

IPC: H04B1/04 ,  H04B7/005 ,  H04W52/00 ,  H04W52/36 ,  H04B1/40 ,  H03L5/02 ,  G08C17/02 ,  H04Q7/34 ,  G01R21/00

Abstract: A transmitter (135) responds to a first control signal by outputting a transmit signal at a transmit power according to the first control signal. A power-level detector (149) responds to the transmit power by outputting a second control signal representative of a power level of the transmit power. A sensing network (159) is capable of changing from one state to another state in response to a stimulus, for example, the position of a retractable antenna (101) or attachment of a connector (113) or both. The sensing network may modify the second control signal depending upon the state of the sensing circuit. A controller (161) responds to the second control signal, whether modified or not, by determining the first control signal according to the second control signal.

公开(公告)号：GB2305782B

公开(公告)日：2000-05-10

申请号：GB9619773

申请日：1996-09-23

Applicant: MOTOROLA INC

Inventor： THOMPSON DAVID C ,  KIM JIN DONG ,  POWLES JON J

IPC: H01Q1/10 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q9/32 ,  H01Q11/08 ,  H04B1/38

Abstract: A retractable antenna assembly provides a substantially matched antenna impedance to a matching circuit (712) of a radiotelephone (200) whether the retractable antenna assembly is in the extended position or the retracted position. In one embodiment parts (304, 312) of a capacitor (714) are integrally formed on an upper portion of the retractable antenna assembly (206) such that when in the retracted position the capacitor (714) contributes to the overall antenna impedance. In another embodiment a capacitor (1302) is integrally formed on the lower portion of the retractable antenna assembly (900).

公开(公告)号：AU713057B2

公开(公告)日：1999-11-25

申请号：AU7428196

申请日：1996-12-12

Applicant: MOTOROLA INC

Inventor： THOMPSON DAVID C ,  KIM JIN D ,  HASSEMER BRIAN JON

IPC: H04B1/40 ,  H01Q1/24 ,  H01Q9/36 ,  H01Q11/08 ,  H04B1/04 ,  H04B1/18 ,  H04B1/38 ,  H04Q7/32 ,  H04B1/034

Abstract: A wireless communication device (20) provides a matching state between a radio circuit (28) and an antenna assembly (26) in both its retracted and extended positions, and does so with an elegant design that increases reliability and manufacturability by reducing the number and complexity of components and moving mechanical parts. A matching circuit (30), which is reconfigured according to a switch (32) that is responsive to the antenna's position, provides the matching states.

公开(公告)号：GB2308744B

公开(公告)日：1999-08-11

申请号：GB9625360

申请日：1996-12-05

Applicant: MOTOROLA INC

Inventor： THOMPSON DAVID C ,  KIM JIM D ,  HASSEMER BRIAN J

IPC: H04B1/40 ,  H01Q1/24 ,  H01Q9/36 ,  H01Q11/08 ,  H04B1/04 ,  H04B1/18 ,  H04B1/38 ,  H04Q7/32 ,  H01Q1/10

Abstract: A wireless communication device (20) provides a matching state between a radio circuit (28) and an antenna assembly (26) in both its retracted and extended positions, and does so with an elegant design that increases reliability and manufacturability by reducing the number and complexity of components and moving mechanical parts. A matching circuit (30), which is reconfigured according to a switch (32) that is responsive to the antenna's position, provides the matching states.

公开(公告)号：FR2739498B1

公开(公告)日：1998-11-20

申请号：FR9611296

申请日：1996-09-17

Applicant: MOTOROLA INC

Inventor： THOMPSON DAVID C ,  KIM JIN D ,  POWLES JON J

IPC: H01Q1/10 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q9/32 ,  H01Q11/08 ,  H04B1/38 ,  H01Q23/00 ,  H04M1/02 ,  H04Q7/20

Abstract: A retractable antenna assembly provides a substantially matched antenna impedance to a matching circuit (712) of a radiotelephone (200) whether the retractable antenna assembly is in the extended position or the retracted position. In one embodiment parts (304, 312) of a capacitor (714) are integrally formed on an upper portion of the retractable antenna assembly (206) such that when in the retracted position the capacitor (714) contributes to the overall antenna impedance. In another embodiment a capacitor (1302) is integrally formed on the lower portion of the retractable antenna assembly (900).

公开(公告)号：IT1286324B1

公开(公告)日：1998-07-08

申请号：ITRM960648

申请日：1996-09-23

Applicant: MOTOROLA INC

Inventor： THOMPSON DAVID C ,  KIM JIN DONG ,  POWLES JON J

IPC: H01Q1/10 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q9/32 ,  H01Q11/08 ,  H04B1/38

Abstract: A retractable antenna assembly provides a substantially matched antenna impedance to a matching circuit (712) of a radiotelephone (200) whether the retractable antenna assembly is in the extended position or the retracted position. In one embodiment parts (304, 312) of a capacitor (714) are integrally formed on an upper portion of the retractable antenna assembly (206) such that when in the retracted position the capacitor (714) contributes to the overall antenna impedance. In another embodiment a capacitor (1302) is integrally formed on the lower portion of the retractable antenna assembly (900).

公开(公告)号：BR9604730A

公开(公告)日：1998-06-23

申请号：BR9604730

申请日：1996-12-19

Applicant: MOTOROLA INC

Inventor： HASSEMER BRIAN J ,  KIM JIN D ,  THOMPSON DAVID C

IPC: H04B1/40 ,  H01Q1/24 ,  H01Q9/36 ,  H01Q11/08 ,  H04B1/04 ,  H04B1/18 ,  H04B1/38 ,  H04Q7/32

Abstract: A wireless communication device (20) provides a matching state between a radio circuit (28) and an antenna assembly (26) in both its retracted and extended positions, and does so with an elegant design that increases reliability and manufacturability by reducing the number and complexity of components and moving mechanical parts. A matching circuit (30), which is reconfigured according to a switch (32) that is responsive to the antenna's position, provides the matching states.