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公开(公告)号：DE69920446T2
公开(公告)日：2005-01-27
申请号：DE69920446
申请日：1999-06-01
Applicant: MOTOROLA INC
Inventor： SHAPIRO GARY , BLACK GREG , NEWELL MICHAEL
IPC: H03F3/60
Abstract: A power amplifier output module 200 having low insertion loss and self-shielding properties for dual-mode digital systems is provided. Module 200 has a first power amplifier drive circuit comprising a first power amplifier 220 and a first output impedance matching network having integrated suppression of higher order harmonics 222. A second power amplifier drive circuit comprising a second power amplifier 224 and a second output impedance matching network having integrated suppression of higher order harmonics 226 is also provided. Module 200 also comprises a single diplexer 228 coupled to the first impedance matching network and the second impedance matching network. Module 200 also comprises a single broadband directional coupler 230, coupled to the diplexer 228, for coupling both the first power amplifier drive circuit and the second power amplifier drive circuit. Module 200 provides an integrated solution involving greater performance in a smaller package.
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Patent Agency Ranking
公开(公告)号：DE69920446D1
公开(公告)日：2004-10-28
申请号：DE69920446
申请日：1999-06-01
Applicant: MOTOROLA INC
Inventor： SHAPIRO GARY , BLACK GREG , NEWELL MICHAEL
IPC: H03F3/60
Abstract: A power amplifier output module 200 having low insertion loss and self-shielding properties for dual-mode digital systems is provided. Module 200 has a first power amplifier drive circuit comprising a first power amplifier 220 and a first output impedance matching network having integrated suppression of higher order harmonics 222. A second power amplifier drive circuit comprising a second power amplifier 224 and a second output impedance matching network having integrated suppression of higher order harmonics 226 is also provided. Module 200 also comprises a single diplexer 228 coupled to the first impedance matching network and the second impedance matching network. Module 200 also comprises a single broadband directional coupler 230, coupled to the diplexer 228, for coupling both the first power amplifier drive circuit and the second power amplifier drive circuit. Module 200 provides an integrated solution involving greater performance in a smaller package.
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公开(公告)号：GB2258348A
公开(公告)日：1993-02-03
申请号：GB9216190
申请日：1992-07-30
Applicant: MOTOROLA INC
Inventor： NEWELL MICHAEL , KIM JIN DONG , MOUTRIE MICHAEL F
Abstract: A dielectric block filter assembly which is surface-mounted upon a circuit board. The circuit board includes an opening formed to extend therethrough, and parallel-extending projecting members, formed of a portion of the printed circuit board, which extend into the opening formed to extend through the circuit board. The dielectric block filter includes a bottom mounting surface having notches corresponding to the projecting members. Each notch includes a seating surface for seating against corresponding ones of the projecting members in mated engagement therewith.
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公开(公告)号：GB2258348B
公开(公告)日：1996-03-06
申请号：GB9216190
申请日：1992-07-30
Applicant: MOTOROLA INC
Inventor： NEWELL MICHAEL , KIM JIN DONG , MOUTRIE MICHAEL F
Abstract: A dielectric block filter assembly which is surface-mounted upon a circuit board. The circuit board includes an opening formed to extend therethrough, and parallel-extending projecting members, formed of a portion of the printed circuit board, which extend into the opening formed to extend through the circuit board. The dielectric block filter includes a bottom mounting surface having notches corresponding to the projecting members. Each notch includes a seating surface for seating against corresponding ones of the projecting members in mated engagement therewith.
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公开(公告)号：AU2998595A
公开(公告)日：1996-03-07
申请号：AU2998595
申请日：1995-06-26
Applicant: MOTOROLA INC
Inventor： HEINE DAVID , SOKOLA RAY , NEWELL MICHAEL
Abstract: A filter (102) with an adjustable shunt zero. The filter (102) has a predetermined passband and stopband, and an input (104) and an output (106), and a variable reactance element (108) for adjusting the stopband frequency of maximum attenuation, also defined as a shunt zero, coupled to at least one of the input (104) and the output (106) of the filter (102), whereby the shunt zero is adjustable over a range of frequencies.
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公开(公告)号：EP0723709A4
公开(公告)日：1996-12-27
申请号：EP95926113
申请日：1995-06-26
Applicant: MOTOROLA INC
Inventor： HEINE DAVID , SOKOLA RAY , NEWELL MICHAEL
CPC classification number: H01P1/2056
Abstract: A filter (102) with an adjustable shunt zero. The filter (102) has a predetermined passband and stopband, and an input (104) and an output (106), and a variable reactance element (108) for adjusting the stopband frequency of maximum attenuation, also defined as a shunt zero, coupled to at least one of the input (104) and the output (106) of the filter (102), whereby the shunt zero is adjustable over a range of frequencies.
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