MOBILE WIRELESS COMMUNICATIONS DEVICE HAVING IMPROVED ANTENNA IMPEDANCE MATCH AND ANTENNA GAIN FROM RF ENERGY
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0 Petitions
Accused Products
Abstract
A mobile wireless communications device and associated method of making same includes a housing and circuit board having a ground plane. Radio frequency (RF) circuitry and a processor are carried by the circuit board and operative with each other. An antenna is carried by the housing and operative with the RF circuitry. Audio circuitry is carried by the circuit board and operative with the RF circuitry and processor. An audio transducer assembly such as a receiver is carried by the circuit board and engages audio circuitry for carrying audio signals between the audio circuitry and speaker. A filter is mounted at the speaker for blocking RF energy from the antenna through the speaker to the ground plane and decoupling the antenna from the speaker and any other components on the circuit board to minimize any detuning of antenna impedance match and degradation in antenna gain.
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Citations
50 Claims
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1-28. -28. (canceled)
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29. A mobile wireless communications device comprising:
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a housing; a plurality of circuit boards carried by the housing, wherein at least one of said circuit boards has a ground plane; radio frequency (RF) circuitry and a processor operative with each other and carried by at least one of the circuit boards; an antenna carried by the housing and operative with the RF circuitry; audio circuitry carried by at least one of the circuit boards and operative with the RF circuitry and processor; an audio transducer assembly comprising an audio transducer housing and carried by a circuit board having a ground plane and having electrical contact pads that electrically engage audio circuitry for carrying audio signals between the audio circuitry and the audio transducer assembly; and at least one filter mounted at the audio transducer assembly and configured for blocking RF energy from the antenna through the audio transducer assembly to the ground plane and decoupling the antenna from the audio transducer assembly and any other components on the at least one circuit board to minimize any detuning of antenna impedance match and degradation in antenna gain, wherein said at least one filter is at least one of serially connected within the audio transducer housing and connected between the audio transducer housing and the contact pads. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method of making a mobile wireless communications device, which comprises:
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providing a housing, a plurality of circuit boards carried by the housing, wherein at least one said circuit boards has a ground plane, radio frequency (RF) circuitry and a processor operative with each other and carried by at least one of the circuit boards, an antenna carried by the housing and operative with the RF circuitry, audio circuitry carried by at least one of the circuit boards and operative with the RF circuitry and processor, and an audio transducer assembly as an audio transducer housing and carried by a circuit board having a ground plane and having electrical contact pads that electrically engage audio circuitry for carrying audio signals between the audio circuitry and the audio transducer assembly; and mounting at least one filter at the audio transducer assembly for blocking RF energy from the antenna through the audio transducer housing to the ground plane and decoupling the antenna from the speaker and any other components on the circuit board to minimize any detuning of antenna impedance match and degradation in antenna gain, wherein the at least one filter is at least one of serially connected within the audio transducer housing and connected between the audio transducer housing and the contact pads. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification