Mobile wireless communications device having improved antenna impedance match and antenna gain from RF energy
First Claim
1. A mobile wireless communications device comprising:
- a housing;
a circuit board having a ground plane and carried by the housing;
radio frequency (RF) circuitry and a processor operative with each other and carried by the circuit board;
an antenna carried by the housing and operative with the RF circuitry;
audio circuitry carried by the circuit board and operative with the RF circuitry and processor;
an audio transducer assembly carried by the circuit board and having electrical contacts that electrically engage audio circuitry for carrying audio signals between the audio circuitry and the audio transducer assembly; and
a filter mounted at the audio transducer assembly 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 circuit board to minimize any detuning of antenna impedance match and degradation in antenna gain.
7 Assignments
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
28 Claims
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1. A mobile wireless communications device comprising:
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a housing;
a circuit board having a ground plane and carried by the housing;
radio frequency (RF) circuitry and a processor operative with each other and carried by the circuit board;
an antenna carried by the housing and operative with the RF circuitry;
audio circuitry carried by the circuit board and operative with the RF circuitry and processor;
an audio transducer assembly carried by the circuit board and having electrical contacts that electrically engage audio circuitry for carrying audio signals between the audio circuitry and the audio transducer assembly; and
a filter mounted at the audio transducer assembly 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 circuit board to minimize any detuning of antenna impedance match and degradation in antenna gain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile wireless communications device comprising:
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a housing;
a circuit board having a ground plane and carried by the housing;
radio frequency (RF) circuitry and a processor operative with each other and carried by the circuit board opposite the ground plane;
an antenna carried by the housing and operative with the RF circuitry;
audio circuitry carried by the circuit board and operative with the RF circuitry and processor and including a receiver audio switch and audio connection lines carried by the circuit board and interconnecting the RF circuitry, processor and receiver audio switch;
a speaker carried by the circuit board and having electrical contacts that electrically engage the audio connection lines for carrying audio signals between the audio circuitry and speaker; and
a filter 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. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of making a mobile wireless communications device, which comprises:
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providing a housing, a circuit board having a ground plane and carried by the housing, radio frequency (RF) circuitry and a processor operative with each other and carried by the circuit board, an antenna carried by the housing and operative with the RF circuitry, audio circuitry carried by the circuit board and operative with the RF circuitry and processor, and an audio transducer assembly carried by the circuit board and having electrical contacts that electrically engage audio circuitry for carrying audio signals between the audio circuitry and the audio transducer assembly; and
mounting a filter at the audio transducer assembly 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. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification