Customized audio/antenna module and method for making the same
The present invention relates to a method for assembling a self-contained audio/antenna module for a portable communication device, the method comprising the steps of incorporating, into the audio/antenna module, one or more transducers, said incorporation comprising, for at least one transducer, the steps of custom designing and implementing a membrane structure for the at least one transducer in accordance with design constrains provided by an audio/antenna module casing, and incorporating a standard, prefabricated magnetic circuit into the audio/antenna module, said magnetic circuit being adapted to displace the membrane structure of the at least one transducer in accordance with incoming audio drive signals. The invention further relates to an audio/antenna module manufactured according to the above-mentioned method.
1. An audio/antenna module for a portable communication device, the audio/antenna module comprising one or more transducers and a RF antenna, wherein each of the one or more transducers comprises:
a membrane structure implemented in accordance with design constrains provided by the audio/antenna module so that the size of the membrane is maximized in accordance with the available space in the audio/antenna module, the membrane structure being attached to the audio/antenna module;
a standard, prefabricated magnetic circuit being adapted to displace the membrane structure in accordance with incoming audio drive signals, wherein at least part of the magnetic circuit forms part of an exterior surface portion of the audio/antenna module; and
wherein the magnetic circuit is positioned at one exterior surface of the audio/antenna module whereas the RF antenna is positioned on or at an oppositely arranged exterior surface of the audio/antenna module.
2. An audio/antenna module according to claim 1 , wherein the RF antenna is suitable for communication in the 0.1-10 GHz range.
3. An audio/antenna module according to claim 2 , wherein the RF antenna comprises a flex-print carrying an antenna structure thereon.
4. An audio/antenna module according to claim 1 , wherein the membrane structure comprises a dome-shaped membrane.
5. An audio/antenna module according to claim 1 , wherein the membrane structure exhibits at least two distinct mechanical eigenmodes.
6. An audio/antenna module according to claim 5 , wherein the at least two distinct mechanical eigenmodes are defined by at least two substantially perpendicular directions defined by the membrane structure.
7. An audio/antenna module according to claim 1 , wherein an interior portion of the audio/antenna module casing forms an acoustic back-chamber for the transducer.