by Thomas Clupper, W. L. Gore and Associates
Today’s RF engineers are faced with new challenges when designing wireless communications devices. Modern cell phones have incorporated many features such as cameras, large multimedia displays, and multifrequency and multimode operation in smaller form factors than previously were available.
Even in the GPS and satellite radio markets devices are smaller and more integrated. For instance, miniature antenna technologies from companies like Sarantel Plc accommodate compact portable, Bluetooth®-enabled GPS receivers.
This trend has driven RF engineers to require that PCBs have integrated shielding at the board level. This ensures that the circuit is fully operational and compliant as a stand-alone component of the wireless device.
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