Overlapped inductors and its application on a shared RF front-end in a MultiStandard IC
2011
A technique to build overlapped inductors at the same location while keeping good isolation between them is presented. The key idea is to use magnetic and electric cancellation to reduce coupling. A shared LNA for WiFi and Bluetooth (BT) applications using the overlapped inductor is proposed. It enables independent gain control up to the first RF stage in a receiver so that the system integration complexity is reduced.
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