Weakly coupled based harmonic rejection filter for feedback linearization power amplifier

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United States of America Patent

PATENT NO 9966905
SERIAL NO

14215800

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Abstract

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Radio frequency (RF) filters configured to filter undesired signal components (e.g., noise and harmonics) from RF signals are disclosed. In one embodiment, an RF filter includes a first inductor coil having a first winding and a second inductor coil having a second winding and a third winding. The second winding of the second inductor coil is configured to have a first mutual magnetic coupling with the first winding, while the third winding of the second inductor coil is configured to have a second mutual magnetic coupling with the first winding. The second winding is connected to the third winding such that the first mutual magnetic coupling and the second mutual magnetic coupling are in opposition. In this manner, the first inductor coil and the second inductor coil may be provided in a compact arrangement while providing weak mutual magnetic coupling between the first inductor coil and the second inductor coil.

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Patent Owner(s)

Patent OwnerAddress
QORVO US INC7628 THORNDIKE ROAD GREENSBORO NC 27409

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Danny W San Francisco, US 6 56
Leipold, Dirk Robert Walter San Jose, US 171 4684
Maxim, George Saratoga, US 191 4589
Scott, Baker San Jose, US 199 5011

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