Patent ID: 8805316
Filing Date: 2014-08-12
Classification: H01L,H03D,H04B

Abstract:
1. A method of manufacture of a passive image reject mixer (IRM) comprising: forming in a silicon manufacturing process a first passive multiplier configured to receive RF+ and RF− input signals, LO+ and LO− input signals, and further configured to provide I IF+ and I IF− output signals; forming in the silicon manufacturing process a second passive multiplier configured to receive the RF+ and RF− input signals, phase shifted LO+ and phase shifted LO− signals, and further configured to provide Q IF+ and Q IF− output signals; forming in the silicon manufacturing process a first passive filter configured to receive on its input the I IF+ and the Q IF+ output signals and to generate an IF+ output signal on its output; and forming in the silicon manufacturing process a second passive filter configured to receive on its input the I IF− and Q IF− signals and to generate on its output an IF− output signal.