I’s and Q’s and negative frequencies, oh my! Today we discuss mixers and frequency conversion, in particular, quadrature mixers and Tayloe detectors: what they are, how they work, why you might want one, and what do we use all this I and Q stuff for anyhow?
|Introduction to RF mixers||Basics of RF Mixers in Radio Receivers, Alan Wolke (W2AEW)|
|Mixer theory and switching mixer operation||Downconversion Mixers, Gino Giusi, Ph.D|
|Introduction to IQ signals and phasor diagrams||Basics of IQ Signals and IQ modulation & demodulation – a tutorial, Alan Wolke (W2AEW)|
|IQ signal processing fundamentals, Euler’s identities||A Quadrature Signals Tutorial: Complex, But Not Complicated, Richard Lyons|
|IQ phase relationships at positive and negative frequencies||IQ Modulation, Keysight Technologies|
|The Tayloe quadrature detector||Ultra Low Noise, High Performance, Zero IF Quadrature Product Detector and Preamplifier, Dan Tayloe|