HIGH IP3 WiMAX MIXERS
HIGH IP3 WiMAX MIXERS
Noise tutorial
Objects capable of allowing the flow of electrical current will exhibit noise. This occurs as some electrons will have a random motion, causing fluctuating voltage and currents.
Phase noise
The most important parameter in many oscillators and it deserves an in-depth discussion on what it is, how it affects a system and how it can be minimised in an oscillator design.
Noise Matching
Notes on Noise Matching.
Random Noise Contribution to Timing JitterTheory and Practice
Numerous factors affect random timing jitter, including noise sources such as phase noise, broadband noise, and spurs, as well as slew rate and bandwidth. This article explores these sources, and also provides equations to translate noise into timing jitter.
QPSK Modulation Demystified
Readers are presented with step-by-step derivations showing the operation of QPSK modulation and demodulation. The transition from analog communication to digital has advanced the use of QPSK. Euler's relation is used to assist analysis of multiplication of sine and cosine signals.
OOK, ASK and FSK Modulation in the Presence of an Interfering signal
OOK modulation is a very popular modulation used in control applications.This is in part due to its simplicity and low implementation costs.
PLSK vs. DPSK in Four Wave Mixing Crosstalk
Notes on PLSK vs. DPSK in Four Wave Mixing Crosstalk.
Mixers basic
A Mixer is an analogue device that can multiply two signals together and also provides the difference of the two signals. They are composed of a non-linear device (a diode or a transistor) and passive couplers devices to inject the input mixing signals into the non-linear device that will perform the mixing.
Mixer
Mixers are found in virtually all wireless communication sys- tems. They are frequency translating devices that convert input signals from one frequency to another by mixing these signals with another signal of known frequency.
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