The output power and efficiency of a power amplifier (PA) are highly dependent on its load terminations. Learn how to characterize a PA's performance by analyzing load lines and estimating the load-pull contours of constant output power.
January 05, 2024 by Dr. Steve Arar
RF amplifier design is a challenging task, involving trade-offs between linearity, efficiency, gain, and output power. Here, we examine how a common-emitter circuit can, or can't, function as a power amplifier.
December 22, 2023 by Dr. Steve Arar
Learn how whitening filters solve problems in low-power radios when transmitting long identical bit sequences. Explore their significance in protocols like BLE and ZigBee.
August 02, 2023 by Nthatisi Hlapisi
In this article, we discuss another methodology of how to model ADCs in system simulations, this time by using the effective number of bits and also adjusting our ADC by introducing a 5th order polynomial to the ideal quantizer input.
February 28, 2021 by Wes Brodsky
In this article, we'll discuss the requirements for an analog IQ modulator and demodulator, and then the requirements for DACs and ADCs used at baseband (for an analog IQ approach) and for DACs and ADCs used at RF (for a digital IQ approach).
February 24, 2021 by Wes Brodsky