Designing Radio Frequency RF Filters
As we discussed in this article, filters are a key building block used for eliminating signals that can interfere with the operation of Software-defined radio. An FM notch filter for …
What is Noise Figure?
The Noise figure of an RF component such as a low noise amplifier or a mixer is a measure of how much it increases the noise in a system that …
Getting started with FPGAs
Field programmable gate arrays (FPGAs) are a special type of integrated circuit that consists of logic gates and memory blocks that can be configured with code to implement digital computations. …
RF Explorer and Software-defined Radio
Most software-defined radios on the market today are designed for communication applications. When receiving signals, they are used primarily for signal processing including demodulation and decoding. SDRs are not designed …
What is IP3?
When two RF signals are input to an RF component such as an LNA or a Mixer, it results in the creation of other mathematically-related, spurious signals. This is a …