Home | Microwaves & RF
WEBMicrowaves & RF reports on the latest insights, news, and advancements in the wireless industry, and the microwave and radio-frequency engineering world.
RF Demystified: What is an RF Attenuator? - Microwaves & RF
WEBSep 19, 2022 · The attenuator is a control component, the main function of which is to reduce the strength of the signal passing through it. This type of component is generally used to balance signal levels in the signal chain, to extend the dynamic range of a system; provide impedance matching; and implement various calibration techniques in the end ...
Understanding Mixers and Their Parameters - Microwaves & RF
WEBJul 8, 2015 · Understanding Mixers and Their Parameters. Mixers remain an important part of most RF/microwave systems, prompting the need to understand this vital component and its parameters. Download this article in .PDF format. A mixer is a three-port component, which performs the task of frequency conversion. Mixers translate the frequency of …
Introduction to RF & Wireless Communications Systems
WEBOct 13, 2017 · RF itself has become synonymous with wireless and high-frequency signals, describing anything from AM radio between 535 kHz and 1605 kHz to computer local area networks (LANs) at 2.4 GHz. However, RF has traditionally defined frequencies from a few kHz to roughly 1 GHz. If one considers microwave frequencies as RF, this range extends to …
Pulsed vs. CW Signals: Both Loom on a Designer’s Radar
WEBJun 14, 2018 · A pulsed radar system typically provides greater measurement range compared to a CW radar, such as an FMCW radar system, with lower power consumption. A CW radar system delivers continuous updating of target information with higher measurement resolution than a pulsed radar system, …
Block EMI/RFI with Shields and Filters - Microwaves & RF
WEBAug 30, 2018 · Noise can start from inside or outside an RF/microwave circuit or system, but it’s controllable when adding filters and shields that target electromagnetic interference (EMI) and radio-frequency interference (RFI). Both types of components provide reasonable noise suppression and, with proper planning, add little to the size and cost to a design.
Basics of Modulation and Demodulation - Microwaves & RF
WEBJan 30, 2017 · The three fundamental types of digital modulation—amplitude-shift-keying (ASK), frequency-shift-keying (FSK), and phase-shift-keying (PSK) modulation—use changes in amplitude, frequency, and phase to represent digital bits “0” and “1.”. In ASK, the signal amplitude is varied as a function of the information to be transmitted, and ...
What’s the Difference Between Microstrip and Stripline?
WEBAug 22, 2016 · Stripline’s thinner conductors require tighter manufacturing tolerances than microstrip conductors, as well as tighter tolerances in a circuit material’s Dk values. Because of the second ground plane, the width of a 50-Ω (or any given impedance) line in stripline will be narrower than for a conductor with the same impedance in microstrip.
Comparing Narrowband and Wideband Channels - Microwaves & RF
WEBFeb 7, 2018 · In short, wideband channels can carry more information than narrowband channels, but they typically require more power to do so. Narrowband channels typically carry much less information than wideband channels and operate over shorter distances between transmitter and receiver. But because narrowband channels have less noise and typically lower ...
What’s the Difference Between DVB-S2 and DVB-S2X Standards?
WEBAug 3, 2018 · The DVB-S2 standard offers benefits compared to the previous-generation DVB-S standard, while DVB-S2X provides additional technologies and features for the core applications of DVB-S2. Rob Rutkowski. In 1994, the world's first digital satellite TV services were launched in Thailand and South Africa. They utilized the newly developed Digital ...