FDMA, TDMA, CDMA, OFDMA, and SDMA: Key Differences and …
WEBJan 22, 2013 · The best example of this is the cable television system. The medium is a single coax cable that is used to broadcast hundreds of channels of video/audio programming to homes.
Understanding Modern Digital Modulation Techniques
WEBJul 14, 2021 · These techniques are used in many modern communication systems, such as cellular phones, Wi-Fi, and Bluetooth. Common digital modulation techniques include amplitude-shift keying (ASK), frequency ...
What’s the Difference Between PNP and NPN? - Electronic Design
WEBOct 28, 2022 · 2. A PNP transistor has a layer of N-doped semiconductor between two layers of P-doped material. 3. An NPN transistor has a layer of P-doped semiconductor between two N-doped layers. The junctions ...
Welcome To Antennas 101 - Electronic Design
WEBJul 29, 2021 · This article is part of the TechXchange: Antenna Design 101. Download this article in .PDF format. This article was written by Louis Frenzel, author of Principles of Electronic Communications ...
Understanding Intermodulation Distortion Measurements
WEBOct 9, 2013 · Understanding Intermodulation Distortion Measurements. Oct. 9, 2013. Intermodulation distortion is an important metric of linearity for a wide range of RF and microwave components. Fundamentally ...
Understanding EMI Filters: The Bare Essentials
WEBJul 20, 2021 · EMI is simply noise interference caused by external electromagnetic waves. EMI can lead to the performance degradation of any electrical equipment design within range by inducing unwanted currents ...
What’s The Difference Between HBM, CDM, And MM Test?
WEBMar 3, 2014 · Usually, the stress level of MM ESD is approximately 10 times lower than that of HBM ESD. Also, the protection voltage level for HBM typically is ~2 kV while for MM it is ~200 V and for CDM it is ...
Back to Basics: Impedance Matching (Part 1) - Electronic Design
WEBOct 24, 2011 · Here, the 36-Ω impedance of a λ/4 vertical ground-plane antenna is matched to a 75-Ω transmitter output impedance with a 52-Ω coax cable. It’s calculated as: ZQ = √(75)(36) = √2700 = 52 ...
What’s The Difference Between Watts And Volt-Amperes?
WEBMay 2, 2012 · W and VA are both units of measurement for power, but that’s where the similarity ends. Watts do work or generate heat, while volt-amperes simply provide you with information you need to size ...
Select the Right Varistors for Overvoltage Circuit Protection
WEBJan 26, 2015 · Step 1: To find the voltage rating of the MOV, allow for 20% headroom to account for voltage swell and power-supply tolerances: 24 V dc × 1.2 = 28.8 V dc. Given that no varistors have a voltage ...