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 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 ...
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 ...
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 ...
Understanding Wireless Range Calculations | Electronic Design
WEBApr 3, 2013 · Maximum path loss = transmit power – receiver sensitivity + gains – losses – fade margin. V – maximum path loss = 20 – (–100) + 12 – 12 = 120 dB. Once the maximum path loss has been ...
Understanding IEEE 802.11ac VHT Wireless | Electronic Design
WEBJul 16, 2012 · The most recent version of the IEEE’s wireless local-area network (WLAN) standard, 802.11ac, uses the 5-GHz unlicensed band and multiple-input multiple-output (MIMO) to significantly boost data ...
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 ...
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 ...
Impedance Matching Basics: Smith Charts - Electronic Design
WEBJun 29, 2021 · Z L is the load impedance and Z O is the characteristic impedance of the transmission line. If Z L = Z O, then SWR = 1.This is the ideal condition so that all of the generator power gets to the ...