What does the RF waveform of wifi/bluetooth look like?

  • Thread starter Thread starter Benjamin_harsh
  • Start date Start date
  • Tags Tags
    Rf Waveform
AI Thread Summary
The discussion focuses on the appearance of WiFi and Bluetooth RF waveforms, noting that in the time domain, they appear as a blur during packet transmissions, while in the frequency domain, they show multi-lobed frequency bands. The inquiry stems from either a school assignment or general interest in understanding these waveforms. The thread was moved to the Electrical Engineering forum for broader visibility. Participants engage in questions about the use of oscilloscopes and spectrum analyzers for analyzing communication waveforms. Overall, the conversation highlights the complexities of visualizing RF signals in different domains.
Benjamin_harsh
Messages
211
Reaction score
5
Homework Statement:: I tried google search and I give up.
Relevant Equations:: How does output wave of wifi/bluetooth look like?

How does output wave of wifi/bluetooth look like?
 
Engineering news on Phys.org
In what domain? In the time domain it looks like a blur during the packet transmissions. In the frequency domain it looks like multi-lobed frequency bands. Is this for a schoolwork assignment or general interest?

1643046123288.png


1643046150794.png


https://www.researchgate.net/figure/Frequency-spectrum-of-WiFi-channel-allocations_fig2_320339729
 
berkeman said:
or general interest?
Yes.
 
Benjamin_harsh said:
Yes.
In that case, I'll move the thread to the EE forum to get more views.

@Benjamin_harsh -- Does my post above make sense? Have you used an oscilloscope to look at communication waveforms of any kind? Have you used a spectrum analyzer to look at RF communication bands? :smile:
 

Thread '3-terminal device external modeling'

Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
View full post »

Thread 'Question about the voltage between two charged capacitors'

suppose you have two capacitors with a 0.1 Farad value and 12 VDC rating. label these as A and B. label the terminals of each as 1 and 2. you also have a voltmeter with a 40 volt linear range for DC. you also have a 9 volt DC power supply fed by mains. you charge each capacitor to 9 volts with terminal 1 being - (negative) and terminal 2 being + (positive). you connect the voltmeter to terminal A2 and to terminal B1. does it read any voltage? can - of one capacitor discharge + of the...
View full post »
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Similar threads

Mosfet, Mesfet vs Bipolar transistors in RF circuits
Replies
28
Views
5K
How Does a Wifi Receiver Implement RF Systems Without Traditional Components?
Replies
7
Views
3K
Digital phase converters for running 3-phase motors
Replies
27
Views
241
Microwave Oven door attenuation in dB?
Replies
3
Views
2K
A little help understanding 3 phase waveforms and summation
Replies
5
Views
2K
How Can We Efficiently Harvest RF Energy to Charge Batteries?
Replies
19
Views
3K
Man, I hate Bluetooth
Replies
8
Views
1K
Why does Bluetooth suck so bad?
Replies
16
Views
4K
Help with waveform control: frequency, phase and amplitude
Replies
46
Views
5K
Bluetooth malfunctioning in Ubuntu 20.04 laptop
Replies
15
Views
6K

Hot Threads

Recent Insights

Back
Top