Anyone here worked on or know of near field antenna measurements?

AI Thread Summary
The discussion centers on seeking assistance with near field antenna measurements, particularly regarding the sampling procedure for creating a plane wave spectrum in one-dimensional planar measurements. The original poster is using Mathcad and is unsure about the number of samples needed for accurate probe field calculations. A participant mentions their experience with near field radio links but requests more details about the setup and specific issues faced. The conversation highlights the need for clarity on sampling techniques in near field measurements. Further insights are expected if more information is provided.
farazk86
Messages
3
Reaction score
0
Hi,

Im looking for some one who has worked on or knows the concept of near field antenna measurements.

If there is anyone here I would really appreciate that you reply and answer some of my questions.

I am having trouble with the sampling part for creating my plane wave spectrum.. I am doing my measurements over a 1 dimension planar near field measurement and will be using mathcad.

If anyone knows the topic please reply and ill post more details about my topic.

Thank you
 
Engineering news on Phys.org
no one?? :(

i just wanted to clarify the sampling procedure..

that is if i am going to calculate over only 1 dimension in planar near field measurement.. then how many samples should i take on the probe field?
 
I don't think I'm the person you're looking for, however I did work with a near field radio link in the 200 - 400 kHz range. Can you describe your setup and the problem you're having in more detail?
 

Thread 'Why does the amperage go real high if there is a low voltage short?'

I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...
View full post »

Thread 'How might electronics be different if AC voltage was 72V at 45 Hz?'

Hey guys. I have a question related to electricity and alternating current. Say an alien fictional society developed electricity, and settled on a standard like 73V AC current at 46 Hz. How would appliances be designed, and what impact would the lower frequency and voltage have on transformers, wiring, TVs, computers, LEDs, motors, and heating, assuming the laws of physics and technology are the same as on Earth?
View full post »
Thread 'Electromagnet magnetic field issue'

Thread 'Electromagnet magnetic field issue'

Hi Guys We are a bunch a mechanical engineers trying to build a simple electromagnet. Our design is based on a very similar magnet. However, our version is about 10 times less magnetic and we are wondering why. Our coil has exactly same length, same number of layers and turns. What is possibly wrong? PIN and bracket are made of iron and are in electrical contact, exactly like the reference design. Any help will be appreciated. Thanks. edit: even same wire diameter and coil was wounded by a...
View full post »

Similar threads

Weird near-field phenomenon I get in my EM simulation
Replies
11
Views
518
Does an Rx antenna's Zout differ using near- & far- field "beacon" Tx?
Replies
10
Views
1K
DIY wideband antenna VSWR - beginner
Replies
8
Views
2K
How RF Antennas Work: A Beginner's Guide
Replies
8
Views
2K
Anyone amateur radio ops here have experience with end fed HF antennas?
Replies
10
Views
3K
I Estimation of E-field strength at a distance from dipole antenna
Replies
4
Views
2K
Trying to buy a quality EM meter for low frequency measurements
Replies
4
Views
2K
Why Might a Halbach Array Simulation Differ from Actual Measurements?
Replies
8
Views
3K
Near field from cell phone antennas?
Replies
2
Views
2K
How is Windshield Glass Used As Antenna For Transponder?
Replies
1
Views
7K

Hot Threads

Recent Insights

Back
Top