All Questions
Tagged with dielectric microwave
6
questions
2
votes
1
answer
197
views
Why do dielectric waveguides support hybrid modes and metallic waveguides do not?
Can anyone explain to me qualitatively why dielectric waveguides (core and infinite cladding) support hybrid modes (E_z and H_z components in the guided wave), while metallic waveguides cannot?
I am ...
1
vote
1
answer
129
views
The field in a waveguide at exactly the cut-off frequency
Can anyone explain to me qualitatively, what kind of field exists inside a waveguide at EXACTLY the cut-off frequency?
I would be grateful if an explanation was given about waveguides with metalic ...
2
votes
1
answer
564
views
How can S11 component measurement circuit be made on a pcb?
I have a material whose dielectric properties need to be measured. I have done literature review on the physics & impedance based methods to determine the dielectric component.
It requires S11 ...
- 69
0
votes
1
answer
517
views
Why is Kapton film used to hold liquid in waveguide?
I am working on a project similar to the one described in this paper
MEASUREMENT OF COMPLEX PERMITTIVITY OF LIQUIDS.
Here a Kapton film is used to hold liquids, so that they don't spill. Why is this ...
0
votes
1
answer
548
views
How to determine dielectric constant and loss tanget of a PCB board at a specific frequency?
I need to know dielectric constant (relative permittivity) and Tan loss of a FR4 board at 2.45 GHz.
The specification of the manufacturer is as it is below:
Dielectric Constant:
Test method (IPC-TM-...
- 3,305
2
votes
1
answer
1k
views
Building a cheap and stable microwave network analyser or oscillator (2-5GHz)
I am interested in measuring the changing dielectric constant of a liquid as it undergoes a process. My background research of scientific articles shows that the 2-5GHz range provides the best ...
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