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I'm going to design a rectifier for low power input at 2.45 GHz.
How low is the limit for input level? The lower, the better.
Now I'm referring to the attached pdf. If I use many diodes, can I get high output voltage?
My desired voltage is around 0.5 V.
If I can get that voltage from the...
HIGH GAIN ARRAY ANTENNA
Could you give me documents about designing antennas of this type in PDF I attached ?
Especially I want to know how to feed between patches.
gaussian pulse spectrum
I'm trying to calculate Modulated Gaussian Pulse Spectrum.
What is the fourier transform of the modulated gaussian pulse like this?
In this expression, f0=6GHz τ=80ps.
Thanks.
Thank you for your reply.
I can convert frequency domain data S21 to time domain data with inverse Fourier transform.
But I don't know what I should do after that.
Can Ui(t) be expressed as a function with variable t?
I think that function is necessary for integral zero to τ.
Thanks.
I'm trying Microwave Imaging for small objects like a tumor.
I refer to the following article.
BREAST CANCER TUMOUR DETECTION USING MICROWAVE RADAR
TECHNIQUES
https://bura.brunel.ac.uk/bitstream/2438/2663/1/C15_URSI.pdf
I don't understand how to get function Ui(t) in Equation (1) from this...
design rectangular waveguide
Hi, shlomo22. Thank you for your reply.
Surely Teflon doesn't extend into the waveguide cylinder on Figure 13.
But I try Full height like Figure 7. It seems to be a measurement result.
Full height seems to improve VSWR compared with Bare. So I apply Full height.
I...
rectangular waveguide to coax transition design
Referring to the following article, I simulate Rectangular Waveguide to Coax Transition Design with HFSS 11.
http://www.w1ghz.org/QEX/Rectangular_Waveguide_to_Coax_Transition_Design.pdf
I expect VSWR from 8 to 12.4 GHz will be under 1.25. But it...
Amplifier for UWB Radar
I'm looking for an amplifier for UWB radar.
Could you recommend high-gain amplifiers covering whole UWB band(3.1 to
10.6 GHz)?
I prefer to economical one. I found Cernex. Anything else?
uwb radar
Can HFSS deal with ultra-wideband(UWB) Radar Simulation?
In the experiment a pulse generator is connected to TX antenna like attached image.
Can pulse generating be realized with HFSS only? Or need other software?
Salisbury Screen is a kind of absorber.
h**p://www.feko.info/knowledge-base/application-notes/folder070110-1511/
This absorber uses a resistive sheet having a resistivity close to that of free space (377 Ohm).
Can I get such a sheet? Could you tell me manufacturer's websites?
hfss simulation metamaterial
I simulate FIG.2 in the paper. I hope the same results as FIG.3.
Magnitude of S is good. But Phase of S is different.
Did you get S-parameters correctly? Could you tell me the detail?
I attach my file with HFSS V11.
volume mesh generation failed hfss
Probably there are meshing problems.
You may remove these problems using Model Analysis.
Select 3D Modeler> Model Analysis
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