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Hi all,
Is it possible in CST to use more than only 1 plane wave to illuminate objects.
I have a square dielectric and I want to illuminate from 2 or 3 sides with plane waves to see how the E-fields add up.
When I use 1 plane wave, CST only gives me the option of "Edit plane wave"
thanks ya all.
servo motors argentina
Thank you very much for your reply.
Do you know manufacturers that provides solutions for a motor with the specifications that I have given here, along with motor controller/driver solution which is (hopefully) connected to the 230Vac grid for power and has come...
ac servo
Hi all,
I am designing a positioning system using a servo motor to move my load.
The motor is to drive approximately I_load = 0.07 kg*m^2 load from a stop position, only 1 degree increment in 3.5ms.
This will be a stepping system in that sense it will step 1 degree every 3.5 ms.
The...
time acceleration vs torque
Hi jorgito (and everyone else reading this),
Thank you very much for using your time in helping little old me :)
As I understand from you, from a (starting) torque perspective both the AC and DC servo motors would be suitable. So other factors such as noise...
dc motor vs ac high starting torque
Hi jorgito,
These torque numbers i have written have gearing considered. I have found optimum gearing ratio between 6 and 15, depending on the moment of inertia of the motor rotor.
So additional gearing is not possible. The actual torque required to move...
ac servo motor
Hi all,
I am designing a positioning system using a servo motor to move my load.
The motor is to drive approximately I_load = 0.07 kg*m^2 load from a stop position, only 1 degree increment in 3.5ms.
This will be a stepping system in that sense it will step 1 degree every 3.5...
Hi,
I am trying to design a PLL Synthesizer using Analog's ADF4157 PLL chip.
As a reference I am going to use a TCXO, but Im not sure about the difference between Clipped Sine Oscillator and HCMOS Oscillator.
In the datasheet they state the input can be driven from a TTL or CMOS crystal, or...
As far as I could read from the question the antenna impedance is 115 ohm, not 115 +jX ohms, hence a real impedance.
So assuming this is a purely real impedance, use of a quarter wave transformer is very easy. For wider BW you can use multiple sections of a quarter wave transformers, but this...
I would suggest making it with a Temperature Compensated Crystal Osillator (TCXO), PLL IC from f.x. Analog Devices and a VCO that fits your frequency range. By that make a PLL Frequency Synthesizer which should be rather stable.
Also this requires a Loop Filter (LPF).
Hope that helps
Just read as much as you can, books, articles and webpages.
Make yourself a goal. Try to design whole RF part of an transceiver, with PA, LNA, antenna, oscillator and the whole thing.
Simulate your results and try to get wiser.
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