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Port Phase
Posted Apr 20, 2013, 1:08 p.m. EDT RF & Microwave Engineering Version 4.3a 1 Reply
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Hi all,
I have a question about the port phase in rf module.
I noticed that the software accepts 'i' as an argument for the field "port phase". what does that do? if I'im using multiple ports what is the phase difference between my signals?
I thought it would have been 'pi/2' radians but the results are different
thanks,
Luca
I have a question about the port phase in rf module.
I noticed that the software accepts 'i' as an argument for the field "port phase". what does that do? if I'im using multiple ports what is the phase difference between my signals?
I thought it would have been 'pi/2' radians but the results are different
thanks,
Luca
1 Reply Last Post Apr 20, 2013, 2:06 p.m. EDT
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Posted:
1 decade ago
Hi
COMSOL uses the physor notation by defalt (see the doc) so if you have 3 ports at 120° phse difference you would typically write ou, for a frequency domain sweep solver caset:
phase 1: V0
phase 2: V0*e^(j*2*pi/3)
phase 3: V0*e^(j*4*pi/3)
Hope its clear.
Note: to be sure plot out the voltages (or currents if applicable)
--
Good luck
Ivar
COMSOL uses the physor notation by defalt (see the doc) so if you have 3 ports at 120° phse difference you would typically write ou, for a frequency domain sweep solver caset:
phase 1: V0
phase 2: V0*e^(j*2*pi/3)
phase 3: V0*e^(j*4*pi/3)
Hope its clear.
Note: to be sure plot out the voltages (or currents if applicable)
--
Good luck
Ivar