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Reflection Problem in Time Domain Simulation
Posted 5 juin 2017, 12:40 UTC−4 Version 5.1 0 Replies
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I am simulating a bowtie antenna in time domain simulation in RF module. My operating frequency is 10 GHz. Therefore operating wavelength is 30 mm.
Antenna dimension is around 27 mm (including with a gap 4.5 mm in between). Thickness of the antenna is 0.1 mm. The Air-box surrounding the antenna having dimension (60 mm, 60 mm, 60 mm). I am using SBC for plane wave propagation (along z direction). I have used (SBC,PEC and PMC) for my boundary conditions.
However, in the gap, my E-field seems to be unstable (attached) or seems to have standing pattern wave shape whereas it should be pure sinusoidal shape. I would like to know why the E-field is unstable? Is the problem due to the reflection from the boundary or there is something else i need to take care of?
PS: I posted the question before but didn't get solution to it so posting it again. I really appreciate your help here.
-Rishad
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Hello Rishad Arfin
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