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coupled_line_microwave_filter_simulation
Posted 2010年11月16日 GMT-5 11:46 1 Reply
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Hi all,
I am trying to simulate a coupled-line microstrip filter. I designed this filter using ADS and simulated
with ADS momentum and ADS FEM, both gave me reasonable response. The center frequency is around
34.0GHz. But I cannot get a right answer when I put it in COMSOL. The S12 has a peak at 31GHz only -40dB. Attached is the model file. I also tried a low frequency filter at 1GHz, and the simulation works. But the 34GHz filter doesn't work. I refined the mesh around the ports and transmission lines, but this didn't improve the result. Any suggestion?
Thanks!
Kan
I am trying to simulate a coupled-line microstrip filter. I designed this filter using ADS and simulated
with ADS momentum and ADS FEM, both gave me reasonable response. The center frequency is around
34.0GHz. But I cannot get a right answer when I put it in COMSOL. The S12 has a peak at 31GHz only -40dB. Attached is the model file. I also tried a low frequency filter at 1GHz, and the simulation works. But the 34GHz filter doesn't work. I refined the mesh around the ports and transmission lines, but this didn't improve the result. Any suggestion?
Thanks!
Kan
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1 Reply Last Post 2010年11月17日 GMT-5 12:00
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Posted:
1 decade ago
Anybody has an idea? Thanks!