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Uniform lumped port should be placed between two conductive boundaries. - Feature: Type: Lumped Port Tag: lport1 Operation: LumpedPort (lport1)

Posted Nov 6, 2017, 8:00 a.m. EST Electromagnetics, Low-Frequency Electromagnetics, RF & Microwave Engineering Version 5.2 2 Replies

Sakaria Omar Ahmed
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Hello Comsol

I'm trying to find the resonance frequency of spiral multiturn coil. Im getting an error in the lumped port.

Uniform lumped port should be placed between two conductive boundaries. - Feature: Type: Lumped Port Tag: lport1 Operation: LumpedPort (lport1)

I dont know why i getting this error since the lumped port is placed between two conductive boundaries..

I have attactehed the 3D simulation.

Br Sakaria Omar Ahmed

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2 Replies Last Post Nov 7, 2017, 10:21 a.m. EST
Nirmal Paudel Tribhuvan University/Electrical Engineering
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Posted: 7 years ago Nov 6, 2017, 8:59 a.m. EST

Hi Sakaria,

After reviewing your model file, it apprears that it is more appropriate to use the "User Defined" Lumped Port as done in this Dipole Antenna Example. Please take a look at this example carefully and apply the same to your model. https://www.comsol.com/model/dipole-antenna-8715

Goood Luck.

Best Regards, Nirmal Paudel

Hi Sakaria, After reviewing your model file, it apprears that it is more appropriate to use the "User Defined" Lumped Port as done in this Dipole Antenna Example. Please take a look at this example carefully and apply the same to your model. https://www.comsol.com/model/dipole-antenna-8715 Goood Luck. Best Regards, Nirmal Paudel
Edgar J. Kaiser Certified Consultant
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Posted: 7 years ago Nov 7, 2017, 10:21 a.m. EST

Sakaria,

one of the boundaries close to the port boundaries is not properly set to PEC. I didn't check anything else. Well the port seems to be a little long for 1 GHz.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Sakaria, one of the boundaries close to the port boundaries is not properly set to PEC. I didn't check anything else. Well the port seems to be a little long for 1 GHz. Cheers Edgar

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