gundars
Newbie level 4
Hello, I'm modelling inductor ferrite toroid with winding of 11 turns in CST Microwave Studio
![choke1.jpg choke1.jpg](https://www.edaboard.com/data/attachments/26/26011-e809737fd32addd0a3e5b8511c3602b3.jpg)
the problem is that ferrite core is not working ... impedance modeled with core is the same as without core (core deleted from model)
I've measured real inductor and the impedance resonance frequency is at 10MHz but the modeled impedance resonance is at 2GHz (with and without choke)
![choke1.1.jpg choke1.1.jpg](https://www.edaboard.com/data/attachments/26/26015-b4f0a779e4d085f7ff730c2209b0f27b.jpg)
Here are the info on how I've defined the choke:
![choke4.jpg choke4.jpg](https://www.edaboard.com/data/attachments/26/26014-2c9f397c23c7dabe625455e8edeb98fb.jpg)
![choke1.3.jpg choke1.3.jpg](https://www.edaboard.com/data/attachments/26/26017-f0c24885d18b5a55d65db20dba886235.jpg)
![choke1.5.jpg choke1.5.jpg](https://www.edaboard.com/data/attachments/26/26018-04af09d5af18e71b5a63d62fe5adcdfe.jpg)
![choke2.jpg choke2.jpg](https://www.edaboard.com/data/attachments/26/26012-3d6345723ee606c7c81d258e498a2db9.jpg)
![choke1.2.jpg choke1.2.jpg](https://www.edaboard.com/data/attachments/26/26016-0ed32dd2df1e54c0c7c9effe01253571.jpg)
Where is the problem???
where to find any practical info to solve this???
![choke1.jpg choke1.jpg](https://www.edaboard.com/data/attachments/26/26011-e809737fd32addd0a3e5b8511c3602b3.jpg)
the problem is that ferrite core is not working ... impedance modeled with core is the same as without core (core deleted from model)
I've measured real inductor and the impedance resonance frequency is at 10MHz but the modeled impedance resonance is at 2GHz (with and without choke)
![choke1.1.jpg choke1.1.jpg](https://www.edaboard.com/data/attachments/26/26015-b4f0a779e4d085f7ff730c2209b0f27b.jpg)
Here are the info on how I've defined the choke:
![choke4.jpg choke4.jpg](https://www.edaboard.com/data/attachments/26/26014-2c9f397c23c7dabe625455e8edeb98fb.jpg)
![choke1.3.jpg choke1.3.jpg](https://www.edaboard.com/data/attachments/26/26017-f0c24885d18b5a55d65db20dba886235.jpg)
![choke1.5.jpg choke1.5.jpg](https://www.edaboard.com/data/attachments/26/26018-04af09d5af18e71b5a63d62fe5adcdfe.jpg)
![choke2.jpg choke2.jpg](https://www.edaboard.com/data/attachments/26/26012-3d6345723ee606c7c81d258e498a2db9.jpg)
![choke1.2.jpg choke1.2.jpg](https://www.edaboard.com/data/attachments/26/26016-0ed32dd2df1e54c0c7c9effe01253571.jpg)
Where is the problem???
where to find any practical info to solve this???