ali_cmi
Junior Member level 2
Hello everyone!
I have to design an 8-pole Round Rod Cavity Interdigital filter. Theoretically, it meets my required specs which are as follows:
-Fc= 1090 MHz
-Bandwidth= 270 MHz
-FBW= 24.77 %
-Insertion Loss= Less than 1 dB from 955-1225 MHz (270 MHz)
-Rejection > 45 dB @ 807.5 MHz and 1372.5 MHz
I took the physical dimensions from https://www.wa4dsy.net/cgi-bin/idbpf (you are welcome ) and the resulting dimensions are attached as a text file.
I am attaching my simulation in HFSS. Please see if I have missed anything or something I did wrong. Correct if you can, please. If any other simulator is preferred by you, kindly take some time to simulate it so that I may be confirmed about the design specs.
Note: Please use HFSS 13.0 to avoid any compatibility issues. If it opens without any problem, ignore this note
Thanks in advance to all who see and comment.
Peace.
View attachment dimensions.txt View attachment reference fig.pdfView attachment IdFilt-1.rar
- - - Updated - - -
Do ask if you need more info.
I have to design an 8-pole Round Rod Cavity Interdigital filter. Theoretically, it meets my required specs which are as follows:
-Fc= 1090 MHz
-Bandwidth= 270 MHz
-FBW= 24.77 %
-Insertion Loss= Less than 1 dB from 955-1225 MHz (270 MHz)
-Rejection > 45 dB @ 807.5 MHz and 1372.5 MHz
I took the physical dimensions from https://www.wa4dsy.net/cgi-bin/idbpf (you are welcome ) and the resulting dimensions are attached as a text file.
I am attaching my simulation in HFSS. Please see if I have missed anything or something I did wrong. Correct if you can, please. If any other simulator is preferred by you, kindly take some time to simulate it so that I may be confirmed about the design specs.
Note: Please use HFSS 13.0 to avoid any compatibility issues. If it opens without any problem, ignore this note
Thanks in advance to all who see and comment.
Peace.
View attachment dimensions.txt View attachment reference fig.pdfView attachment IdFilt-1.rar
- - - Updated - - -
Do ask if you need more info.