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nicita
Joined: 10 Mar 2008
Posts: 15
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 05 May 2008 13:44 RF filter design |
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Hi,
can someone help me with some helpful information about rf filter design? the frequency that I need to use is 60 GHz. I know that the are some good books, as Mathei - Microwave filters,Impedance matching and coupling structures, but I need something that come directly from people that had experiences in this topic!!
I would like to know some practical advantages and drawbacks related to the design of such filters!!
Thanks a lot!!
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rosaeidi
Joined: 19 Dec 2006
Posts: 96
Helped: 5
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| 05 May 2008 13:57 RF filter design |
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Hi
I have designed some rf filters with maximum frequency of 2.5 GHz. What is the type of your desired filter?
What is your technology?
Last edited by rosaeidi on 05 May 2008 14:15; edited 1 time in total |
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Amrsfmt
Joined: 27 Jan 2007
Posts: 14
Helped: 4
Location: Egypt
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| 05 May 2008 14:06 RF filter design |
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Hi,
you mean active filter design or you mean microstrip filter design.
please clarify.
regards
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nicita
Joined: 10 Mar 2008
Posts: 15
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| 05 May 2008 14:10 RF filter design |
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Hi Amrsfmt,
You're right I wasn't clear, I mean microstrip filter.
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Amrsfmt
Joined: 27 Jan 2007
Posts: 14
Helped: 4
Location: Egypt
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| 05 May 2008 17:00 RF filter design |
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The best I can tell you can check the Pozar's book.
"Microwave Engineering".
You can use HFSS for analysis or go directly to Ansoft Designer for design.
You can check http://www.emtalk.com/tutorials.htm
Another thing you need to do search for substrate materials. Since you are targeting a very high frequency you might need to get a low loss substrate.
I'm also interested in the same topic so if you can share your knowledge this would be great.
regards
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spminn
Joined: 18 Apr 2008
Posts: 21
Helped: 4
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| 06 May 2008 4:54 Re: RF filter design |
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| AT 60 GHz, you cannot use standard FR-4 (too lossy). Also, microstrip is not the way to go at such high frequencies. You should consider coplanar waveguide structures. Most on-chip T-lines at 60GHz are coplanar stripline structures. A good reference for on-chip transmission lines is: "On-chip interconnect for mm-wave applications using an all-copper technology and wavelength reduction" by John Long (ISSCC paper)
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tshah
Joined: 31 Dec 2007
Posts: 58
Helped: 4
Location: USA
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| 06 May 2008 5:14 Re: RF filter design |
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Hi nicita,
You can refer to this book. A very good reference:
Filters for rf/microwave applications : M. J. lancaster
Also, I would like to request if someone can post this paper. "On-chip interconnect for mm-wave applications using an all-copper technology and wavelength reduction" by John Long (ISSCC paper) "
Thanks
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Amrsfmt
Joined: 27 Jan 2007
Posts: 14
Helped: 4
Location: Egypt
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| 06 May 2008 8:37 Re: RF filter design |
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Nice Paper.
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james cook
Joined: 04 Sep 2005
Posts: 96
Helped: 5
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| 06 May 2008 12:32 RF filter design |
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| It should be the book "Microstrip Filters for RF/Microwave Applications.' which you can download from internet for freee. Very good book
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DDavid
Joined: 06 Apr 2006
Posts: 170
Helped: 21
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| 06 May 2008 15:12 Re: RF filter design |
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Hi
attach below a few papers that are talk about filter design (rf & microwave)
David
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kpcheah
Joined: 07 May 2008
Posts: 3
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| 11 May 2008 18:44 Re: RF filter design |
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| i need to design microstript filter also...can anyone help???any good book/article/website???thx a lot
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tshah
Joined: 31 Dec 2007
Posts: 58
Helped: 4
Location: USA
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| 12 May 2008 21:31 Re: RF filter design |
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Hi Ddavid,
Can you give me information about writer of the book which you uploaded?
Also, nicita, if you are designing a filter for 60 GHz frequency, it is not rf filter. Frquencies more than 30 GHz fall in the millimeter range and advantage of such design is that you can devlop a mulchip modules which can have a very compact design. Especially, it is useful in radio engineering field. These kind of designs can simplify overall topology.
Thanks
Added after 1 minutes:
for microstrip filter good book is of
"lancaster" "filters for rf/microwave applications"
Thanks
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mallelauma
Joined: 25 Mar 2008
Posts: 92
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| 13 May 2008 13:06 Re: RF filter design |
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hello kpcheah
u can use the book as
"microstrip filters for rf/microwave applications" by "lancaster"
but for what frequencies u want to design depending on that u have to select the type of filter.
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toney
Joined: 19 May 2008
Posts: 15
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| 19 May 2008 5:58 Re: RF filter design |
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| I also Study filter,but I have not enoughresource.
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james cook
Joined: 04 Sep 2005
Posts: 96
Helped: 5
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| 19 May 2008 14:02 RF filter design |
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| At 60 Ghz, you can only use rogers for substrate which is restricted in many countries. whats the application of your filter ? in radar?
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