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Copyright: 1996 - 2024
    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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suggestion of website and book - RF Cafe Forums

RF Cafe Forums closed its virtual doors in 2012 mainly due to other social media platforms dominating public commenting venues. RF Cafe Forums began sometime around August of 2003 and was quite well-attended for many years. By 2010, Facebook and Twitter were overwhelmingly dominating online personal interaction, and RF Cafe Forums activity dropped off precipitously. If the folks at phpBB would release a version with integrated sign-in from the major social media platforms, I would resurrect the RF Cafe Forums, but until then it is probably not worth the effort. Regardless, there are still lots of great posts in the archive that ware worth looking at.

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Post subject: suggestion of website and book...
Unread postPosted: Thu May 12, 2005 10:42 am

Dear all,

I am a beginner in designing a RF Bandpass filter. :( As my assignment/project required me to design a RF bandpass filters for the receiver operating from 2110-2170MHz, i hope you all can suggest to me which websites and books suitable for me to learn how to design the required BPF. Hope for the reply soon, thank you. :lol:


Post subject:
Unread postPosted: Thu May 12, 2005 11:11 am

Why would you build one when muRata and Epcos make every kind of SAW BPF under the sun for the UMTS bands?



Post subject: Filter Design
Unread postPosted: Thu May 12, 2005 1:56 pm

What kind of filter do you want to design, LC, microstrip? Here are couple of good books.

A page for LC design is here

Other design programs are here. You find something that helps.


Post subject: Re: Filter Design
Unread postPosted: Fri May 13, 2005 6:03 am

Tom wrote:
What kind of filter do you want to design, LC, microstrip? Here are couple of good books.

A page for LC design is here

Other design programs are here. You find something that helps.

Dear Tom,

The bandpass filter is used in 3G mobile transceiver, is it i am required to design a LC bandpass filter rather than microstrip type?

The book "Radio-Frequency Electronics'' by Jon B. Hagen suitable for me to learn how to design the bandpass filter? or the two books mentioned above are more suitable?

"", what software is suitable to open the .mcd file?

Thanx for your reply, Tom. Thank you.


Post subject: mcd files
Unread postPosted: Mon May 16, 2005 8:33 pm

.mcd files are opened with MathCAD (
Good Luck!


Post subject: Filter Design
Unread postPosted: Wed May 18, 2005 4:08 pm

Book recommendations:
1. Theory and Design of Microwave Filters by Ian Hunter
2. Microstrip filters for RF/Microwave Applications by Hong and Lancaster
3. Microwave Filters, Impedance-matching Networks, and Coupling Structures by Matthei, Young, and Jones
4. Microwave Engineering by Pozar

Posted  11/12/2012
withwave microwave devices - RF Cafe

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