Thank you for visiting RF Cafe! Electronics World Cover,TOC,and list of posted Popular Electronics articles QST Radio & TV News Radio-Craft Radio-Electronics Short Wave Craft Wireless World About RF Cafe RF Cafe Homepage RF Cafe in Morse Code Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs Twitter LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes AN/MPN-14 Radar 5CCG Notable Quotes App Notes Calculators Education Magazines Software,T-Shirts,Coffee Mugs Articles - submitted by RF Cafe visitors Simulators Technical Writings RF Cafe Archives Test Notes Wireless System Designer RF Stencils for Visio Shapes for Word Search RF Cafe Sitemap Advertising Facebook RF Cafe Forums RF Cafe Homepage Thank you for visiting RF Cafe!

Coaxial Line Transformer - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


fxhfzy
Post subject: coaxial line transformer Posted: Sat Jul 04, 2009 3:27 am

Captain

Joined: Fri Jun 26, 2009 6:22 am
Posts: 13
I am designing a 200W, IMD3< -40dBc amplifier for 30-90MHz application, I am going to using freescale's MRF6VP2600HR6.The following is test circuit:

I want to ask three quentions:
1.There are two baluns(T1 and T2) , they are coaxial line transformers, is there anyone known the parameters of these baluns(length and Zo)? (Baluns are made by Comm Concept, and I have email Comm Concept company, but they didn’t reply me)
2.Since the Comm Concept company didn’t reply me, is there any other products I can use to substituted for T1 and T2?
3.Maybe I have to make it myself, can you give me some reference on how to make a balun like these?


Top

nubbage
Post subject: Re: coaxial line transformerPosted: Mon Jul 06, 2009 3:33 am

General


Joined: Fri Feb 17, 2006 12:07 pm
Posts: 218
Location: London UK
Hi
You will find info on balun requirements in some Motorola Application Notes. Siliconix also had App Notes once in a while that were a great help in understanding how to design input/output matching sections for bipolars and FETs.

_________________
At bottom, life is all about
Sucking in and blowing out.







Posted  11/12/2012

RF Cafe Software

   Wireless System Designer - RF Cafe
Wireless System Designer

RF & EE Symbols Word
RF Stencils for Visio
Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel

About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2022
Webmaster:
Kirt Blattenberger,
 BSEE - KB3UON

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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:
 AirplanesAndRockets.com

Try Using SEARCH
to Find What You Need. 
There are 1,000s of Pages Indexed on RF Cafe !

height-line