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Balun operation - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: Balun operation
Posted: Thu Mar 23, 2006 5:54 am 
 
Lieutenant

Joined: Wed Mar 22, 2006 7:00 am
Posts: 3
I'm trying to understand how Balun works...

I know it converts a unbalanced signal to 2 balanced signal...

Also, I wondering if a Balun's operating frequency is from 800MHz to 1GHz... Will there be attenuation outside the operating frequency?


 
   
 
 Post subject: Baluns
Posted: Mon Mar 27, 2006 9:18 pm 
 
General
User avatar

Joined: Wed Feb 22, 2006 3:51 pm
Posts: 121
Hi!

First, a gentle reminder - this thread is "Anecdotes & Gripes" - you might do better posting this on the "Circuits" or "Antennas" threads...

Second, a balun converts a signal from unbalanced (2 wires, one "ground", the other "signal") to balanced (AGAIN, 2 wires - not 2 signals, as a general rule), usually not referenced to "ground". (Ground is often no more than a convenient fiction at UHF and microwave frequencies, anyway (Grin!)

Baluns are implemented in a variety of technologies, some more frequency-sensitive than others. So you can find both narrow-band and wide-band balun designs. (For the latter, see Jerry Sevick's book "Transmission Line Transformers).

Good Luck!
Fred


 
   
 
 Post subject:
Posted: Thu Mar 30, 2006 3:25 am 
 
Lieutenant

Joined: Wed Mar 22, 2006 7:00 am
Posts: 3
Oopppsss... (Blush...)


 
   
 
 Post subject:
Posted: Thu Mar 30, 2006 3:26 am 
 
Lieutenant

Joined: Wed Mar 22, 2006 7:00 am
Posts: 3
And Thanks Fred...




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