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What type of balun can we design for 400-1000MHz LPDA antenna?

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naveen89

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can anyone tell what type of balune we can design for the LPDA antenna operating in the range of 400MHZ-1000MHZ .
 

balun design

Hi,
sorry, I need to do balune too. I have this pdf:
**broken link removed**

Have some another source, please?

I would like to do balune on microstrip.
 

balun design

This balun ( in this bandwidth 400MHz-1GHz) should be realized by using ferrite cores.Because the bandwidth is very large and any other structures can not provide Amplitude and Phase balance simultaneously.
Some special MS lines could be realized in form "Cascaded Multistage" but they are really lossy.
 

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