branch-line couplers

hi..can anyone provide me with info on microwave branch-line couplers. tried searcing countless sites but to no avail... appreciate it..
thanks

Hi,

what you mean how to design it?

David

Hi,

it is a very basic and simple circuit, you can find underlying theory in almost every text book or browse the internet, e.g.:

http://www.odyseus.nildram.co.uk/RFM...les/Hybrid.pdf

flyhigh

This may help

http://www.odyseus.nildram.co.uk/RFM...les/Hybrid.pdf

Hi,

Hybrid coupler design is a very simple one. You can search net for various documents and papers pertaining to it.

Go through this page, it should help you understand basics.
http://www.microwaves101.com/encyclo...e_couplers.cfm

Microwaves101.com is a good site for reference.

Good luck!

Vaibz