Waveguide Combiners & Dividers ?
do you knou, how can I do Waveguide Combiners & Dividers?
I mean this: Waveguide Combiners & Dividers
Thank you
That does not sound like a simple combiner. I think they are talking about diplexer filters combining two different frequency signals with no loss onto the same antenna.
If you just use a standard waveguide power combiner, you will have 3 dB of loss, which is too big of a noise figure hit for satellite communications.
And how can I do simple 3dB combiner? :)
A simple waveguide T junction will act as an approximate 3 dB combiner/splitter:
TRG Alpha 640A/599 Waveguide Tee WR28 - eBay (item 290535971074 end time Feb-25-11 10:40:17 PST)
A slightly better combiner would be a "magic tee", which has 4 waveguide ports, and you would put a waveguide load on the unused "isolation" port:
FXR Microlab FXR Model X622A Magic tee x band - eBay (item 350234228228 end time Mar-23-11 07:48:39 PDT)
They do make official 3 dB waveguide couplers--two pcs of waveguide welded together with a series of coupling holes between the two, but they tend to be more expensive:
HP X752A 3DB DIRECTIONAL COUPLER - eBay (item 220741308435 end time Feb-24-11 12:17:13 PST)
https://www.edaboard.com/thread27530.html
or look at
http://search.edaboard.com/waveguide...%20design.html
plasma
Thank, but:
Narrowband Waveguide Coupler - it is good solution, but not for 3dB. I tried this it. For about 20dB it is good, but 3dB...... no
---------- Post added at 09:04 ---------- Previous post was at 08:00 ----------
Do you know something about this solution? Have you some theory?
and have somobody this, please? : IEEE - Design and realisation of dual-band 3 dB power divider based on ...
This looks like S12 well spent:
M.R.C. 3 Way with Splitter Microwave Waveguide - eBay (item 2558057610 end time Mar-04-11 07:18:17 PST)
Buy this, cut it in half with a bandsaw, and learn.