Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
whoever has experience on design microstrip 90-degree hybrid(not use lange coupler) for bandwidth of 4:1 or larger,I just want to know how to realize it?thx.
Yeah odyseus
but with a branch line or a rat race you can achieve a 20% BW. The solution could be find in some articles with that structures modified. But this adds some difficulties in design. I think it is not a simple task.
Mazz
I agree with Mazz's viewpoint.There has some article about how to make a 3-dB microstrip(not stripline) hybrid using modified ratrace
structure with one octove bandwidth but to realize it will have some difficulity.
You can use a double branch line hybrid, there are quite good books on the subject,
the bandwidth of the doubble branch line is greater than the 90 deg branch line hybrid so it should fit your needs, if you can not find litterature mail me and i will find it in a few days.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.