New in MICROSTRIP COUPLERS - RF Cafe Forums

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Corvus
Post subject: New in MICROSTRIP COUPLERS Posted: Wed Sep 02, 2009 11:43 am

Captain

Joined: Mon Jul 18, 2005 12:55 pm
Posts: 8
Hi there.

I would like to design a MICROSTRIP DIRECTIONAL COUPLER of 20dB for UHF band. I am quite new in this kind of couplers. How to begin the design with ADS and its MOMENTUM tool?Which are the steps?

thanks.

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IR
Post subject: Re: New in MICROSTRIP COUPLERSPosted: Fri Sep 04, 2009 11:26 am

Site Admin

Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
Hello Corvus,

I am also new to this topic. From what I remember, in ADS there are models of coupled lines and also of couplers under the Microstrip line library, which you can utilize as a start point for your design.

First, a linear simulation to estimate the dimensions of the microstrip lines based on the required coupling, reflections and isolation requirements.

The next step is to do EM simulations.

In addition, I have found in Google this article, which shed some light on the design steps:

http://www.engr.uky.edu/~gedney/courses ... hybrid.pdf

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Best regards,

- IR

Posted 11/12/2012