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Topic Title: Query regarding Microstrip LANGE coupler design
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Created On: 01 March 2012 04:59 PM
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 01 March 2012 04:59 PM
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Joined: 01 March 2012

i want to design a 3dB coupler (to be specific LANGE coupler) in my thesis work using microstrip, and hence want to compute w/h and s/h for the same. The laminate which i m using has dielectric constant = 2.94. The first step for the above design is to compute even and odd mode impedance, and from these impedance we need t compute w/h and s/h (width and spacing of microstrip lines). I have searched extensively but most of the work is done for material with dielectric constant = 10 (graphs are available for this value). Please help me with this if you can. please if possible suggest me sm1 who can help.

Thanks and Regards,
Sandeep Pariyani

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