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Substrate integrated waveguides for microwave and millimetre-wave circuits
8-Apr-2010 11:59 11:59
Age: 11 yrs


PR. PAUL YOUG



Substrate integrated waveguides for microwave and millimetre-wave circuits


Séminaire Paul Young du 8/04/10

"Substrate integrated waveguides for microwave and millimetre-wave circuits"

 

Rectangular waveguides (RWG) have been used for many years and their advantages

over other types of guiding structures are well known. However, due to the

three-dimensional nature of RWGs, they can be difficult to manufacture

accurately and integrate with planar circuitry at millimetre-wave frequencies

and are excessively large at low microwave frequencies. We have looked at

several novel techniques relying on conventional microwave integrated circuit

(MIC) fabrication to realise RWGs. These have included multilayer laminates,

low temperature co-fired ceramic (LTCC), photoimageable thick-films and

conventional PCB manufacture. All of these techniques have the advantage of

easy integration with planar circuitry and comparatively simple and cheap

manufacture based on existing microwave fabrication techniques. These are set

to revolutionise the way microwave circuits are designed allowing hybrid

waveguide/planar systems to be formed from a single substrate.

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