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how to feed a cylindrical microstrip

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llchuan

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hi
may i know how to feed a microstrip in a cylinder?Should I use waveport or lumped port?and also what is the shape of the port since the microstrip is on a cylindrical substrate?
 

mwmmboy

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Hi, but the cylinder is a waveguide or what. The cylinder is paraller or orthogonal to the microstrip substrate?

Bye
 

llchuan

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hi
the cylinder is a hollow cylinder with fr4 substrate and outer layer ground. the microstrip is in the inner side of the cylinder, running parallel along the cylinder.
 

mwmmboy

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I think that a wave port is better for this structure.

Bye.
 

llchuan

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how about the shape of the waveport?
can I use a rectangle waveport in this case?
 

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