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Momentum (ADS2020) port shape and feed type behaviour

Question asked by HEIJNING on May 14, 2020
Latest reply on May 15, 2020 by volker_muehlhaus

By accident I noticed that the port shape (dot, rectangle, circle, edge) has an impact on the Momentum (ADS2020) simulation result when the feed type is defined as TML. For a TML feed I would not expect that the shape of the port is taken into account (this is only relevant for a direct feed type).

Is the port shape definition taking precedence over the feed type definition?

The default shape is "dot". When this shape is changed the "edge" and the feed type is not changed (always TML), the resulting S-parameters are very different.

Port shape definition

Feed type definition

best regards,

Marc

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