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Rapid design optimisation of microwave structures through automated tuning space mapping

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3 Author(s)
Koziel, S. ; Eng. Optimisation & Modeling Center, Reykjavik Univ., Reykjavík, Iceland ; Cheng, Q.S. ; Bandler, J.W.

Tuning space mapping (TSM) is one of the latest developments in space mapping technology. TSM algorithms offer a remarkably fast design optimisation with satisfactory results obtained after one or two iterations, which amounts to just a few electromagnetic simulations of the optimised microwave structure. The TSM algorithms (as exemplified by `Type-1` tuning) could be simply implemented manually. The approach may require interaction between various electromagnetic-based and circuit models, as well as handling different sets of design variables and control parameters. As a result, certain TSM algorithms (especially so-called `Type-0` tuning) may be tedious, thus, error-prone to implement. Here, we present a fully automated tuning space mapping implementation that exploits the functionality of our user-friendly space mapping software, the SMF system. The operation and performance of our new implementation is illustrated through the design of a box-section Chebyshev bandpass filter and a capacitively coupled dual-behaviour resonator filter.

Published in:

Microwaves, Antennas & Propagation, IET  (Volume:4 ,  Issue: 11 )