Table 4 Optimization results for Circuit II.

From: Knowledge-based expedited parameter tuning of microwave passives by means of design requirement management and variable-resolution EM simulations

Algorithm

Operating frequency at the optimized design

Optimization cost#

Cost savings over algorithm of Koziel et al.70*

Conventional TR procedure (cf. "Trust-region-embedded gradient-search" section)

N/A&

N/A&

N/A&

Adaptive performance specifications70

[1.2 2.7] GHz

243

–

Variable-fidelity adaptive performance specifications (this work)

[1.2 2.7] GHz

94

61.3%

  1. $Objective function computed as in (2).
  2. #Cost expresses in equivalent number of high-fidelity EM simulations.
  3. &The algorithm failed to identify a satisfactory design, in particular, align the circuit operating frequency with the target.
  4. *Relative computational savings in percent w.r.t. the algorithm of70.
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