Title :
Rapid EM-Driven Design of Compact RF Circuits By Means of Nested Space Mapping
Author :
Koziel, Slawomir ; Bekasiewicz, Adrian ; Kurgan, Piotr
Author_Institution :
Fac. of Electron., Telecommun. & Inf., Gdansk Univ. of Technol., Gdansk, Poland
Abstract :
A methodology for rapid design of RF circuits constituted by compact microstrip resonant-cells (CMRCs) is presented. Our approach exploits nested space mapping (NSM) technology, where the inner SM layer is used to correct the equivalent circuit model at the CMRC level, whereas the outer layer enhances the coarse model of the entire structure under design. We demonstrate that NSM dramatically improves performance of surrogate-based optimization of composite CMRC-based structures. It is validated using four examples of UWB microstrip matching transformers (MTs) and compared to previous attempts to surrogate-based compact structure design.
Keywords :
equivalent circuits; microstrip resonators; optimisation; radiofrequency integrated circuits; NSM technology; RF circuits; UWB microstrip matching transformers; coarse model; compact microstrip resonant-cells; composite CMRC-based structures; equivalent circuit model; inner SM layer; nested space mapping technology; surrogate-based optimization; Computational modeling; Geometry; Integrated circuit modeling; Optimization; Parameter extraction; Radio frequency; Vectors; Compact microstrip resonant cells (CMRCs); matching transformer; space mapping; surrogate-based optimization;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2014.2313588