Fast EM CAD and optimization of combline filters with circular posts

• Ultra-fast CAD and optimization of all kinds of combline filters. Such as: •Combline filters with stacked posts, •Tuner down screws, •Arbitrarily arranged resonators, •Tapped or disc feed, •Iris coupling, •Top capacitance loading, •Top wall capacitance loaded resonators, etc.

WASP-NET’s pioneering efficient hybrid multi-solver EM CAD engine involves all proven solvers (MM / MoM / FEM / FD / FE-BI / PTD / PO / SBR-PTD). WASP-NET utilizes automatically the most efficient solver for appropriate sub-parts of a structure. This unique hybrid combination of solvers for calculating microwave structures achieves high EM CAD optimization speed while maintaining full-wave EM accuracy as well as full 3D generality and flexibility.
WASP-NET provides full flexibility of 3D solvers combined with high efficiency. Standard building blocks, such as steps and irises etc. are available as catalog elements. WASP-NET is, however, not limited by or restricted to catalog elements. User-defined arbitrary 3D structures or parts thereof are conveniently created in WASP-NET by a user-friendly graphic 3D modeler or by text editors. Geometry parameters are fully parametrized for fast direct EM based optimizations.
Field patterns can be directly optimized including shape profile functions.
3D structures can be exported and, in particular, also be imported using standard formats (e.g. STEP, SAT, BREP, IGES). In this way, imported structures can be de-composed and parametrized for fast optimizations.
WASP-NET’s EM CAD engine needs for the rigorous calculation of combline or coax components merely a couple of seconds on state-of-the-art PCs. Shown speed benchmarks (per frequency point (fr.)) demonstrate WASP-NET’s high efficiency. Highest possible speed is particularly important when optimizing structures.

• Rigorous inclusion of all coupling effects, etc.

• WASP-NET internal cross-check verification by independent different solvers

• Convenient user-friendly design by wizards: M-matrix wizard, combline-wizard

Combline filter with stacked posts, tuner down screws, arbitrarily located resonators

*Benchmarks: Approximate seconds per frequency (abbreviated as “fr” or “fp) on up-to-date PCs

Broadband combline filter, tapped feed, tuner down screws, iris coupled

Eight resonators, folded, iris coupled, tuner down screws, tapped feed

Top capacitance loaded, five resonators, 815 MHz filter

Tapped feed, tuner down screws

Top capacitance loaded

Direct Optimization on EM Level

High Speed + Full-Wave Accuracy

Tapped combline filter, no tuning screws, theory/measurement

Top wall penetrating resonators, compact filter

• Direct optimization to given specifications, no equivalent-circuit interim design steps

Top wall penetrating resonators, ultra-broadband filter

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• Convenient user-friendly Designer Data Base with fully optimized ready to use design examples, which can be scaled to desired frequencies, modified and re-optimized to desired specifications

WASP-NET’s wide application range for accurate, fast EM CAD and optimizations of all kind of passive microwave components / antennas proves - due to WASP-NET’s generality and flexibility - to be practically unlimited.