Design of SMA 50 Ω Load Using 3D EM Field Simulator: Comparison with Reality

The subject of this paper is to provide a comparison of 3D EM field simulation results of 0603 size SMD resistors with corresponding real data obtained by precise vector measurements. The simulated results were obtained by 3D EM field simulator CST Microwave Studio with time-domain solver. The compa...

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Bibliographic Details
Published in2008 14th Conference on Microwave Techniques pp. 1 - 4
Main Authors Randus, M., Hoffmann, K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2008
Subjects
Circuit simulation
Coaxial components
Conducting materials
Conductors
Connectors
EM-field simulation
Flanges
Microwave circuits
Microwave devices
microwave measurements
microwave modeling
Resistors
Time domain analysis
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Summary:The subject of this paper is to provide a comparison of 3D EM field simulation results of 0603 size SMD resistors with corresponding real data obtained by precise vector measurements. The simulated results were obtained by 3D EM field simulator CST Microwave Studio with time-domain solver. The comparison is shown on a design of an optimized 50Ω load composed of a common SMA flange connector and a set of 0603 size SMD resistors. The resistors are soldered between the inner conductor of the coaxial SMA connector and the flange. Several arrangements of the SMD resistors ranging from single-resistor arrangement to four-resistor pattern as well as different orientation of the resistive layer of the SMD resistors are discussed. Step discontinuity of the inner conductor of a real SMA connector is subsequently also involved in 3D EM field simulation and these results are compared with precise vector measurements.
ISBN:9781424421374
1424421373
DOI:10.1109/COMITE.2008.4569951