Improvement of Corona Breakdown Threshold (Peak Power Handling) in Smooth-Profiled Microstrip Filters
Year: 2022
Type: conference-paper
Abstract: In this paper, the PPHCs of two filter design techniques, stepped-impedance (SI) and smooth-profile (SP), are presented for four design prototypes. Smooth-profiled filters feature smooth variations in the characteristic impedance profile, avoiding sharp edges, which accumulate electric fields. The absence of sharp edges in SP reduces the voltage magnification factor, which in turn improves the PPHC of the filter. The phenomenon of electric fields accumulation at the sharp corners of the SI filters is presented and compared with smooth transitions in SP filters. Furthermore, 1D graphs of electric field intensity are presented along the strip contour of the microstrip lines. Finally, SPARK3D results clearly demonstrate that SP filters can handle higher peak powers than their SI counterparts between critical pressure and ambient pressure, for all the studied designs.
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Awards: G1175115578, G121809054, G1515206938, G1855990336, G2001806450, G210041235, G2262748287, G2309174360, G2601397997, G2660406951, G279363373, G300979063, G3246315329, G3345895242, G34346518, G3480869486, G3681454997, G4042783231, G425668148, G430777504, G434337789, Advanced Technologies for future European Satellite Applications, G4937468798, G5080475149, G5195188938, G5421974903, G5805502524, G666847817, G683931746, G7084143925, G7287970782, G751615522, G7735027310, G7984235579, G8005054536, G8214900093, G8512683158, G897484643, G99296377
OpenAlex ID: W4385404635