Benefits of Thin-Film Dielectric Chip Capacitors at VHF, UHF, and Higher Frequencies

Benefits of Thin-Film Dielectric Chip Capacitors at VHF, UHF, and Higher Frequencies
Written By: Barry Breen | Leonid Talalaevsky | Scot Tripp

Abstract:
Present and future cellular networks and satellite telecommunications systems demand unique performance characteristics from the SMD capacitors incorporated into their designs. To meet these requirements, single layer surface mount capacitors have been developed on the basis of thin film technologies. The capacitor’s single layer thin film construction provides several major performance advantages relative to multilayer chips. These are much improved Q (low ESR), consistent and repeatable Q/ESR/Ceff/SRF parameters, superior power capability, no secondary resonances up to a frequency of 40GHz and very tight tolerance on capacitance value. By virtue of these characteristics and excellent mechanical features, this thin film capacitor is the ideal surface mount chip for high frequency applications.
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