The effect of self-heating on the performance of a tunable filter with embedded windings in a ferrite LTCC package

Handle URI:
http://hdl.handle.net/10754/575730
Title:
The effect of self-heating on the performance of a tunable filter with embedded windings in a ferrite LTCC package
Authors:
Arabi, Eyad A. ( 0000-0003-2855-2061 ) ; Shamim, Atif ( 0000-0002-4207-4740 )
Abstract:
Traditionally, ferrite-based tunable filters are biased by large and bulky electromagnets, which require high currents to overcome the dissipated fields at the air interface between the electromagnet and the ferrite substrate. This problem has been solved by implementing the windings inside the package using ferrite low-temperature co-fired ceramic (LTCC). However, these embedded windings, which are densely packed, generate heat that affects the characteristics of the ferrite material. In this paper, we investigated the heat effects due to embedded windings in ferrite LTCC filters. We also incorporated the heating effects into an electromagnetic simulation model and achieved a good agreement between the simulations and the measurements. We found that increasing the temperature of the filter module from 0 °C to 190 °C by external heating causes the center frequency of the filter to shift by about 1 GHz. Alternatively, when a dc current is passed through the bias windings, heat is generated in the windings to a temperature of 250 °C measured at 260 mA of current. This heat causes the tunability of the filter to increase by more than 2%. © 2015 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Integrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Components, Packaging and Manufacturing Technology
Issue Date:
Mar-2015
DOI:
10.1109/TCPMT.2015.2393551
Type:
Article
ISSN:
21563950
Appears in Collections:
Articles; Integrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Lab; Integrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Lab; Electrical Engineering Program; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorArabi, Eyad A.en
dc.contributor.authorShamim, Atifen
dc.date.accessioned2015-08-24T08:36:45Zen
dc.date.available2015-08-24T08:36:45Zen
dc.date.issued2015-03en
dc.identifier.issn21563950en
dc.identifier.doi10.1109/TCPMT.2015.2393551en
dc.identifier.urihttp://hdl.handle.net/10754/575730en
dc.description.abstractTraditionally, ferrite-based tunable filters are biased by large and bulky electromagnets, which require high currents to overcome the dissipated fields at the air interface between the electromagnet and the ferrite substrate. This problem has been solved by implementing the windings inside the package using ferrite low-temperature co-fired ceramic (LTCC). However, these embedded windings, which are densely packed, generate heat that affects the characteristics of the ferrite material. In this paper, we investigated the heat effects due to embedded windings in ferrite LTCC filters. We also incorporated the heating effects into an electromagnetic simulation model and achieved a good agreement between the simulations and the measurements. We found that increasing the temperature of the filter module from 0 °C to 190 °C by external heating causes the center frequency of the filter to shift by about 1 GHz. Alternatively, when a dc current is passed through the bias windings, heat is generated in the windings to a temperature of 250 °C measured at 260 mA of current. This heat causes the tunability of the filter to increase by more than 2%. © 2015 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectFerrite low-temperature co-fired ceramic (LTCC)en
dc.subjecttemperature effectsen
dc.subjecttunable bandpass filteren
dc.titleThe effect of self-heating on the performance of a tunable filter with embedded windings in a ferrite LTCC packageen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentIntegrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Laben
dc.identifier.journalIEEE Transactions on Components, Packaging and Manufacturing Technologyen
kaust.authorArabi, Eyad A.en
kaust.authorShamim, Atifen
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