Performance and analysis of an aluminium nitride isolation resistor

Author

Karamitsos, N. ; Gibson, A.A.P.

Author_Institution

Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK

Volume

142

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

282

Lastpage

284

Abstract

An essential requirement of optimised microwave resistor operation is good thermal loss. In this application the thermal conductivity of the ceramic substrate base is as important as its complex permittivity. A good thermally conducting aluminium nitride resistor has been constructed for beamformer isolation purposes in corporate feed networks. Its microwave performance has been measured and found to be in good agreement with that of a conventional alumina package. An efficient and flexible quasi-static finite-element solver is also developed to model this class of structure. Numerical calculations accurately predict impedance measurements for both types of resistor. Stripline power divider measurements are included for completeness

Keywords

aluminium compounds; electric impedance measurement; finite element analysis; microwave measurement; permittivity measurement; power dividers; resistors; strip line components; thermal conductivity; AlN; beamformer isolation; ceramic substrate base; complex permittivity; corporate feed networks; impedance measurements; numerical calculations; optimised microwave resistor operation; quasi-static finite-element solver; stripline power divider measurements; thermal conductivity; thermal loss;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:19951893

Filename

401302