A Novel Method of Conductivity Measurements for Carbon-Fiber Monopole Antenna

Galehdar, A, Callus, P and Ghorbani, K 2011, 'A Novel Method of Conductivity Measurements for Carbon-Fiber Monopole Antenna', IEEE Transaction on Antenna and Propagation, vol. 59, no. 6, pp. 2120-2126.


Document type: Journal Article
Collection: Journal Articles

Title A Novel Method of Conductivity Measurements for Carbon-Fiber Monopole Antenna
Author(s) Galehdar, A
Callus, P
Ghorbani, K
Year 2011
Journal name IEEE Transaction on Antenna and Propagation
Volume number 59
Issue number 6
Start page 2120
End page 2126
Total pages 7
Publisher I E E E
Abstract The relation between loss resistance and conductivity for monopole antennas over a ground plane is derived. Its accuracy was confirmed by good agreement between it and finite element and method of moments simulations. This relation may be used to calculate conductivity of any material that radiates. A Wheeler Cap system was setup. System losses were determined by equating the loss resistance of a 70 mm long x 1.17 mm diameter copper monopole at resonance with that predicted using the published conductivity for this material. The loss resistance of a 70 mm long x 2 mm wide x 2 mm thick monopole antenna manufactured from an aerospace grade carbon fibre reinforced plastic (CFRP) laminate, IM7/977-3 prepreg tape with a [0 45 90 - 45](2 s) stacking sequence, was measured then corrected for system loss. The conductivity of the CFRP laminate was calculated to be 51,000 S/m at 980 MHz.
Subject Antennas and Propagation
Composite and Hybrid Materials
Keyword(s) Advanced composite materials (ACM)
carbon fibre reinforced plastic (CFRP)
conductivity
loss resistance
monopole antenna
DOI - identifier 10.1109/TAP.2011.2143676
Copyright notice © 2011 IEEE
ISSN 0018-926X
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
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