Thermoplastic green machining for textured dielectric substrate for broadband miniature antenna

Young-Hag Koh, John W. Halloran, Gullu Kiziltas, Dimitris Psychoudakis, John Volakis

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A textured dielectric substrate for a broadband miniature antenna was fabricated using a thermoplastic green machining. This substrate comprised of three steps with optimized distribution of a dielectric ceramic (Bi-Ba-Nd-Titania; BBNT) and an epoxy. At first, a thermoplastic compound, consisting of BBNT particles and thermoplastic binders, was machined precisely using a mini-computer numeric controlled machine to make a three-dimensional void in the green BBNT body. After appropriate binder removal and sintering, the void in the dense BBNT block was filled with an epoxy to fabricate a textured dielectric substrate. The BBNT sample was characterized by several analyzing tools in terms of machinability, microstructural evolutions, chemical compositions, crystalline phase, and dielectric properties. Bandwidth and gain of the patch antenna with the textured dielectric substrate were measured and compared with the simulated results.

Original languageEnglish
Pages (from-to)297-302
Number of pages6
JournalJournal of the American Ceramic Society
Volume88
Issue number2
DOIs
Publication statusPublished - 2005 Dec 1
Externally publishedYes

Fingerprint

Thermoplastics
antenna
Machining
Antennas
substrate
Substrates
void
Binders
dielectric property
Machinability
Microstructural evolution
Microstrip antennas
ceramics
Dielectric properties
titanium
Sintering
Titanium
chemical composition
Crystalline materials
Bandwidth

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Thermoplastic green machining for textured dielectric substrate for broadband miniature antenna. / Koh, Young-Hag; Halloran, John W.; Kiziltas, Gullu; Psychoudakis, Dimitris; Volakis, John.

In: Journal of the American Ceramic Society, Vol. 88, No. 2, 01.12.2005, p. 297-302.

Research output: Contribution to journalArticle

Koh, Young-Hag ; Halloran, John W. ; Kiziltas, Gullu ; Psychoudakis, Dimitris ; Volakis, John. / Thermoplastic green machining for textured dielectric substrate for broadband miniature antenna. In: Journal of the American Ceramic Society. 2005 ; Vol. 88, No. 2. pp. 297-302.
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