Characterization and Dielectric Properties of Novel Dielectric Ceramics CaxZn(1-x)Al2O4 for GPS Patch Antennas

Wan Nasarudin Wan Jalal, Huda Abdullah, Mohd Syafiq Zulfakar, Sahbudin Shaari, Mohammad Thariqul Islam

    Research output: Contribution to journalArticle

    Abstract

    A solgel method was used to prepare CaxZn(1-x)Al2O4 thin films and fabricate GPS patch antennas. The addition of calcium (Ca) has increased the εr, crystallite size, and grain size, to increase the ceramics density. The three highest Q × f values appear at the position of x = 0.05 (31,091 MHz), 0.15 (63,906 MHz), and 0.25 (40,609 MHz), respectively. The best combination of microwave dielectric properties (εr ~ 9.02), Q × f ~ 63,906 MHz and with the lowest return lost (-25 dB) is obtained for specimen using Ca0.15Zn0.85Al2O4 (x = 0.15) ceramics, which is the suggested material for GPS patch antennas.

    Original languageEnglish
    JournalInternational Journal of Applied Ceramic Technology
    DOIs
    Publication statusAccepted/In press - 2013

    Fingerprint

    patch antennas
    Microstrip antennas
    Dielectric properties
    Global positioning system
    dielectric properties
    ceramics
    Crystallite size
    Q factors
    calcium
    Calcium
    grain size
    Microwaves
    microwaves
    Thin films
    thin films
    Microwave

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Materials Chemistry
    • Marketing
    • Ceramics and Composites

    Cite this

    Characterization and Dielectric Properties of Novel Dielectric Ceramics CaxZn(1-x)Al2O4 for GPS Patch Antennas. / Wan Jalal, Wan Nasarudin; Abdullah, Huda; Zulfakar, Mohd Syafiq; Shaari, Sahbudin; Islam, Mohammad Thariqul.

    In: International Journal of Applied Ceramic Technology, 2013.

    Research output: Contribution to journalArticle

    Wan Jalal, Wan Nasarudin ; Abdullah, Huda ; Zulfakar, Mohd Syafiq ; Shaari, Sahbudin ; Islam, Mohammad Thariqul. / Characterization and Dielectric Properties of Novel Dielectric Ceramics CaxZn(1-x)Al2O4 for GPS Patch Antennas. In: International Journal of Applied Ceramic Technology. 2013.
    @article{52589456dbf1400fa7d0dba9210fb0b5,
    title = "Characterization and Dielectric Properties of Novel Dielectric Ceramics CaxZn(1-x)Al2O4 for GPS Patch Antennas",
    abstract = "A solgel method was used to prepare CaxZn(1-x)Al2O4 thin films and fabricate GPS patch antennas. The addition of calcium (Ca) has increased the εr, crystallite size, and grain size, to increase the ceramics density. The three highest Q × f values appear at the position of x = 0.05 (31,091 MHz), 0.15 (63,906 MHz), and 0.25 (40,609 MHz), respectively. The best combination of microwave dielectric properties (εr ~ 9.02), Q × f ~ 63,906 MHz and with the lowest return lost (-25 dB) is obtained for specimen using Ca0.15Zn0.85Al2O4 (x = 0.15) ceramics, which is the suggested material for GPS patch antennas.",
    author = "{Wan Jalal}, {Wan Nasarudin} and Huda Abdullah and Zulfakar, {Mohd Syafiq} and Sahbudin Shaari and Islam, {Mohammad Thariqul}",
    year = "2013",
    doi = "10.1111/ijac.12193",
    language = "English",
    journal = "International Journal of Applied Ceramic Technology",
    issn = "1546-542X",
    publisher = "Wiley-Blackwell",

    }

    TY - JOUR

    T1 - Characterization and Dielectric Properties of Novel Dielectric Ceramics CaxZn(1-x)Al2O4 for GPS Patch Antennas

    AU - Wan Jalal, Wan Nasarudin

    AU - Abdullah, Huda

    AU - Zulfakar, Mohd Syafiq

    AU - Shaari, Sahbudin

    AU - Islam, Mohammad Thariqul

    PY - 2013

    Y1 - 2013

    N2 - A solgel method was used to prepare CaxZn(1-x)Al2O4 thin films and fabricate GPS patch antennas. The addition of calcium (Ca) has increased the εr, crystallite size, and grain size, to increase the ceramics density. The three highest Q × f values appear at the position of x = 0.05 (31,091 MHz), 0.15 (63,906 MHz), and 0.25 (40,609 MHz), respectively. The best combination of microwave dielectric properties (εr ~ 9.02), Q × f ~ 63,906 MHz and with the lowest return lost (-25 dB) is obtained for specimen using Ca0.15Zn0.85Al2O4 (x = 0.15) ceramics, which is the suggested material for GPS patch antennas.

    AB - A solgel method was used to prepare CaxZn(1-x)Al2O4 thin films and fabricate GPS patch antennas. The addition of calcium (Ca) has increased the εr, crystallite size, and grain size, to increase the ceramics density. The three highest Q × f values appear at the position of x = 0.05 (31,091 MHz), 0.15 (63,906 MHz), and 0.25 (40,609 MHz), respectively. The best combination of microwave dielectric properties (εr ~ 9.02), Q × f ~ 63,906 MHz and with the lowest return lost (-25 dB) is obtained for specimen using Ca0.15Zn0.85Al2O4 (x = 0.15) ceramics, which is the suggested material for GPS patch antennas.

    UR - http://www.scopus.com/inward/record.url?scp=84887736862&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84887736862&partnerID=8YFLogxK

    U2 - 10.1111/ijac.12193

    DO - 10.1111/ijac.12193

    M3 - Article

    JO - International Journal of Applied Ceramic Technology

    JF - International Journal of Applied Ceramic Technology

    SN - 1546-542X

    ER -