Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

The Electrical Properties of Mo-doped BiNbO4 Ceramic Thick Film Monopole Antenna

Mo을 치환한 BiNbO4 세라믹 후막 모노폴 안테나의 전기적 특성

  • 서원경 (울산대학교 첨단소재공학부) ;
  • 허대영 (울산대학교 첨단소재공학부) ;
  • 최문석 (울산대학교 첨단소재공학부) ;
  • 안성훈 (울산대학교 전기전자정보시스템공학부) ;
  • 정천석 (울산대학교 전기전자정보시스템공학부) ;
  • 이재신 (울산대학교 첨단소재공학부)
  • Published : 2003.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

We fabricated thick film monopole antennas using Mo-doped BiNbO$_4$ ceramics and investigated their electrical properties as a function of the Mo-doping concentration. Compared with undoped BiNbO$_4$ ceramics, 10 at.% Mo-doping improved microwave dielectric properties of ceramics by increased sintered density as well as decreased space charge density. Further increase in the Mo-doping concentration caused formation of Bi$_2$MoO$_{6}$ phases, resulting in deterioration of the microwave characteristics. The gain and bandwidth of the ceramic monopole antenna were also greatly affected by the Mo-doping concentration. When Mo-doping concentration was 10 at.%, highest gain of -0.7dBi with lowest bandwidth of 30% at 2.3GHz was obtained.

Keywords

References

  1. IEEE MTT-s Digest Chip multilayer antenna for 2.45GHz-band application using LTCC technology Y.Dakeya;T.Suesada;K.Asakura;N.Nakajima;H.Mandai
  2. Elelctron. Lett. v.37 Tuning techniques for planar inverted-F antenna P.K.Panayi;M.O.Al-Nuaimi;I.P.Iverissimtzis https://doi.org/10.1049/el:20010692
  3. 한국전자파학회논문지 v.13 no.3 IMT-2000 단말기용 적층형 세라믹 칩 안테나의 설계 심성훈;강종윤;박용욱;윤석진;윤영중;김현재
  4. J. IEICE v.55 no.9 Electrical Small Antennas K.Fujimoto
  5. Radio and Wireless Conference, RAWCON 2000 Small broadband microstrip patch antenna for IMT-2000 handsets Y.Wang;C.K.Lee
  6. Proc. 30th Electronic Component Conf. Multi-layer ceramics, multi-chip module A.J.Bloodgett
  7. 전기전자재료학회논문지 v.9 no.9 적층형 마이크로파 소자용 $BiNbO_4$ 유전체 세라믹스의 유전특성 박정흠;장낙원;윤광희;최형욱;박창엽
  8. J. J. Appl. Phys. v.38 Improvement of quality value and Shift of $tau_{\Gamma}$ value of BiNbO₄ ceramics with addition of CuO-$V_2O_5$ mixtures C.F.Yang https://doi.org/10.1143/JJAP.38.6797
  9. 서울대학교 공학석사학위논문 $BiNbO_4$계의 저온 소결 특성 및 마이크로파 유전특성 김태견
  10. 전기전자재료학회논문지 v.11 no.3 $BiNbO_4$ 세라믹스의 유전특성과 미세구조에 관한 연구 고상기;김현학;김경용
  11. Jpn. J. Appl. Phys. v.38 The microwave dielectric properties and the microstructures of Bi(Nb, Ta)$O_4$ ceramics C.L.Huand;M.H.Weng https://doi.org/10.1143/JJAP.38.5949
  12. Mater. Reser. Bull. v.35 Low fire BiNbO₄microwave dielectric ceramics modified by $Sm_2O_3$ addition C.L.Huang;M.H.Weng;C.C.Wu;C.T.Lion
  13. IRE Trans. Microwave Theory and Tech. v.Mtt-8 A dielectric resonator method of measuring inductive capacities in the millimeter range B.W.Hakki;P.D.Coleman
  14. Electronic Ceramics B.Steele
  15. J. Eu. Ceram. Sov. v.21 Electrical properties of donor- and acceptor-doped $BaBi_4Ti_4O_{15}$ I.Pribosic;D.makovec;M.Drofenik https://doi.org/10.1016/S0955-2219(01)00011-5
  16. The 5th Joint Symposium on Electronic Materials Piezoeelctric and ferroelectric properties of $V^ {5-}$ doped $Bi_{3.25}La_{0.75}Ti_3O_{12}$ ceramics M.S.Choi;W.K.Seo;D.Y.Kim;J.S.Lee;C.W.Ahn;I.W.Kim;J.S.Song
  17. Mat. Chem. Phys. v.71 Effects of additives on microstructures and microwave dielectric properties of (Zr, Sn)$TiO_4$ ceramics C.L.Huang;M.H.Weng;H.L.Chen https://doi.org/10.1016/S0254-0584(00)00528-9
  18. Jpn. J. Appl. Phts. v.37 Microwave dielectric properties and far infrared reflectively spectra of the $(Zr_{0.8}Sn_{0.2})TiO_4$ ceramics with additives W.S.Kim;T.H.Hong;E.S.Kim;K.H.Yoon https://doi.org/10.1143/JJAP.37.5367
  19. Electroceramics A.J.Moulson;J.M.Herbert
  20. 한국전자파학회논문지 v.13 no.7 IMT-2000 단말기용 변형된 역 F형 광대역 세라믹 유전체 칩 안테나 이기성;채윤경;최익권