Design of the CPW-Fed Triple-band Internal Planar Monopole Antenna

CPW 급전 삼중대역 내장형 평면 모노폴 안테나 설계

  • Lim, Jung-Sup (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Kim, Cheol-Bok (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Jang, Jae-Sam (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Lee, Ho-Sang (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Jung, Young-Ho (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Cho, Dong-Ki (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Lee, Mun-Soo (Engineering Research Institute, Gyeongsang National University)
  • 임정섭 (경상대학교 전자공학과) ;
  • 김철복 (경상대학교 전자공학과) ;
  • 장재삼 (경상대학교 전자공학과) ;
  • 이호상 (경상대학교 전자공학과) ;
  • 정영호 (경상대학교 전자공학과) ;
  • 조동기 (경상대학교 전자공학과) ;
  • 이문수 (경상대학교 공학연구원)
  • Published : 2007.12.25

Abstract

In this paper, the CPW-fed triple-band internal planar monopole antenna which simultaneously meets the three bands such as Cellular, PCS and Wibro is designed. The size of the radiation elements can be reduced to about $\lambda/4$ by designing the CPW-fed monopole antenna and then we can miniaturize the antenna size by meandering the radiation elements. In addition, we design the planar antenna for the slim-type mobile phone. We can obtain the desired antenna properties by controlling the length of each radiation elements. The measured return loss of the antenna is less than -7 dB at the desired bandwidth. And the measured radiation patterns are similar to that of the monopole antenna. The designed antenna has the gains -5.2 dBi. -2 dBi, -0.4 dBi at each resonant frequencies respectively.

References

  1. Y. X. Guo and G. S. Tan, 'New compact six-band internal antenna.' IEEE antennas wireless propagation letters, vol. 3, pp.259-297, June. 2004
  2. I. Ang, B. L. Ooi, 'A broad ban stacked microstrip patch antenna,' APMC2005 proceeding
  3. W. I. Kwak, S. O. Park, J. S. Kim, 'A folded planar inverted-F antenna for GSM/DCS/ Bluetooth triple-band appltication,' IEEE antennas and propagation letters, vol. 5, 2006
  4. H. Park, K. Chung, J. Choi, 'Design of a planar inverted-F antenna with very wide impedance bandwidth,' IEEE Microwave and Wireless components letters, vol. 16, no. 3, March 2006
  5. H. Park, K. Chung, J. Choi, 'Design of a planar inverted-F antenna with very wide impedance bandwidth,' IEEE Microwave and Wireless components letters, vol. 16, no. 3, March 2006
  6. K. L. Wong, J. Y. Sze, 'Dual-frequency slotted rectangular microstrip antenna,' Electron. Lett. 33. 1368-1370, July 9, 1998
  7. J. H. Lu, K. L. Wong, 'Dual frequency rectangular microstrip antenna with embbeded spur lines and integrated reactive loading,' Microwave Opt. technol. Lett. 21, 272-275, May 20, 1999 https://doi.org/10.1002/(SICI)1098-2760(19990520)21:4<272::AID-MOP12>3.0.CO;2-V
  8. C. A. Balanis, 'Monopole Antennas', in Antenna Theory and Design. New York : Wiley, 1997, ch 4
  9. Melvin M. Weiner, 'Monopole Antennas', New York : Marcel Derrer, 2003, pp. 49-69