Broad-Band Microstrip Patch Antenna with an L-Shaped Strip

L자 형태의 급전구조를 갖는 광대역 마이크로스트립 패치 안테나

  • 김종규 (전자부품연구원 무선회로연구센터) ;
  • 이호준 (전자부품연구원 무선회로연구센터) ;
  • 오환술 (건국대학교 전자공학과)
  • Published : 2001.08.01


The L-shaped strip is shown to be an attractive feed for the thick microstrip antenna (thickness around 10% of the operating wavelength). The L-strip incorporated with the radiating patch introduces a capacitance suppressing some of the inductance introduced by the strip itself. In this paper, a wideband microstrip patch antenna fed by L-strip for the PCS (1,750~1,850 MHz) and IMT-2000 (1,920~2,170 MHz) broad-band is presented. A two-element array fed by L-strip is also proposed. Both the antennas have stable radiation patterns across the passband. The impedance bandwidth is over 31% (VSWR < 1.5, 615 MHz) of the center frequency. Moreover, both the antennas have about 7 dBi average gain.



  1. 월간 모바일컴 no.6월 국내 이동통신 가입자 통계
  2. Microstrip Antenna Design Handbook Ramesh. Garg;Prakash. Blartia;Inder. Bahl;Apisak. Ittipiboon
  3. Proc. IEEE v.80 Microstrip Antennas D. M. Pozar
  4. Electronics Letters v.35 no.2 Broadband stacked shorted patch R. B. Waterhouse
  5. Electronics Letters v.32 Wideband aperture coupled stacked patch antenna using thick substrates S. D. Targonski;R. B. Waterhouse;D. M. Pozar
  6. Antennas and Propagation, IEEE Transactions on v.46 no.9 Design of wide-band aperture-stacked patch micro strip S. D. Targonski;R. B. Waterhouse;D. M. Pozar
  7. IEEE AP-S A wide-band single- layer patch antenna Naftall Herscovici
  8. IEEE Proc. v.144 Experimental and simulation studies of the coaxially fed U-slot rectangular patch antenna K. F. Lee;K. M. Luk;F. Tong;S. M. Shum
  9. IEEE Antennas & Propagation, Symposium A design theory on broadband patch antenna with slot Y. L. Chow;Z. N. Chen;K. F. Lee;K. M. Luk
  10. IEEE Transactions On Antennas And Propagation v.48 no.5 Experimental study of a microstrip patch antenna with an L-shaped probe C. L. Mak;K. M. Luk;K. F. Lee;Y. L. Chow
  11. IEEE Transactions On Antennas and Propagation v.49 no.2 Analysis and design of L-probe proximity fed patch antenna Y. X. Guo;K. M. Luk;K. F. Lee
  12. Broadband Patch Antennas Jean-Francois Zurcher;Fred E. Gardiol