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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Multiband Microstrip-Fed Right Angle Slot Antenna Design for Wireless Communication Systems

  • Rakluea, Paitoon (Department of Information Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Anantrasirichai, Noppin (Department of Information Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Janchitrapongvej, Kanok (Department of Information Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Wakabayashi, Toshio (School of Information Science and Engineering, Tokai University)
  • Received : 2008.11.23
  • Accepted : 2009.04.13
  • Published : 2009.06.30
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Abstract

This paper presents a novel multiband microstrip-fed right angle slot antenna design technique for multiple independent frequency bands. The new technique uses various slot sizes at various appropriate positions. We first propose a tri-band slot antenna consisting of three right angle slots. Then, a quad-band slot antenna is developed with four right angle slots which achieves slant ${\pm}45^{\circ}$ linear polarization, omnidirectional pattern coverage, good antenna gain, and acceptable impedance bandwidths over all the operating frequency range. Moreover, an open-circuited tuning stub is introduced to achieve good impedance matching. Both proposed antennas are designed on a ground plane of RT/duroid 5880 substrate with a thickness of 1.575 mm. The real measurable results show that the desired frequencies used in wireless communication systems, namely, WLAN and WiMax, are efficiently achieved.

Keywords

References

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