Multiband Microstrip-Fed Right Angle Slot Antenna Design for Wireless Communication Systems

ETRI Journal

关键词: slant ± 45 linear polarization;    tuning stub;    multiple independent frequency bands;    quad-band antenna;    Tri-band antenna;   

Others  :  1185810
DOI  :  10.4218/etrij.09.0108.0679

【 摘 要 】

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 ±45 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.

   

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