Open AccessMultiband Microstrip‐Fed Right Angle Slot Antenna Design for Wireless Communication Systems
Author(s) -
Rakluea Paitoon,
Anantrasirichai Noppin,
Janchitrapongvej Kanok,
Wakabayashi Toshio
Publication year - 2009
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.09.0108.0679
Subject(s) - omnidirectional antenna , ground plane , impedance matching , stub (electronics) , wimax , microstrip , microstrip antenna , slot antenna , electronic engineering , antenna (radio) , acoustics , wireless , electrical engineering , electrical impedance , computer science , engineering , telecommunications , physics
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.