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A compact ultra‐wideband CPW‐fed slot antenna with a forklike stub
Author(s) -
Lui W. J.,
Cheng C. H.,
Cheng Y.,
Zhu H. B.
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21046
Subject(s) - coplanar waveguide , stub (electronics) , slot antenna , coaxial antenna , wideband , antenna measurement , radiation pattern , j pole antenna , omnidirectional antenna , antenna tuner , electrical engineering , optoelectronics , microwave , electronic engineering , engineering , physics , telecommunications , antenna (radio)
A novel ultra‐wideband compact slot antenna fed by a grounded coplanar waveguide (CPW) is presented. This antenna is similar to the conventional CPW‐fed slot antenna, and a forklike tuning stub and a polygonlike slot are designed in order to increase the operation bandwidth of the antenna. It is investigated numerically and experimentally for its impedance bandwidth, radiation pattern, and gain. The obtained impedance bandwidth of the antenna is from 2.89 to 9.19 GHz (with return loss of less than −9.5 dB), which is over 3.2:1, and good omnidirectional performance over the entire frequency range is achieved. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 549–550, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21046