Premium
A novel broadband multislot antenna fed by microstrip line
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.20721
Subject(s) - antenna measurement , microstrip antenna , antenna gain , radiation pattern , antenna factor , broadband , patch antenna , return loss , optics , bandwidth (computing) , dipole antenna , electrical engineering , physics , engineering , acoustics , antenna (radio) , telecommunications
Abstract A novel broadband multislot antenna fed by microstrip line is presented. By employing the multislot configuration, multimode resonances with close frequencies can be introduced. By designing the dimension of these slots and its feed network properly, the impedance bandwidth of the antenna can be drastically increased. The antenna's impedance bandwidth, radiation pattern, and gain over its operation frequency band are investigated experimentally. From the measured results, it is shown that the impedance bandwidth of the antenna is from 5.65 to 8.79 GHz, which is over 40% for return loss | S 11 | below −9.5 dB. The measured radiation pattern and gain at different frequencies of the antenna are presented and discussed, and it is shown that a relatively constant radiation pattern and gain over the entire frequency range can be achieved. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 55–57, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20721