Premium
An impedance matching design approach for a dual‐band coplanar‐waveguide‐fed slot antenna
Author(s) -
Joubert J.,
Odendaal J. W.
Publication year - 2008
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.23565
Subject(s) - coplanar waveguide , stub (electronics) , impedance matching , slot antenna , electrical impedance , microwave , multi band device , reflection coefficient , antenna tuner , optics , antenna (radio) , electrical engineering , optoelectronics , electronic engineering , engineering , materials science , physics , dipole antenna , telecommunications , antenna efficiency
In this study, it is shown how dual‐band performance can be achieved from a single coplanar‐waveguide‐fed slot by using an impedance matching design approach. The coplanar‐waveguide‐fed slot is connected to a high‐impedance coplanar‐waveguide transmission line stub terminated with a capacitor. The two elements (slot and terminated stub) forming the antenna can be designed such that the series slot impedance added to the input impedance of the terminated stub result in two distinct resonances at the desired center frequencies for a dual‐band application. A dual‐band 2.4/5.2 GHz antenna is designed, and simulations are validated by the measured reflection coefficient and radiation pattern results. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2031–2034, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23565