Abstract
AbstractA square array of air columns is embedded in a dielectric substrate to form the photonic‐bandgap (PBG) structure and the band‐gap of such a PBG structure is analyzed at first. Then a broadband circularly polarized antenna based on the PBG structure is introduced. Through selecting appropriate lattice period and air column radius, the surface wave can be suppressed effectively and the circularly polarized characteristic can be improved when the resonant frequency (f = 12.5 GHz) of the antenna fell in the band‐gap of the PBG structure. After calculating and testing, the 20.6% (VSWR [lt] 2) bandwidth and 27.4% 3‐dB axial ratio bandwidth are achieved, respectively. Such circularly polarized antenna can be used extensively in communications field. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 954–957, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23257
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
