A Compact Wideband Dual-Polarized Antenna with Harmonic Suppression Using Nonuniform Defected Ground Structure

Autor: Lana Damaj, Anne-Claire Lepage, Xavier Begaud
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: International Journal of Antennas and Propagation, Vol 2015 (2015)
Druh dokumentu: article
ISSN: 1687-5869
1687-5877
DOI: 10.1155/2015/505123
Popis: A wideband dual-polarized coplanar waveguide (CPW) fed antenna integrating a wide stop-band filter is presented. The designed filter is based on a nonuniform defected ground structure (DGS) in order to obtain a wide stop-band and a compact size. This filter is used to reject harmonics and spurious radiation arising from the RF front end. The complete structure (antenna and filter) has been optimized to have a compact size of 0.6×0.6λ02 (λ0 being the free-space wavelength at the lowest operating frequency). The realized antenna operates in the frequency range between 2.7 GHz and 5.9 GHz (bandwidth of about 74%). The isolation between feeding ports is more than 18 dB. The complete structure has a wide stop-band characteristic (103%) for harmonic rejection. The simulated numerical results have been confirmed with measurements.
Databáze: Directory of Open Access Journals
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