A compact multiband monopole antenna with a defected ground plane
AuthorAntoniades, Marcos A.
Eleftheriades, G. V.
SourceIEEE Antennas and Wireless Propagation Letters
Google Scholar check
MetadataShow full item record
A compact multiband antenna is proposed that consists of a printed circular disc monopole antenna with an L-shaped slot cut out of the ground, forming a defected ground plane. Analysis of the current distribution on the antenna reveals that at low frequencies the addition of the slot creates two orthogonal current paths, which are responsible for two additional resonances in the response of the antenna. By virtue of the orthogonality of these modes the antenna exhibits orthogonal pattern diversity, while enabling the adjacent resonances to be merged, forming a wideband low-frequency response and maintaining the inherent wideband high-frequency response of the monopole. The antenna exhibits a measured -10 dB S11 bandwidth of 600 MHz from 2.68 to 3.28 GHz, and a bandwidth of 4.84 GHz from 4.74 to 9.58 GHz, while the total size of the antenna is only 24 × 28.3 mm. The efficiency is measured using a modified Wheeler cap method and is verified using the gain comparison method to be approximately 90% at both 2.7 and 5.5 GHz. © 2009 IEEE.
Showing items related by title, author, creator and subject.
Zhu, J.; Antoniades, Marcos A.; Eleftheriades, G. V. (2009)
Antoniades, Marcos A.; Eleftheriades, G. V. (2009)A printed monopole antenna is proposed which uses negative-refractive-index transmission-line (NRI-TL) metamaterial loading in order to achieve a broadband dual-mode operation. The metamaterial-loaded monopole supports a ...
Antoniades, Marcos A.; Abbasi, M. A. B.; Nikolic, M.; Vryonides, P.; Nikolaou, S. (Institute of Electrical and Electronics Engineers Inc., 2017)A compact planar monopole antenna backed by an electromagnetic bandgap (EBG) structure is presented. The antenna is conformal to the human body and is intended for wearable applications in wireless body area networks. It ...