Multi-Frequency and Dual-Mode Patch Antenna Based on Electromagnetic Band-gap (EBG) Structure

Microstrip patch antenna with multi-frequency and dual-mode is presented in this communication. The introduction of metamaterial substrate made of modified mushroom-type electromagnetic band-gap (EBG) structure enables the multi- functions. The composite right/left-handed transmission line (CRLH TL)...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2012-12, Vol.60 (12), p.6007-6012
Main Authors: Cao, Wenquan, Zhang, Bangning, Liu, Aijun, Yu, Tongbin, Guo, Daosheng, Pan, Xiaofei
Format: Article
Language:English
Subjects:
Antenna measurements
Antenna radiation patterns
Antennas
Applied sciences
Banded structure
Design engineering
Electric power lines
Electromagnetic band-gap (EBG) structure
Exact sciences and technology
Linear polarization
Metamaterials
Microstrip antennas
microstrip patch antennas (MPAs)
multi-frequency dual-mode
Patch antennas
Periodic structures
Radiocommunications
Telecommunications
Telecommunications and information theory
Transmission lines
Wavelengths
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Summary:Microstrip patch antenna with multi-frequency and dual-mode is presented in this communication. The introduction of metamaterial substrate made of modified mushroom-type electromagnetic band-gap (EBG) structure enables the multi- functions. The composite right/left-handed transmission line (CRLH TL) theory and multi-conductor transmission line (MTL) theory are introduced to analyze and design this kind of antenna. Three modes including one monopolar radiation pattern in the n =0 mode and two patch-like radiation patterns in the n =-1, 1 modes respectively are analyzed and can be tuned by the parameters of the EBG structure. Since geometry of the radiating patch does not affect the infinite wavelength mode, circular polarization (CP) is obtained for the n =+1 mode by truncating the square radiating patch with linear polarization (LP) for the n =0 mode staying unchanged. Thus dual polarized antenna is obtained. Two prototypes of probe-fed patch antennas are fabricated to verify the theory analysis.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2012.2211554