Premium
Isolation enhancement of patch antenna array via metamaterial integration
Author(s) -
Liu ZhaoTang,
Qu ShaoBo,
Wang JiaFu,
Zhang JieQiu,
Hua Ma,
Xu Zhuo,
Zhang AnXue
Publication year - 2016
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.30033
Subject(s) - metamaterial , split ring resonator , optoelectronics , materials science , microwave , resonator , isolation (microbiology) , substrate (aquarium) , coaxial , antenna (radio) , electrical engineering , engineering , telecommunications , oceanography , geology , microbiology and biotechnology , biology
A high‐isolation coaxial‐fed antenna array is proposed through the integration of metamaterial. To this end, a magnetic metamaterial, the substrate‐integrated split‐ring resonator (SI‐SRR), is designed and integrated in the shared substrate between two closely spaced antennas. Due to negative permeability of SI‐SRR, magnetic fields are blocked in the shared substrate. By suppressing the near‐field magnetic coupling, enhanced isolation between the two antennas is obtained. The antenna array was fabricated and measured. Both the simulated and measured results show that the proposed antennas can provide an isolation of 34.5 dB in the operation band, even when the gap between the two antennas is only nearly about 0.033λ. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2321–2325, 2016