Open AccessModification of higher order natural mode in metamaterial loaded patch antenna
Author(s) -
Al Nahiyan Swad,
Salehin Ahmed R.,
Mahdy Mahdy Rahman C.,
Sagor Md Hasanuzzaman
Publication year - 2019
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2018.5113
Subject(s) - broadside , side lobe , metamaterial , microstrip antenna , patch antenna , optics , antenna (radio) , metamaterial antenna , microstrip , acoustics , physics , antenna array , array gain , computer science , telecommunications , slot antenna
Usually microstrip patch antennas radiate at the broadside direction. Instead of the broadside direction, if a patch antenna radiates in a different direction in a controlled way, it may open a novel way of antenna array miniaturisation. For conventional patch antennas, higher order resonance modes are usually considered entirely useless due to the splitting of the maximum radiated power. In this work, a generic process of modifying the higher order natural resonance mode has been proposed by using metamaterial. Owing to this modification, maximum radiation in a particular direction has been achieved while the gain of the side lobe has been decreased at a great instinct. Furthermore, the main lobe is far shifted than the conventional broadside direction. Interestingly, the proposed dual band antenna radiates in two different directions in two different radiating bands, which can be very useful for the possible miniaturisation of printed antenna array.