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- Title
A Miniaturized Folded Antenna Array for MIMO Applications.
- Authors
Elwi, Taha A.
- Abstract
In this paper, a novel cylindrical antenna array of a miniaturized structure is introduced for multi input multi output systems. The antenna array is consistent of four omega-shaped monopoles folded on a flexible cylindrical substrate of Kodak photo papers. The cylinder height is fixed to λ/4.5 with a diameter of λ/3.5, where λ is the free space wavelength at 2.25 GHz, with a separation distance between monopole elements of λ/29. The maximum mutual coupling between the monopoles elements over the frequency range from 2 to 3 GHz is found about −30 dB at the resonant frequency. Such coupling reduction is achieved by mounting conformal Spit Ring Resonators between the monopoles and backed by an electromagnetic band gap structure. An Ink-jet deposition process is used to print the array structure with sliver nano-particles on the substrate. Experimentally, S spectrum is measured as well as the radiation patterns on both E- and H-plans at 2.25 GHz. It is found, the proposed array exhibits a gain of 2.5 dBi with broad side radiation patterns. An excellent agreement is achieved between the measured and simulated results.
- Subjects
FOLDED antennas; ANTENNA array testing; MIMO systems; MONOPOLE antenna arrays; CONFORMAL antennas
- Publication
Wireless Personal Communications, 2018, Vol 98, Issue 2, p1871
- ISSN
0929-6212
- Publication type
Article
- DOI
10.1007/s11277-017-4950-4