Miniaturization of Sub 6 GHZ Band 5G Monopole Antenna with Manganese Assisted CoFe2O4 Nano Self-Assembly Magneto-Dielectric Coating
Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide This paper proposes a miniaturized monopole antenna for sub-6 GHz 5G mobile applications by integrating a magneto-dielectric superstrate. The Magneto dielectric material is composed of manganese-assisted CoFe 2 O 4 ferrite-based nanoself-assembly materials. The Gel Matrix method is utilized to synthesize MnFe 2 O 4, CoFe 2 O 4, and Mn-doped CoFe 2 O 4 magneto-dielectric ferrite nanoparticles. Structural and morphological analysis of the synthesized particles is conducted using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The magneto-dielectric (MDL) coating over the antenna is done by mixing the ferrite powders with polyvinylidene fluoride (PVDF) polymer. The effects of the magneto dielectric layer on the monopole antenna’s performance are assessed in terms of return loss, radiation pattern, and impedance bandwidth using a vector network analyzer and an Anechoic Chamber. A significant improvement in the impedance bandwidth (400 MHz) is observed for the Mn-doped CoFe 2 O 4 –PVDF coating, achieving a bandwidth of 3.00 to 3.4 GHz. The antenna exhibits miniaturization with a resonance frequency shift to 3.2 GHz, achieving a peak gain of 2.6 dBi. The results demonstrate that the Mn-doped CoFe 2 O 4 –PVDF superstrate effectively supports antenna miniaturization for the sub-6 GHz frequency bands, such as n77 and n78, used in 5G applications.
Source: ACS Omega
Language: English
Topic: Antenna Design and Analysis
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,935
OpenAlex ID: W4411206582