A Compact Multiband Shark-Fin Antenna for Integrated V2X Communication Systems.

Area of Science:

• Electrical Engineering
• Antenna Theory

Background:

• Vehicle-to-Everything (V2X) platforms require robust and integrated communication systems.
• Space constraints on vehicle rooftops necessitate compact and efficient antenna solutions.

Purpose of the Study:

• To propose a compact multiband shark-fin antenna for integrated V2X platforms.
• To achieve simultaneous support for multiple communication services including FM, TETRA, cellular, and Wi-Fi.

Main Methods:

• Design and integration of five radiating elements within a 90×15×30mm3 footprint.
• Utilizing planar inverted-F antennas (PIFAs) for wideband cellular and inverted-F antennas (IFAs) for Wi-Fi.
• Employing compact meandered-line configurations for FM and TETRA elements.

Main Results:

• Simultaneous operation across FM (88-108 MHz), TETRA (380-470 MHz), wideband cellular (0.68-6.05 GHz), and dual-band Wi-Fi.
• Achieved inter-element isolation better than -15 dB across all operating bands.
• Stable radiation performance with realized gains from 1.5 dBi to over 5 dBi and cross-polarization below -13 dB.

Conclusions:

• The proposed compact multiband antenna is well-suited for integrated V2X applications.
• The design effectively addresses space constraints while maintaining high performance and multi-radio coexistence.