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A Radiation-Pattern Reconfigurable Antenna Array for Vehicular Communications.
1Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Sensors (Basel, Switzerland)
|July 13, 2024
Summary
This study introduces a novel reconfigurable antenna array with five radiation modes for vehicular communications. The design enables flexible beam steering, enhancing connectivity for moving vehicles.
Area of Science:
- Electrical Engineering
- Electromagnetics
- Antenna Theory
Background:
- Vehicular communication systems require antennas with adaptable radiation patterns to maintain reliable connections.
- Existing antenna solutions often lack the flexibility to switch between omnidirectional and directional beams efficiently.
Purpose of the Study:
- To develop a low-profile, reconfigurable antenna array capable of multiple radiation-pattern modes.
- To enhance vehicular communication capabilities through adaptable antenna performance.
Main Methods:
- Design of a four-element antenna array utilizing square patches and parasitic elements.
- Optimization of parasitic patch design, including slotting and shorting pins, for end-fire beam generation.
- Implementation of a reconfigurable feeding network with PIN diodes to control radiation modes.
Main Results:
- Achieved five distinct radiation-pattern modes: four end-fire beams and one omnidirectional beam.
- Demonstrated excellent impedance bandwidth, radiation pattern control, and gain across all operational modes.
- Validated the antenna's suitability for vehicular communication applications through comprehensive measurements.
Conclusions:
- The proposed reconfigurable antenna array offers a versatile solution for vehicular communication.
- The design's ability to switch between multiple radiation patterns enhances communication reliability and flexibility.
- This antenna technology supports advanced features in connected and autonomous vehicles.
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