研究目的
To explore the generation and manipulation of composite vortices in order to design a single patch antenna that exhibits a sector radiation pattern and emulates the radiation properties of a dipole placed at a quarter of wavelength from a reflector.
研究成果
The study demonstrates that topological properties of vortex fields can be exploited to design a patch antenna with a sector radiation pattern, emulating the one of a dipole with a reflector placed at quarter wavelength distance. This approach may find applications in communication systems requiring compact directional antennas with different beamwidth on vertical and horizontal directions.
研究不足
The study is based on numerical simulations and may require experimental validation to confirm the findings.
1：Experimental Design and Method Selection:
The study involves the design of a patch antenna that can radiate simultaneously a right-handed (RH) CP TM11 mode and a RH CP TM31 mode to manipulate the radiation pattern.
2：Sample Selection and Data Sources:
The antenna system is designed to radiate at the same frequency, with the fundamental mode radiated by the inner circular patch and the higher order mode by the external annular ring.
3：List of Experimental Equipment and Materials:
A patch antenna system excited through a proper coaxial feed.
4：Experimental Procedures and Operational Workflow:
The behavior of the proposed structure is evaluated through full-wave numerical simulations.
5：Data Analysis Methods:
The radiation pattern of the designed antenna is compared with that of a dipole placed at a quarter of wavelength from a reflector.
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