研究目的
To introduce a nonlinear phase enhancement of multi-resonance composite right/left-handed unit cell for multi-band antennas, achieving compact size and multi-band operation.
研究成果
The paper successfully introduces a nonlinear phase enhancement technique for CRLH metamaterial antennas, enabling compact size and multi-band operation. Good agreement between simulated and measured results validates the design approach.
研究不足
The study is limited by fabrication imperfections and connector soldering processes, which may cause frequency shifts in measured results compared to simulations.
1：Experimental Design and Method Selection:
The study involves designing and comparing two configurations of CRLH unit cells for antennas, one with a stub and another stub-less, to achieve phase enhancement and multi-band operation.
2：Sample Selection and Data Sources:
Antennas are printed on an FR4 substrate with specific relative permittivity and thickness.
3：List of Experimental Equipment and Materials:
FR4 substrate, interdigital capacitors, shunt stub inductors, and vias for inductor realization.
4：Experimental Procedures and Operational Workflow:
Design antennas, simulate using CST microwave studio, fabricate prototypes, and measure performance.
5：Data Analysis Methods:
Compare simulated and measured reflection coefficients and phase shifts to validate the design.
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