研究目的
To design a wideband reconfigurable folded planar dipole antenna using MEMS and hybrid polymeric substrates capable of beam steering on the xz-plane with a bandwidth of 1 GHz and maximum gain of 5.11 dB.
研究成果
The integration of an AMC plane with a modified folded dipole antenna on polymeric substrate (PDMS) demonstrates beam steering of 30° and -24° with a high front-to-back ratio (FBR) and maximum gain of 5.11 dB. A large bandwidth of up to 1 GHz (10.6%) is achieved, making it suitable for smart communication systems.
研究不足
The presence of the PDMS substrate results in higher material losses, affecting the total efficiency. The measured bandwidths are slightly smaller compared to simulations due to fabrication errors and material tolerance variations.
1：Experimental Design and Method Selection:
The design starts with defining and analyzing the phase and magnitude response of the AMC unit cell. The AMC is integrated with a folded planar dipole antenna on hybrid polymeric substrates. RF MEMS switches are integrated for beam steering capability.
2：Sample Selection and Data Sources:
The antenna is designed to operate at 9.41 GHz. The performance is evaluated using unit cell boundaries and Floquet ports in the CST electromagnetic solver.
3：41 GHz. The performance is evaluated using unit cell boundaries and Floquet ports in the CST electromagnetic solver.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: The antenna uses Taconic TLY-5 substrate, PDMS polymeric substrate, and copper for the AMC and ground plane. RF MEMS switches (model RMS101 from Radant) are used for reconfigurability.
4：Experimental Procedures and Operational Workflow:
The antenna is fabricated with the same dimensions as optimized in simulation. The reflection coefficient and radiation patterns are measured and compared with simulations.
5：Data Analysis Methods:
The performance is evaluated in terms of bandwidth, gain, efficiency, and beam steering capability.
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