研究目的
Investigating the design approach of a filtering antenna arrays based on the coupling matrix theory.
研究成果
The two-element filtering antenna array designed using a novel topology configuration and the coupling matrix approach demonstrated stable realised gain over the passband with a value of 9.8 dBi and ~ 0.4 dBi variation. The FBW was 10% at S11 = - 20 dB. Measurements were in very good agreement with the simulation.
研究不足
The out-of-band attenuation level is not as large as desired due to employing fewer resonators to create each of the radiating path.
1：Experimental Design and Method Selection:
The design approach is based on the coupling matrix theory, utilizing resonating array radiating elements and a resonator-based feed network.
2：Sample Selection and Data Sources:
The array is designed using rectangular waveguide cavity resonators.
3：List of Experimental Equipment and Materials:
Aluminium Alloy (conductivity =
4：56×107 S/m) is used for the filtering array. Experimental Procedures and Operational Workflow:
The array is fabricated using a Computer Numerical Control (CNC) milling machine.
5：Data Analysis Methods:
The S11 and realised gain are measured and compared with simulations.
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