研究目的
Investigating the design and performance of a fully integrated 1×4 filtering linear antenna array using substrate integrated waveguide technology.
研究成果
A linear 1×4 filtering antenna array designed in SIW technology has been presented. The design was accomplished using filter synthesis techniques and the slot antennas were used to excite higher-order modes in the output cavities, producing a higher filtering order and transmission zeros outside the gain passband for sharp rejection. The filtering array is centered at 6.75 GHz and has a 5.0% FBW with a maximum gain of 7.44 dBi.
研究不足
The radiation loss performance of the array can be greatly improved by using a thicker substrate and multi-mode cavities to enhance the bandwidth.
1：Experimental Design and Method Selection:
The filtering array is designed in substrate integrated waveguide (SIW) technology with five coupled hexagonal cavities producing a 6th-order filtering function. The antenna array is fed with a single coplanar waveguide (CPW) input.
2：Sample Selection and Data Sources:
The device is simulated with ANSYS High Frequency Structure Simulator (HFSS).
3：List of Experimental Equipment and Materials:
The filtering array is designed on a 31-mil-thick Rogers Druid/RT 5880 substrate.
4：Experimental Procedures and Operational Workflow:
The performance is tuned in the time domain using the techniques in [6].
5：6]. Data Analysis Methods:
5. Data Analysis Methods: The simulated S11 and gain are plotted to evaluate the performance.
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