操作於2.4GHz頻段且具近場輻射優化之陣列天線實現

Implementation of a 2.4GHz Band Phased Array Antenna with Optimum Nearfield Radiations

王凱德(Kai-Te Wang)

指導教授 ： 周錫增

元智大學/電機通訊學院/通訊工程學系/碩士(2012年)

摘要

陣列天線在一般應用當中能得到相當大的增益，廣泛用在基地台天線上，由近場輻射優化來達成應用的實現。
本論文的目的是設計應用於2.4GHz頻段的陣列天線，先設計出單一平面天線單元，再使用多個天線單元組成陣列天線，達成良好的增益。接著用功率分配器分出多條傳輸線，以傳輸線理論中電場回授大小是以弦波型態來呈現的觀念，將各個平面天線單元饋入點接到傳輸線上，進而達成實際應用上的實現。

關鍵字

近場輻射 陣列天線

並列摘要

The application of array antenna is continuously increasing, the design and implementation of 2.4GHz Band Phased Array Antenna with circularly polarization for UHF and array antenna with optimum nearfields radiations are presented in the thesis. Micro-strip patch antenna was chosen as the basic for 2.4GHz band. In order to achieve circularly polarization in array design, sequentially rotated technique was applied. We control amplitudes and phases of patch antennas to envoy array antenna focus on the distance of 1m and realize the optimum result. Use simply fiberglass (FR-4) and foam to fabricate the system, cost down a lot. Measurement results agreed with the simulation.

並列關鍵字

Nearfield Array Antenna

參考文獻

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