以改變槽孔長度作為相位調整機制之雙層反射陣列

TWO-LAYER VARIABLE SLOT LENGTH REFLECTARRAY

鐘嘉新(Chia-Hsin Chung)

指導教授 ： 張知難

大同大學/電機資訊學院/通訊工程研究所/碩士(2007年)

摘要

本篇論文是利用單體中金屬貼片具有開槽尺寸，調整槽孔長度作為相位變化的控制變因。最後，適當擺放單體位置使得雙層板的反射陣列會聚焦效果，讓它能夠在12億赫茲頻率下作用。
經由實驗得知，新的反射陣列天線架構在11.8GHz有最大的增益24.39dB、1.5dB增益頻寬5.9%、天線孔隙效益31.4%而且正交極化也小於25dB。

關鍵字

反射陣列 ； 槽孔長度

並列摘要

In this thesis, a microstrip patch loaded with a slot is used as an element to realize a 12GHz passive reflectarray on a two-layer substrate. Phase of reflection is adjusted by tuning the length of each slot.
Experimental results showed that the maximum gain is 24.39dB at 11.8GHz. It has a 1.5-dB gain bandwidth of 5.9%. The aperture efficiency is 31.4% and the cross-polarization level is bellow around 25dB

並列關鍵字

reflectarray ； slot length

參考文獻

comparison of different element shaper used in printed reflectarrays,”

2. Jose A. Encinar, “Design of two-layer printed reflectarrays using patches

of variable size,” IEEE Trans. Antennas Propagat, vol. 49, no. 10, pp.1403-

1410, October 2001.

3. Dau-Chyrh Chang and Ming-Chih Huang, “Multiple-polarization microstrip