臺灣博碩士論文加值系統

本論文研究主題為適用於4G LTE之微型基地臺天線設計，以偶極天線設計為主要結構，分別設計於700/900MHz及1800/2100/2600MHz二種頻段之天線，並且進行實驗與研究。另外，針對1800/2100/2600MHz頻段，天線以1800/2600MHz頻段為設計，藉由調整天線參數，同時涵蓋2100MHz頻段實現三頻段操作。最後，將應用於低頻700/900MHz及高頻1800/2100/2600MHz雙天線設計於同一FR4板上，並進行研究與探討雙天線間隔離度問題，提供天線於微型基地臺多頻段之應用。

The subject of this thesis is the small cell antenna design for 4G LTE. The dipole antenna is designed as the main structure, and the antennas are designed for the two frequency bands of 700/900MHz and 1800/2100/2600MHz. The dual-band properties of the dipole antenna are presented and experimentally studied. For 1800/2100/2600MHz band, the antenna is designed operating 1800/2600MHz. Through adjusting the antenna parameters, the bands will cover 2100MHz band and the antenna can be achieved tri-band operating. Finally, the low-frequency band 700/900MHz and high-frequency band 1800/2100/2600MHz antennas will be designed on the same FR4 board. And, for the multi-band application for 4G small cells, the isolation characteristics between the two antennas will be conducted and investigated.

中文摘要 i
英文摘要 ii
誌謝 iii
文字目錄 iv
圖形目錄 vi
表格目錄 viii
第一章 序論 1
1.1 研究動機 1
1.2 文獻導覽 4
1.3 論文提要 5
第二章 適用於4G微型基地臺之1800/2100/2600MHz三頻天線設計 7
2.1 概述 7
2.2 天線結構設計 8
2.3 實驗結果與分析 10
2.4 結論 20
第三章 適用於4G微型基地臺之700/900MHz雙頻天線設計 21
3.1 概述 21
3.2 天線結構設計 22
3.3 實驗結果與分析 24
3.4 結論 32
第四章 適用於4G微型基地臺之雙天線隔離度探討 33
4.1 概述 33
4.2 天線結構設計 34
4.3 實驗結果與分析 36
4.4 結論 47
第五章 結論 48
參考文獻 49

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