應用於筆記型電腦之全平面式五頻天線

Abstract

本論文研製應用於輕薄的筆記型電腦之天線，以槽孔天線設計原理為基礎，陸續推廣到寬頻、雙頻，以致五頻的天線架構，而五頻天線其操作頻帶包含GSM/DCS/PCS/UMTS (824MHz~960MHz, 1710MHz~2170MHz)，應用印刷電路板來實現天線架構，造成全平面性的特質適合超薄的筆記型電腦，同時能降低成本。爾後針對天線於筆記型電腦中的應用，分別就其可能發生的情況如放置位置的改變，接地面大小或形狀的變更一一深入討論，展現出五頻天線架構上良好的適應性，並能夠在操作頻率中維持一定的天線增益與天線場型的一致性。

This thesis focuses on the use of antenna in thin laptop applications. Based on slot antenna theory, we extend the fabrication to broadband, dual-band, and five-band applications. The five-band antenna is able to be operated on the GSM850/GSM900/PCS/DCS/UMTS. We use printed circuit broad (PCB) to realize this five-band antenna. The planar property is suitable for thin laptop cases. At the same time, using PCB could reduce the cost of manufacture. Then, we further address the possible conditions for laptop applications with antenna. The antenna average gain is about 0 dBi, and radiation patterns are similar at different resonances. All together, it shows good adaptability to antenna position and ground effects.