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研究生:賴意鵬
論文名稱:主動集成天線應用與無線通信系統衛星中繼器之研究
指導教授:劉智群劉智群引用關係
學位類別:碩士
校院名稱:國防大學中正理工學院
系所名稱:電子工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:79
中文關鍵詞:三次中繼衛星中繼器類環形微帶天線雙工天線暨耦合器
外文關鍵詞:the Tri-transfer satellite repeaterquasi-ring microstrip antennathe duplex antenna with coupler
相關次數:
  • 被引用被引用:1
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  • 收藏至我的研究室書目清單書目收藏:1
現今多元化的社會,資訊的交流已成為人們生活中不可或缺的一環,藉由行動通信之助,使資訊的存取更為便利,無時間、地點上的限制;然要達到全球個人通信的目標,欠缺了衛星通信是無法達成的。
衛星通信因系統架設耗時、昂貴及衛星電話設計複雜,價格亦不便宜,致無法普及使用。我們提出一種新的衛星通聯構想─三次中繼衛星中繼器。簡言之,將現行的行動電話的頻率改為或增設一能與衛星通聯的頻率,再經由地面上之衛星中繼器與衛星構成通聯。如此衛星電話不再需要將信號直接傳送或接收至太空中的衛星,將可大幅簡化衛星電話的設計及尺寸,吾人稱此衛星電話為低功率衛星電話。
在衛星中繼器的天線設計部份,提出一種新的結構─「類環形微帶天線」(quasi-ring microstrip antenna)之設計,並設計出一裝置─雙工天線暨耦合器(the duplex antenna with coupler),利用環形微帶線的模態特性,將發射天線的能量耦合至接收天線內降至最低,此一裝置同時具有雙工天線及耦合器之功能,減少元件使用,同時亦可減少傳輸信號能量的損耗,並減少收發系統間的信號干擾。經實驗量測證明,此雙工天線暨耦合器可行,收發天線可同時工作並具有耦合器之效能。

Interaction of information in our present diversified society has become a critical part of human life. Mobile communication, unlimited by time nor space, enables people to easily save and download information. However without satellite communication, it is impossible to achieve the goal of global personal communication.
Satellite cellular phone communication has not gained popularity in the worldwide markets due to following causes:difficulty in installing the whole systems, expensive cost, complex circuitry in satellite cellular phone and the expensive retail price. Hence we propose an innovative concept of satellite signal connection, namely, the Tri-transfer satellite repeater. This device will modify or increase the current cellular phone frequency in order to match a satellite signal connection. Satellite signals will be transmitted to the satellite repeater on the ground, and then transferred to the satellite. Satellite cellular phones, thereafter, no longer transmit nor receive signals directly from a satellite in space. This technology simplifies satellite cellular phone size and circuitry. Thus this kind of satellite cellular phone can be thought of as a low-powered satellite cellular phone.
We design, in particular, a new antenna for the satellite repeater ─the Quasi-ring microstrip antenna, and a new device ─ the duplex antenna with coupler. With the ring-microstrip’s mode features, the energy of the transmitting antenna is coupled to the receiving antenna, thus minimizing the energy. This device, which functions as a transceiver antenna and the coupler, simplifies component usage, lessens energy losses during transmission, and reduces signal interference along the transceiver system. From our experiments and measurements, we certify that our innovation is workable:transceiver antennas can simultaneously operate respective functions yet are capable of coupler efficiency.

誌謝
摘要
ABSTRACT
目錄
表錄
圖錄
1. 緒論
1.1 前言
1.2 研究動機與目的
1.3 論文架構
2. 無線電通信
2.1 無線電通信分類與發展
2.1.1 無線電通信分類
2.1.2 無線電通信發展
2.2 行動通信系統
2.2.1行動電話系統
2.2.2 蜂巢式行動電話系統
2.3 衛星通信
2.3.1 衛星通信基本概念
2.3.2 衛星通信特性
2.3.3 衛星通信系統分類
2.3.4 衛星中繼基本架構
2.3.5 衛星通信發展
3. 應用主動集成天線設計衛星中繼器
3.1 衛星中繼器設計
3.2 雙工天線暨耦合器設計
3.2.1 微帶天線簡介
3.2.2 環形微帶線模態特性
3.2.3 類環形微帶天線及雙工天線暨耦合器設計
3.3 放大電路設計
3.3.1 低雜訊放大電路設計
3.3.2 高功率放大電路設計
3.4 主動集成天線應用
3.4.1 主動集成天線簡介
3.4.2 主動集成天線應用設計
4. 實驗量測與分析
4.1 雙工天線暨耦合器量測
4.2 放大電路量測
5. 結論
參考文獻
自傳

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