GPS接收機射頻前端模組之研製｜國立中央大學博碩士論文系統

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研究生：	涂曜麟 Yo-Lin Tuo
論文名稱：	GPS接收機射頻前端模組之研製 GPS Receiver RF Front-end Module
指導教授：	丘增杰 Tsen-Chieh Chiu
口試委員:
學位類別：	碩士 Master
系所名稱：	資訊電機學院 - 通訊工程學系 Department of Communication Engineering
畢業學年度：	93
語文別：	中文
論文頁數：	126
中文關鍵詞：	接收機、射頻前端
外文關鍵詞：	RF Front-end, receiver
相關次數：	點閱：12 下載：0
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本論文主要是探討利用共平面波導結構來實現GPS射頻前端接收機模組，其中包含三個部份，分別為天線、帶通濾波器以及低雜訊放大器。天線部分以多頻共振的原理，在不影響增益及方向性前提下，使頻寬由1.5%提升至3%；帶通濾波器則利用慢波（slow wave）結構，使得在頻寬及插入損失之間取得平衡時，尺寸能夠大幅縮小；最後低雜訊放大器則以型共平面波導不連續結構來完成，使得匹配網路更加穩定，並提供16.5dB的增益值。在設計過程中，皆針對結構中每一個重要參數對S參數的影響以及實作的可行性來加以討論，尋找簡易設計的程序，並且對設計時可能遭遇到的問題，以理論的方式分析並提供可行的解決辦法。

In the thesis, a RF front end for GPS receiver is designed using coplanar-waveguide structure. Three parts of the receiver are mainly considered：antenna, band pass filter, and low noise amplifier. Based on the principle of the multi-band resonance, the bandwidth of the antenna is increased for 1.5% to 3%, compared to single patch antenna. Moreover, it is done without sacrificing antenna gain. The filter is designed using slow-wave structure, and therefore the size is reduced significantly. The noise filter is designed using the -type CPW discontinuities, 16.5dB of gain of LNA is obtained. Every effects of important parameters on S-parameter and experiment feasibility are investigated. At the end simple design procedures are presented.

摘要.....................................................Ⅰ
致謝.....................................................Ⅲ
圖目錄...................................................Ⅶ
表目錄..................................................XII
第一章  序論..............................................1
1 全球衛星系統簡介................................1
2 共平面波導簡介..................................5
第二章  低雜訊放大器......................................7
1 低雜訊放大器設計原理............................8
2 低雜訊放大器模擬................................9
2.1 直流偏壓點的選擇.........................9
2.2 直流偏壓迴路設計........................10
2.3 電路穩定度分析..........................11
3 低雜訊放大器偏壓網路實作.......................15
3.1 雙層電路基板低雜訊放大器偏壓網路架構....15
3.2 TRL校正.................................18
3.3 雙層電路基板低雜訊放大器偏壓網路的量測..20
4 阻抗匹配網路...................................23
4.1 集總元件設計之匹配網路...................23
4.2 共平面波導不連續結構.....................29
4.3 共平面波導不連續結構之匹配網路...........39
5 低雜訊放大器實作...............................43
第三章  帶通濾波器.......................................47
1 濾波器簡介.....................................47
2 濾波器之理論分析...............................50
2.1 集總式濾波器理論分析.....................50
2.2 分散式帶通濾波器.........................55
3 帶通濾波器設計.................................74
第四張  天線.............................................82
1 矩形微帶天線理論分析...........................82
2 共平面波導餽入結構.............................89
3 E-Shape矩形微帶天線............................98
第五章  GPS接收機射頻前端之實現.........................113
1 天線和濾波器之組合............................113
2 濾波器和低雜訊放大器之組合....................119
3 射頻前端模組電路..............................122
第六章  結論............................................125
參考文獻................................................126

                                

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[10] Yuehe Ge, K. P. Esselle, T. S. Bird, “E-Shaped Patch Antenna for High-speed Wireless Networks,” IEEE Transactions on Antenna and Propagation, Vol. 52, NO. 12, December 2004.
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