تقرير
超寬頻通訊之全向場性小天線設計 ; Omnidirectional compact antenna design for Ultra-wideband Communication System
| العنوان: | 超寬頻通訊之全向場性小天線設計 ; Omnidirectional compact antenna design for Ultra-wideband Communication System |
|---|---|
| المؤلفون: | 鄭士康 |
| المساهمون: | 國立臺灣大學電信工程學研究所 |
| بيانات النشر: | 臺北市：國立臺灣大學電信工程學研究所 |
| سنة النشر: | 2004 |
| المجموعة: | National Taiwan University Institutional Repository (NTUR) |
| مصطلحات موضوعية: | 超寬頻技術, 無線通訊, 寬頻天線, 全向性場型, 漸變開槽天線, 印刷偶極天線, Ultra-wideband technology, wireless communication, wideband antenna, omnidirectional pattern, tapered slot antenna, printed dipole antenna |
| جغرافية الموضوع: | 計畫年度：92, 起迄日期：2003-08-01/2004-07-31 |
| الوصف: | 超寬頻技術(Ultra-wideband, UWB) 是近 二年來無線通訊領域中最受曙目的一種通訊 技術，其傳輸速率高，功率消耗極低，硬體架 構簡單且可與現有各種通訊系統共享頻寬。在 頻寬日漸擁擠的今日，確成為無線通訊領域中 的新興之星。然而，要設計符合超寬頻技術所 需之寬頻天線，卻不是容易的任務。此天線需 同時達成寬頻的阻抗，全向性場型，穩定的增 益及線性的相位，高輻射效率以及小型化設 計。本研究計畫斟酌漸變開槽天線(tapered slot antenna)具有極寬頻的優點與印刷偶極天線 (printed dipole antenna)具有全向性場型的特 性，藉由電磁模擬軟體的輔助與實驗驗證，成 功設計出適用於超寬頻技術的新型天線。針對 此新型天線，我們進行了一系列之參數變化探 討，以及頻域與時域的天線特性分析。本計畫 所提出之新型天線將同時適用於各類室內無 線通訊系統乃至於其他寬頻應用。 ; experienced a blooming growth in the past few years. The basic idea of this promising technology is to directly transmit and receive trains of extremely short baseband pulses that spread over bandwidth of several GHz. It features high-speed data rates, excellent immunity to multipath interference, low power consumption and reduced hardware complexity. It can coexist with other radio systems without causing harmful interference and gives the possibility to ease the crowded frequency spectrum in modern days. Generally speaking, it is quite challenging to design an antenna to simultaneously fulfill all the requirements in an UWB system, including ultra-wide bandwidth, omnidirectional patterns, constant gain and group delay over the entire band, high radiation efficiency and low profile. In this project, a novel ultra-wideband antenna topology is proposed and investigated. This new antenna successfully combines the ultra-wideband characteristics of the tapered slot antennas with the unique features of the printed dipole antennas, i.e. the omnidirectional patterns. The parameter study is performed, and the antenna performance is analyzed in both frequency as well as time domains. In addition, the proposed antenna will be suitable for other indoor wireless communication systems as well as wideband applications. |
| نوع الوثيقة: | report |
| وصف الملف: | application/pdf; 422531 bytes |
| اللغة: | Chinese |
| العلاقة: | 922213E002067; http://ntur.lib.ntu.edu.tw/handle/246246/20288Test; http://ntur.lib.ntu.edu.tw/bitstream/246246/20288/1/922213E002067.pdfTest |
| الإتاحة: | http://ntur.lib.ntu.edu.tw/handle/246246/20288Test http://ntur.lib.ntu.edu.tw/bitstream/246246/20288/1/922213E002067.pdfTest |
| حقوق: | 國立臺灣大學電信工程學研究所 |
| رقم الانضمام: | edsbas.E4173C8E |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |