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Please use this identifier to cite or link to this item: http://ir.lib.stu.edu.tw:80/ir/handle/310903100/1221

Title: 2.4GHz及5.8GHz之雙頻雙面反向線性漸窄式開槽天線設計
2.4GHz and 5.8GHz Dual Frequency Antipodal Linearly-Tapered Planner Slot Antenna Design
Authors: 劉子健
Tzu-Chien Liu
Contributors: Wen-Tzu Chen;Yih-Chuan Lin
電腦與通訊研究所
Keywords: 漸窄式開槽天線;反向線性漸窄式開槽天線;三維有限元素法;雙頻天線;無線通訊;端射
Tapered Slot Antenna (TSA);Antipodal Linearly-Tapered Slot Antenna (ALTSA);3-D Finite-Element Method (FEM);High;Frequency Structure Simulator(HFSS);IEEE802.11a;IEEE802.11b
Date: 2003
Issue Date: 2011-05-24 14:36:19 (UTC+8)
Publisher: 高雄市:[樹德科技大學電腦與通訊研究所]
Abstract: 本論文研製2.4GHz及5.8GHz頻段雙頻平面型反向線性漸窄式開槽天線(ALTSA),包括以2.4GHz為主及以5.8GHz為主的兩款天線。ALTSA天線製作在FR-4基板上。在電磁模擬方面,採用三維有限元素法(3-D FEM)的HFSS。就2.4GHz為主的ALTSA而言,HFSS的模擬與實際製作量測在電壓駐波比(約1.1)與天線增益(約6dBi);而5.8GHz為主的ALTSA天線,其電壓駐波比(約1.15)與天線增益(約10dBi)。而在兩極天線中間的基板採用空氣當作介質可以使耗損減少許多,使增益提高。在論文中,兩片ALTSA在2.4GHz頻段的增益只有約6dBi,可能與基板的耗損及較高的旁波束(sidelobe)有關,這方面可以在繼續研究。本論文中所設計的ALTSA屬於指向性強的端射(endfire)天線,可以應用在2.4GHz以及5.8GHz頻段的通訊系統,如IEEE802.11b、IEEE802.11g及IEEE802.11a等系統。
This thesis presented the design of planar antipodal linearly-tapered slot antennas (ALTSAs), which operated at dual frequency band of 2.4GHz and 5.8GHz. These printed ALTSAs have been implemented by using the FR-4 PCB substrate. For electromagnetic simulation, we selected HFSS that using three-dimensional (3-D) finite element method (FEM). For 2.4GHz band, good consistency between simulation and measurement on VSWR (about 1.1) and antenna directivity (about 6dBi) are achieved in the range of 2.4 - 2.4835 GHz. For 5.8GHz band, good consistency between simulation and measurement on VSWR (about 1.15) and antenna directivity (about 10dBi) are also achieved in the range of 5.75~5.85GHz. The substrate between the two arms of the ALTSA is employed by air to reduce the antenna loss. The antenna directivity at 2.4GHz only has 6dBi. This could depend on substrate loss and high sidelobe. Further study is needed for improvement. In this thesis, the ALTSAs are directional antennas, which apply for 2.4GHz and 5.8GHz communication system, such as IEEE802.11b, IEEE802.11g, IEEE802.11a system.
Appears in Collections:[電腦與通訊系(所)] 博碩士論文

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