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天線工程期中報告
Design of A UWB Antenna for Wireless USB Dongle
Application
作者：Hsueh-Chuan Tang and Ken-Huang Lin
出處：Department of Electrical Engineering National Sun Yat-Sen University
Kaohsiung, 80424, Taiwan
978-1-4244-2802-1/09 ©2009 IEEE
報告人：
碩研電子一甲 MA130117 陳偉中
Southern Taiwan University
Department of Electronic Engineering
Abstract
• The proposed antenna has bandwidth of 8.41 GHz form 2.74 GHz up to 11.15 GHz with
return loss values below - 10 dB in the whole frequency range.
• The antenna design utilizes symmetrical triangle to achieve broad impedance
bandwidth with good gain performance.
• The antenna fabricated on PCB area of 16 mm ×38 mm × 0.8 mm and small size easily
integrated to RF-circuit.
• The prototype antenna has characteristics of the Omnidirectional radiation pattern,
UWB, simple shape, good gain and low cost.
ANTENNA DESIGN
(a)
(b)
Fig.1 (a) antenna geometry (unit: mm) (b) prototype of proposed UWB
antenna
RESULTS AND DISCUSSIONS
Fig.2 Measured and simulated return loss of the proposed antenna
Fig.3 Group delay of the proposed antenna
Fig.4 Path loss (S21) of the proposed antenna
Fig.5 Measured radiation patterns in the X-Y, XZ, and YZ planes at (a) 4 GHz
(b) 7 GHz (c) 10 GHz
Fig.6 Measured peak gain of the total field.
CONCLUSION
• The antenna design utilizes symmetrical triangle to achieve broad
impedance bandwidth with good gain performance.
• The radiation pattern has been observed that the measured average peak gain
for the total field is greater than 5.28 dB with Omni-directional radiation.
• The characteristics of simple shape and easy to fabrication are suitable for
applications of the antenna in mobile devices.
心得
這篇讓我知道天線設計採用對稱三角形，以實現廣泛的阻抗帶寬，
具有良好的增益性能。此天線設計形狀簡單，容易製作，成本低。
兩個對稱的三角形產生的共振模式，以實現寬帶目的和減小大小，
此天線是規模相對較小，它可以適用於易於集成WUSB。