An Asymmetric Triangular Monopole Antenna With a Slot for Laptop Applications

• Main Authors: Chia-hung Liu, 劉佳泓
• Other Authors: Ching-Wen Hsue
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/86682034680419247564

碩士 === 國立臺灣科技大學 === 電子工程系 === 95 === A novel multi-band asymmetric triangular monopole antenna (ATMA) with a slot for Laptop applications is explored. The antenna consists of a driven triangular monopole and slot strips. The asymmetric triangular patch is folded to reduce the size of the antenna, and a cut was employed to increase the bandwidth of the lower operating band and to improve impedance matching of upper operating band. The proposed antenna operates effectively in the CDMA (824-894 MHz), GSM (880-960 MHz), DCS (1710-1880 MHz), PCS (1850-1990 MHz) and WCDMA (1920-2170 MHz) within VSWR of 2.5:1. Detail criteria with respect to geometrical parameter variation are given to expedite design process.