Autor:	Chen, Chun-Heng, 陳俊亨
Rok vydání:	2008
Druh dokumentu:	學位論文 ; thesis
Popis:	96 According to develop the trends of the mobile system, the antenna designs for broadband operation have been proposed. The principal constructions are the printed plane antennas, the advantages are made easy, low cost, low-profile. Utilizing the multiple current paths or dual current paths in these antennas by 50Ω of the coaxial feed to reach the multi-band. In addition, this notch can alter the electromagnetic coupling effects between the monopole and the ground plane, and improves impedance bandwidth to make the frequency ratio around 2.04:1. To reach GSM/PCS/DCS/UMTS operation band.
Databáze:	Networked Digital Library of Theses & Dissertations
Externí odkaz:	http://ndltd.ncl.edu.tw/handle/71757628474266526782 Zobrazit plný text záznamu