A Broadband Meander Line Monopole Antenna with Vertical Lines

摘要

A meander line monopole antenna with vertical lines is presented for broadband operation. The impedance and radiation characteristics of the antenna are investigated. For the proposed antenna, a bandwidth of approximately 38 percent, which covers the DCS (1.71 to 1.88 GHz), PCS (1.85 to 1.99 GHz), UMTS (1.92 to 2.17 GHz), WiBro (2.3 to 2.4 GHz) and WLAN (2.45 to 2.485 GHz) bands with S_(11) less than -10 dB, is achieved. Omni-directional radiation patterns are obtained for the frequencies across the operating bands and the peak antenna gain is approximately 2.8 dBi. Experimental results from the constructed prototype are presented and discussed. The electrical characteristics of the proposed antenna make it attractive for mobile terminals and repeater applications.