The Development of High-Directivity Microstrip Array Antenna for WLAN

• Main Authors: Zheng-Da Chen, 陳政達
• Other Authors: 許崇宜
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/81544149678118007853

碩士 === 大葉大學 === 電信工程學系碩士班 === 92 === In this thesis, microstrip array antennas applicable in IEEE802.11a wireless local area network are designed. These antennas must meet the specifications of input return loss greater than 10 dB and gain greater than 10 dBi. Both parallel-fed and series-fed array antennas are implemented. In each of these two types of array antennas, all radiating elements should be excited by signals with identical magnitude and phase so that the main lobe points toward the broadside direction. The series-fed network is much more difficult to design than the parallel-fed network. Measured results indicate that the series-fed array antenna has a larger impedance bandwidth, but a lower directivity.