Design of LTE Ground Radiation Antenna Mounted on Metal Casing of Laptop Computer

• Main Authors: Wei Hao-Che, 魏皓哲
• Other Authors: Chen Hua-Ming
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/86917810680609710434

碩士 === 國立高雄應用科技大學 === 光電與通訊工程研究所 === 103 === This thesis provides an in-depth design of LTE ground radiation antenna mounted on metal casing of laptop computer. The three proposed antennas are designed based on the ground radiation antenna;The first antenna uses an open slot fed mechanism to excite the current from the metal ground, with a bandwidth of 40 % at LTE 700~960 MHz. This antenna will not be connecting to the system ground, and it can be used on the top of the panel and hinge. The second antenna is an open slot fed mechanism on the metal back cover.The surrounding current of the slot couples to the current on the cover to emit radiation.The experimental evaluation we applied have illustrated that the frequency operates at LTE 700~960 MHz with efficiency reaching 40 %. Finally, we add the technology of MIMO. The last antenna uses a monopole to produce a high frequency, and couples to an open slot on the metal back cover.The open slot and the current of the metal back cover provide a low frequency at LTE 700~960 MHz and LTE 2300~2700 MHz. The efficiency has reached over 35 % after the experimental evaluation.