The Study of Multi-Band Mobile Phone Antenna

• Main Authors: CHEN, CHIEN-HUNG, 陳建宏
• Other Authors: FAN, CHUN-CHIEH
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/79960366571355792804

碩士 === 聖約翰科技大學 === 電子工程系碩士班 === 99 === The architecture of this paper is based on PIFA (Planar Inverted-F Antenna) and uses simple geometric graphic to generate multi-frequency effect. Due to the close relationship between antenna length and wavelength, it is possible to calculate the frequency corresponding to the various wavelengths using the transmission line theorem and antenna miniaturization technique. The Ansoft HFSS simulator later processes variable simulation and generates product by FR4 board. Two PIFA antenna patterns are accomplished in this paper. The first pattern has two frequency band widths which cover the 824-960MHz and 1710-2700MHz range. This covers the frequencies used by common mobile devices including GSM800, EGSM900, DCS1800, PCS1900, UMTS2000. In addition, the first pattern includes the WIMAX system. The second pattern has two frequency band widths which cover the 690-960MHz and 1710-2700MHz. The second pattern has all the systems from the first pattern and in addition includes the LTE system. The measurement results appear compatible with mobile device frequency bands so this antenna design and simulation results can act as a good reference for industrial and academic purposes. to benefit RFID industry in Taiwan.