A Band-pass Shielding Enclosure Design Using UC-PBG Elements for Wireless Communication Devices

• Main Authors: Yu-Fan Kuo, 郭宇帆
• Other Authors: Cheng-Nan Chiu
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/77245436788206542125

碩士 === 大葉大學 === 電信工程學系碩士班 === 95 === This paper proposes a new bandpass shielding enclosure (BPSE) for modern handheld communication devices. This enclosure is characterized by high transmittance at the specified wireless signal band and high shielding effectiveness outside this band. In addition, it has little influence on the impedance-matching bandwidth and antenna patterns of an internal antenna inside this BPSE. A novel bandpass shielding enclosure using uniplanar compact photonic bandgap (UC-PBG) elements is presented. This UC-PBG structure is a two-dimension periodic array structure. This unique structure has several applications for millimeter-wave and microwave integrated circuits, such as filters, microstrip antennas, resonant cavities, etc. This BPSE is designed to shield electromagnetic interference and keep the quality of communicational signals for WLAN and IMT-2000. Because high performance and compact design, this BPSE is very suitable for modern mobile wireless communication devices. The simulated and measured results demonstrate the promising performance of this newly proposed bandpass shielding enclosure.