EMC internal patch antenna integrated with a U-shaped shielding metal case for mobile device application

✍ Scribed by Chih-Ming Su; Kin-Lu Wong; Brian Chen; Sam Yang

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 320 KB
• Volume: 48
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.21552

✦ Synopsis

Abstract

A novel integration design of a shorted patch antenna and a U‐shaped shielding metal case for application in a mobile communication device is presented. The shorted patch antenna is mounted within the dented portion of the U‐shaped shielding metal case, which can provide a coupling‐free space for accommodating electronic components such as the RF modules/circuitry and battery in the mobile device. Thus, in this case, the shorted patch antenna can operate as an internal antenna having an electromagnetic compatibility (EMC) property with nearby electronic components. In addition, with the proposed integration design, the shorted patch antenna is isolated from the two side edges of the system ground plane of the mobile device. Hence, it can be expected that the effects of the user's hand on the performances of the antenna will be suppressed. The proposed integration design applied to a smart phone for Universal Mobile Telecommunications System (UMTS, 1920–2170 MHz) operation is studied. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1157–1161, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21552