Author_Institution :
Network Res. Lab., Sony Ericsson Mobile Commun. AB, Lund, Sweden
Abstract :
The mobile industry has experienced a dramatic growth; it evolves from analog to digital 2G (GSM), then to high date rate cellular wireless communication such as 3G (WCDMA), and further to packet optimized 3.5G (HSPA) and 4G (LTE and LTE advanced) systems. Today, the main design challenges of mobile phone antenna are the requirements of small size, built-in structure, and multisystems in multibands, including all cellular 2G, 3G, 4G, and other noncellular radio-frequency (RF) bands, and moreover the need for a nice appearance and meeting all standards and requirements such as specific absorption rates (SARs), hearing aid compatibility (HAC), and over the air (OTA). This paper gives an overview of some important antenna designs and progress in mobile phones in the last 15 years, and presents the recent development on new antenna technology for LTE and compact multiple-input-multiple-output (MIMO) terminals.
Keywords :
MIMO communication; cellular radio; mobile antennas; GSM; HAC; HSPA; LTE systems; MIMO terminals; OTA; SAR; WCDMA; cellular phones; hearing aid compatibility; high-date rate cellular wireless communication; mobile communications; mobile industry; mobile phone antenna; multiple-input-multiple-output terminals; noncellular RF bands; noncellular radiofrequency bands; over the air; specific absorption rates; Bandwidth allocation; Dipole antennas; MIMO; Mobile antennas; Mobile communication; Mobile handsets; Synthetic aperture radar; Body effect; HAC; LTE antenna; MIMO antenna; SAR; integrated antenna; mobile terminal antenna; multiband small antenna; over-the-air (OTA) performance;
