Title :
A Quad-Band Internal Antenna Having Independent Controllability of Low/High Resonant Frequencies
Author :
Lee, Ho-Seon ; Lee, Kyung-Hak ; Han, Min-Seok ; Lee, Jeong-Kwan ; Yoon, Jung-Ho ; Kim, Hong-Teuk
Author_Institution :
RF Group, LG Electron. Inst. of Technol., Seoul
Abstract :
A compact quad-band internal antenna for 3G mobile phone is presented. A novel technique which can control low/high resonant frequencies of the multi-band antenna independently is employed for easy optimization of the antenna characteristics over all frequency bands. The designed single plate antenna consists of a planar antenna with U-shaped slot for high band and a vertically attached spiral monopole antenna for low band and its size is 38.0 times 9.0 times 6.0 mm3 (2.052 cc). The measured bandwidth for S11 less than -6dB covers GSM900 (880-960 MHz), DCS1800 (1710-1880 MHz), DCS1900 (1850-1990 MHz), and UMTS (1920-2170 MHz)
Keywords :
3G mobile communication; cellular radio; mobile antennas; multifrequency antennas; planar inverted-F antennas; 1710 to 1880 MHz; 1850 to 1990 MHz; 1920 to 2170 MHz; 38.0 times 9.0 times 6.0 mm; 3G mobile phone; 880 to 960 MHz; DCS1800; DCS1900; GSM900; U-shaped slot; UMTS; mobile antenna; multiband antenna; planar antenna; planar inverted-f antenna; quad-band internal antenna; resonant frequency control; single plate antenna; spiral monopole antenna; 3G mobile communication; Antenna measurements; Bandwidth; Controllability; Mobile antennas; Mobile handsets; Planar arrays; Resonant frequency; Slot antennas; Spirals; Mobile antenna; Planar inverted-F antenna; Quad-band antennas;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281048
