Title :
A multi-band internal antenna for all commercial mobile communication bands and 802.11a/b/g/n WLAN
Author :
Kim, Minho ; Lee, Woosung ; Kim, Woojoong ; Yoon, Young Joong
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
An internal antenna for mobile phones with small volume is proposed. The proposed antenna is based on a planar inverted F-antenna (PIFA) with a coupled feeding structure. The proposed antenna realized on a printed circuit board to reduce fabrication costs. The coupled feeding structure helps the antenna have broadband characteristic which includes all commercial service bands, GSM850/GSM900/GPS/GSM1800/GSM1900/WCDMA2100/802.11b/g/LTE2600 (824-2690 MHz) as well as 802.11a/n (5150-5825 MHz). The antenna gain is in the range of -0.1-3.5 dBi over 824-2690 MHz and 2.3-2.8 dBi over 5150-5825 MHz. And the antenna efficiency is in the range of 615150-93 % over 8245150-2690 MHz and 695150-81 % over 51505150-5825 MHz. In addition, the effect of SAM head phantom is tested using a simulation. As a result, it was verified that the performance does not change significantly. The total size including system circuit area and no-ground area is 100 5150× 40 × 0.8 mm3. The SAR results for the proposed antenna are presented as proper values. As a result, the designed antenna is suitable for small mobile devices and slim wireless applications.
Keywords :
antenna feeds; microwave antenna arrays; mobile antennas; mobile handsets; planar inverted-F antennas; printed circuits; 802.11a-b-g-n WLAN; PIFA; SAM head phantom; SAR; antenna efficiency; antenna gain; commercial mobile communication bands; commercial service bands; coupled feeding structure; efficiency 61 percent to 93 percent; fabrication cost reduction; frequency 5150 MHz to 5825 MHz; frequency 824 MHz to 2690 MHz; internal antenna; mobile devices; mobile phones; multiband internal antenna; planar inverted F-antenna; printed circuit board; Antenna measurements; Antenna radiation patterns; Broadband antennas; Mobile antennas; Mobile communication; Mobile handsets; broadband; coupled feeding; internal antenna; mobile antenna; small antenna;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5