TY - JOUR T1 - Multiband Hybrid Loop/Monopole Slot/Planar Monopole Antenna for Mobile Phone Application TT - JF - ITRC JO - ITRC VL - 2 IS - 1 UR - http://ijict.itrc.ac.ir/article-1-268-en.html Y1 - 2010 SP - 21 EP - 27 KW - mobile phone antennas KW - multiband antennas KW - planar monopole antennas KW - loop-type antennas KW - monopole slot antennas KW - hybrid antennas N2 - In this paper, a novel planar hybrid multiband antenna formed by a loop-type antenna, a monopole slot antenna, and a coupled planar monopole antenna for the mobile phone is proposed. The loop-type antenna comprises a driven monopole and a coupled strip that printed on the other side of the substrate and short-circuited to the ground. The 0.51 and 1.01 mode of the loop-type antenna are excited. Therefor,e, the 0.51 mode of the loop-type antenna forms a wide bandwidth of 326 MHz to cover the GSM850/900 operation and the 0.251 mode of the monopole slot antenna, the 1.01 mode of the loop-type antenna, and the 0.25A mode of the coupled monopole antenna provide a wide bandwidth of 1181 MHz to cover the GPS/DCS/PCS/UMTS/WLAN2.4/WiMAX operation. Finally, the 0.51 mode of the coupled monopole antenna forms a wide bandwidth to cover the WLAN5.2 operation. Moreover, the hybrid antenna occupies a compact area of 16.5 x 45 mm2 and it has good radiation characteristics over the operating bands. M3 ER -