Title :
Miniature multiband monopole antenna for WWAN operation in laptop computer
Author :
Liu, Han-Wen ; Yang, Chang-Fa
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
A novel miniature planar monopole antenna with multiband operation for penta-band wireless wide area network (WWAN) applications is presented. The antenna fabricated on a ceramic substrate consists of a tuning strip and two distinct pairs of driven and coupled strips, and occupies a compact size of only 83(L)??6(W)??0.8(H)??mm3 to be easily embedded inside the laptop computer as an internal antenna. By properly designing the antenna operated as a shorted monopole, two wide bands at about 820-985 and 1700-2180-MHz suitable for GSM850/900 and DCS/PCS/UMTS operations can be achieved. Omnidirectional radiation patterns with appreciable gain over the penta-band are obtained so that the proposed antenna is well suited to be embedded inside the laptop computer for WWAN applications.
Keywords :
UHF antennas; antenna radiation patterns; laptop computers; monopole antennas; multifrequency antennas; planar antennas; wide area networks; DCS; GSM850; GSM900; PCS; UHF antennas; UMTS; frequency 1700 GHz to 2180 GHz; frequency 820 MHz to 985 MHz; internal antenna; laptop computer; multiband planar monopole antenna; omnidirectional radiation patterns; tuning strip; wireless wide area network;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3254
