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Miniature multiband monopole antenna for WWAN operation in laptop computer

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2 Author(s)
Liu, H.-W. ; Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan ; Yang, C.-F.

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.

Published in:
Electronics Letters  (Volume:46 ,  Issue: 1 )

Date of Publication: January 7 2010

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