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A folded and bent internal loop antenna for GSM/DCS/PCS operation of mobile handset applications

โœ Scribed by Byung-kil Yu; Byungwoon Jung; Ho-Jun Lee; Frances J. Harackiewicz; Byungje Lee


Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
321 KB
Volume
48
Category
Article
ISSN
0895-2477

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Internal folded loop antenna with tuning
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GHz and almost no changes in the rest of properties such as noise figure, current consumption, input return loss, and output return loss when compared with the 2-m GaInP/GaAs HBT LNA without interstage matching. The bandwidth of a cascode amplifier is usually limited by the output matching bandwidth

Thin internal planar antenna for GSM/DCS
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The proposed internal antenna has a small thickness of only 3 mm, yet it is capable of providing two wide operating bands at about 0.9 and 2 GHz so as to meet the bandwidth requirements of the GSM/DCS/PCS/UMTS systems. Details of the design considerations of the proposed antenna are described, and t