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
โฆ LIBER โฆ
A folded and bent internal loop antenna for GSM/DCS/PCS operation of mobile handset applications
โ 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
No coin nor oath required. For personal study only.
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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