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Design of a VHF/UHF/L-Band Low-Power Active Antenna for Mobile Handsets

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2 Author(s)
Kyeongrae Cho ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea ; Songcheol Hong

A small triple-band receiving active antenna for VHF, UHF, and L-band broadcasting that can be used for mobile handsets is presented. This antenna consists of a small single passive helical antenna and a triple-band low noise amplifier (LNA). The design procedure of this antenna, in which the passive antenna shows very different impedances at each band, is also presented. Furthermore, it is demonstrated that the proposed configuration can be used as a triple-band receiving active antenna for VHF (174-216 MHz), UHF (470-806 MHz), and L-band (1450-1492 MHz).

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:11 )