Title :
Design of a VHF/UHF/L-Band Low-Power Active Antenna for Mobile Handsets
Author :
Cho, Kyeongrae ; Hong, Songcheol
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
fDate :
7/4/1905 12:00:00 AM
Abstract :
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).
Keywords :
UHF antennas; VHF antennas; active antennas; helical antennas; low noise amplifiers; low-power electronics; microwave antennas; mobile handsets; multifrequency antennas; receiving antennas; L-band broadcasting; L-band low-power active antenna; LNA; UHF band low-power active antenna; UHF-band broadcasting; VHF band low-power active antenna; VHF-band broadcasting; design procedure; frequency 1450 MHz to 1492 MHz; frequency 174 MHz to 216 MHz; frequency 470 MHz to 806 MHz; mobile handsets; passive antenna; single passive helical antenna; triple-band low noise amplifier; triple-band receiving active antenna; Antenna measurements; Helical antennas; Impedance; L-band; UHF antennas; UHF measurements; Active antenna; L-band; UHF; VHF; impedance match; low noise amplifier (LNA); multiband antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2011.2181149
