Antenna for Ultrawideband Channel Sounding

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Abstrakt

A novel compact antenna for ultrawideband channel sounding is presented. The antenna is composed of a symmetrical biconical antenna modified by adding a cylinder and a ring to each cone. A feeding coaxial cable is employed during the simulations in order to evaluate and reduce its impact on the antenna performance. The optimized antenna demonstrates S11 below -10 dB and a stable omnidirectional radiation pattern robust against the cable effect over the frequency band 1.5-41 GHz despite its compactness (the maximum electrical dimension is of 0.29λmax, where max is the free space wavelength at the lowest frequency of operation). A prototype of the antenna is fabricated and tested. The simulated and measured S11 are in a good agreement. Measured radiation patterns confirm the pattern stability in terms of the direction of maximum radiation and 3 dB beamwidth.
OriginalsprogEngelsk
TidsskriftI E E E Antennas and Wireless Propagation Letters
Sider (fra-til)692-695
ISSN1536-1225
DOI
StatusUdgivet - 2016

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