Summary
International Symposium on Antennas and Propagation
2006
Session Number:1B2a
Session:
Number:1B2a-2
UWB Antenna Array for Grating Lobe Reduction
Dau-Chyrh Chang, Ji-Chyun Liu, Kai-Yuen Cheng, Bing-Hao Zeng,
pp.1-5
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
Traditional antenna array will have grating lobes if the antenna element spacing is not special arrangement. The problems of grating lobes will occur in antenna array if operating frequency is higher. In this paper, a uniformly spaced linear antenna array which composes of UWB CPWFed Bow-tie slot antennas, UWB cable line and UWB BFN (beam forming network) is studied. Test results in frequency domain, grating lobes for the radiation pattern are occurred. By using the Fourier transformation from frequency domain to time domain, the grating lobes are significantly reduced. The wider the frequency bandwidth, the lower the grating lobes in radiation pattern will be happened. The test results are agreed with that of simulation.