Title :
Coplanar waveguide fed ultra-wideband antenna over the planar and cylindrical surfaces
Author :
Lech, Rafal ; Marynowski, Wojciech ; Kusiek, Adam
Author_Institution :
Fac. of Electron., Telecommun. & Inf., Gdansk Univ. of Technol., Gdansk, Poland
Abstract :
The investigation of coplanar waveguide fed ultra-wideband antenna and the influence of the proximity of different materials on the reflection coefficients and radiation characteristics is presented. The antenna is composed of two circular coplanar strips which enclose slot aperture of similar shape and is designed on a thin and flexible substrate. From the modeling and experimental tests the antenna shows good performance in 2-15GHz frequency range with return losses better than 10dB. It is shown that the proximity of different, non-metalic materials does not significantly affect antenna performance. The proximity of metalic screens deteriorates its radiation pattern and reflection coefficient. However with the correct choice of the distance between screen and antenna the required level of return losses can be provided.
Keywords :
antenna feeds; antenna radiation patterns; coplanar waveguides; ultra wideband antennas; antenna radiation pattern; circular coplanar strips; coplanar waveguide fed ultrawideband antenna; cylindrical surfaces; frequency 2 GHz to 15 GHz; metalic screens proximity; planar surfaces; radiation characteristics; reflection coefficients; Antenna measurements; Antenna radiation patterns; Frequency measurement; Materials; Ultra wideband antennas; coplanar waveguide fed (CPW-fed); flexible antenna; ultra-wideband antenna;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6902483
