Title :
Coplanar waveguide-fed dual exponentially tapered slot antennas for ultra-wideband applications
Author :
Lin, Yo-Shen ; Ma, Tzyh-Ghuang ; Jeng, Shyh-Kang ; Chen, Chun Hsiung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A uniplanar coplanar waveguide-fed dual exponentially tapered slot antenna is proposed, using a lumped-element impedance-transforming coplanar waveguide-to-slotline transition as the antenna feeding structure. The proposed antenna features a compact size, wide impedance bandwidth, and consistent radiation patterns over the low-band of the ultra-wideband (UWB) spectrum. The characteristics of the proposed antenna, in both the frequency and time domains, are carefully investigated. It is demonstrated that minimum distortion to the UWB input pulse can be expected.
Keywords :
antenna feeds; antenna radiation patterns; broadband antennas; coplanar waveguides; electric impedance; slot antennas; waveguide transitions; antenna feed; compact antenna; coplanar waveguide-feed; coplanar waveguide-to-slotline transition; dual slot antennas; exponentially tapered slot antennas; frequency domain; impedance bandwidth; lumped-element impedance-transforming transition; pulse distortion; radiation patterns; time domain; ultra-wideband applications; uniplanar antenna; Bandwidth; Circuits; Coplanar waveguides; FCC; Frequency; Impedance; Inductors; Slot antennas; Ultra wideband antennas; Ultra wideband technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331997
