Title :
Wideband Compact 4-Port Dual Polarized Self-Grounded Bowtie Antenna
Author :
Raza, Haider ; Hussain, Amir ; Jian Yang ; Kildal, Per-Simon
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
We present a dual-polarized self-grounded bowtie antenna. The antenna is mechanically simple and wideband. One of the characteristics is its flexibility: it can be used either as a 4-port antenna in multiple-input-multiple-output (MIMO) systems or as a directional 2-port dual-polarized antenna in radar or sensor systems. The latter application requires a balun. The 4-petal geometry of the antenna has been optimized for the best matching to 50 Ω coax over 1.5-3 GHz. Both simulated and measured results are presented to verify the design. The antenna radiates over parts of the bandwidth similar to four Huygens source, one from each petal, each having directivity close to 4.8 dBi.
Keywords :
UHF antennas; antenna radiation patterns; baluns; broadband antennas; electromagnetic wave polarisation; microwave antennas; 4-petal geometry; Huygens source; MIMO system; antenna radiation pattern; balun; directional 2-port dual-polarized antenna; frequency 1.5 GHz to 3 GHz; multiple-input-multiple-output system; radar antenna; resistance 50 ohm; sensor system; wideband compact 4-port dual polarized self-grounded bowtie antenna; Antenna measurements; Directive antennas; Feeds; Frequency measurement; Geometry; Ports (Computers); Multiple-input–multiple-output (MIMO) antenna; self-grounded bowtie antenna; self-grounded monopole; ultra-wideband;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2333062