Title :
The double-sided 4-port bow-tie antenna: A new compact wideband MIMO antenna
Author :
Al-Rawi, Ali ; Jian Yang ; Orlenius, Charlie ; Franzen, M.
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
We present a new compact ultra-wideband 4-port antenna for use in MIMO systems, such as in reverberation chambers for OTA measurements. The new antenna is based on the self-grounded bow-tie antenna with a very compact size. The design was done through an optimization by employing the genetic algorithm in order to obtain low reflection coefficient and mutual coupling between ports. The designed antenna has an embedded radiation efficiency higher than -0.35 dB, reflection coefficient below -7 dB, mutual coupling between ports below -12.5 dB (in most frequencies below -20 dB), over a frequency range of 0.4-15 GHz.
Keywords :
MIMO communication; bow-tie antennas; genetic algorithms; microwave antenna arrays; reverberation chambers; ultra wideband antennas; OTA measurements; compact ultra-wideband 4-port antenna; compact wideband MIMO antenna; double-sided 4-port bow-tie antenna; embedded radiation efficiency; frequency 0.4 GHz to 15 GHz; genetic algorithm; loss -0.35 dB; loss -20 dB; loss -7 dB; low reflection coefficient; mutual coupling; reverberation chambers; self-grounded bow-tie antenna; Antenna measurements; Broadband antennas; Frequency measurement; MIMO; Ports (Computers); MIMO antenna; bow-tie antenna; ultra-wideband;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
