Title :
A Multibeam Antenna Based on Substrate Integrated Waveguide Technology for MIMO Wireless Communications
Author :
Chen, Peng ; Hong, Wei ; Kuai, Zhenqi ; Xu, Junfeng ; Wang, Haiming ; Chen, Jixin ; Tang, Hongjun ; Zhou, Jianyi ; Wu, Ke
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing
fDate :
6/1/2009 12:00:00 AM
Abstract :
A 24-beams slot array antenna, which achieves 360-degrees coverage over azimuth direction, based on substrate integrated waveguide (SIW) technology is designed, fabricated and measured for supporting the concept of triangle cell, beam diversity and multiple input multiple output (MIMO) wireless communications. Constructed by six 4-beams single layer SIW antennas which integrate the 4times8 modified Butler matrix with a low side lobe level (SLL) amplitude distribution, measured SLLs are reduced as low as -14.5 dB for all beams in E-plane. The size of the SIW single layer multibeam antenna is 385 mm times 110 mm including feeding network. The usable bandwidth of the proposed antenna is 3.75% at 16 GHz.
Keywords :
MIMO communication; microwave antenna arrays; multibeam antennas; slot antenna arrays; 24-beams slot array antenna; Butler matrix; MIMO wireless communications; amplitude distribution; frequency 16 GHz; low side lobe level; multibeam antenna; multiple input multiple output wireless communications; substrate integrated waveguide technology; Antenna arrays; Antenna feeds; Antenna measurements; Azimuth; Bandwidth; Butler matrix; Directive antennas; MIMO; Slot antennas; Wireless communication; Beam-forming; Butler matrix; substrate integrated waveguide (SIW);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2009.2019868
