Title :
A compact four-port patch antenna for MIMO application
Author :
Ka Ming Mak ; Hau Wah Lai ; Kwai Man Luk ; Chi Hou Chan
Author_Institution :
State Key Lab. of Millimeter Wave (HK), City Univ. of Hong Kong, Hong Kong, China
Abstract :
A directional shorted patch antenna designed for the application of WiFi router with Multiple Input Multiple Output (MIMO) technology is proposed in this paper. By feeding the antenna with vertical probes and proper matching networks, this antenna can be operated in either dual linear or circular polarization modes. When operating at dual polarization mode, the impedance bandwidth is around 6% (S11<;-15dB) for both input ports and the isolation is better than -30dB across the 5.8GHz ISM band. As for the circular polarization mode, the impedance (S11<;-15) and 3-dB axial ratio bandwidth are 12.9% and 9.6% respectively. Symmetric radiation patterns are obtained in horizontal and vertical planes for both modes.
Keywords :
MIMO communication; antenna radiation patterns; directive antennas; electromagnetic wave polarisation; microstrip antennas; telecommunication network routing; wireless LAN; ISM band; MIMO application; Wi-Fi router; axial ratio bandwidth; bandwidth 5.8 GHz; circular polarization mode; compact four-port patch antenna; directional shorted patch antenna; dual polarization mode; linear polarization mode; matching network; multiple input multiple output; symmetric radiation pattern; Antenna measurements; Antenna radiation patterns; Impedance; MIMO; Polarization; Wireless communication; MIMO; antenna; circular polarization; dual polarization; patch;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
