Mutual Coupling Reduction Techniques on a Multiband Compact Planar MIMO Antenna
International Journal for Research in Applied Science and Engineering Technology
In wireless communication era, reduction of total size of devices is a challenge faced. Miniaturization results in placing the antenna elements closely. This in turn results in mutual coupling between the elements of the antenna due to which it suffers from high signal correlation and low antenna efficiency. This paper manifests a comparative study of numerous mutual coupling reduction techniques developed to improve the performance of MIMO antenna. A multiband compact planar MIMO antenna is
... MIMO antenna is designed and Neutralizing Line, Electromagnetic Band Gap, Meander Line and Defected Ground Structure are implemented on the proposed antenna to reduce the mutual coupling and to enhance isolation. The structure consists of two C-shaped monopoles, each operating at 2.4-2.45 GHz and 5.2-5.25 GHz frequency bands. The antenna design is simulated and the performance is measured in terms of S-parameters (return loss i.e. S11 < -10 dB; isolation i.e. S21 < -15 dB) and Voltage Standing Wave Ratio (1 < VSWR < 2) for the propounded mutual coupling reduction technique. MIMO antennas are prevailing in WLAN, Wi-Max, LTE (Long term evolution), and many other RF technologies like portable devices, automotive devices etc. as they are helping in improving the spectral efficiency.