University:
California State University, East Bay
Course:
CS 3590 | Data Communications and Networking
Academic year:

2023
Views:

192

Pages:

1
Author:

Jithin J. I.

CACTUS-SHAPED MIMO ANTENNA Introduction  MIMO antennas needed for high data rate wireless communications  Proposes a dual-band cactus-shaped MIMO antenna for wireless & satellite apps Single Antenna Design  Cactus shape formed by T-shaped radiator and two inverted-F branches.  Operates in 4.9-5.45 GHz and 8.72-11.55 GHz bands.  T-shape radiator induces lower frequency band, F-branches give higher band. MIMO Antenna Geometry  Two cactus antenna elements with 0.12λ edge-to-edge spacing.  Inverted U-shaped decoupling structures on ground plane.  Ladder connection between decoupling structures Results & Discussion  Good impedance matching below -10 dB in both bands.  High isolation of >20 dB between MIMO elements  Stable antenna gains around 3-4 dBi across both bands.  Omnidirectional radiation patterns suitable for wireless communications Conclusion  Compact cactus MIMO antenna covers wireless and satellite bands.  Decoupling structure minimizes mutual coupling for good diversity.  Could enable high data rate multi-band wireless communications.