Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2006-01-31
2008-08-05
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S872000, C343S793000
Reexamination Certificate
active
07408511
ABSTRACT:
The present invention provides a MIMO antenna structure and design. A single dipole antenna stands at the center of a triangle which is formed by three PIFAs antennas, and the three PIFA antennas has equal squint angle relative to the neighbors, that is there is 120° sector angle between any two PIFA axes of three such that the dipole and the other PIFAs forms a tetrahedron. The MIMO antenna structure of the present invention is simpler in mechanics but high efficiency in performance.
REFERENCES:
patent: 6426723 (2002-07-01), Smith et al.
patent: 7119744 (2006-10-01), Theobold et al.
patent: 2003/0134596 (2003-07-01), Zhu
Accton Technology Corporation
Birch & Stewart Kolasch & Birch, LLP
Chen Shih-Chao
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