Title:
ORTHOGONAL MULTI-ANTENNAS FOR MOBILE HANDSETS BASED ON CHARACTERISTIC MODE MANIPULATION
Document Type and Number:
WIPO Patent Application WO/2015/001475
Kind Code:
A2
Abstract:
A novel multi-antenna design approach is proposed to obtain uncorrelated and energy efficient antennas. By manipulating the chassis, more than one characteristic mode is enabled to resonate at frequency below 1 GHz. With proper excitations for different characteristic modes, which are inherently orthogonal to each other, well performed multiple antennas with low mutual coupling and correlation are achieved. Three examples of chassis manipulation, a bezel structure and two T-shaped structures with metal strips along the chassis, are introduced. With efficient excitations of the fundamental dipole mode and T-strip mode, two antennas with low correlations and high total antenna efficiencies are achieved, with both antennas covering one or more of the low frequency LTE bands 5, 6, 8, 12, 13, 14, 17, 18, 19, and 20 in combination with one or more of high frequency LTE bands 1, 2, 3, 4, 9, 10, 11, 15, 16, 21, 23, 24, and 25.
Inventors:
LAU BUON KIONG (SE)
LI HUI (SE)
MIERS ZACHARY (SE)
LI HUI (SE)
MIERS ZACHARY (SE)
Application Number:
PCT/IB2014/062749
Publication Date:
January 08, 2015
Filing Date:
July 01, 2014
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H01Q25/04
Other References:
None
Attorney, Agent or Firm:
KAMEYA, Yoshiaki (Daiichi Tomizawa Building 3-1-3, Yotsuya,Shinjuku-ku, Tokyo 04, JP)
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