Title:
APPARATUS AND METHOD FOR MATCHING IMPEDANCE
Document Type and Number:
WIPO Patent Application WO/2014/178526
Kind Code:
A1
Abstract:
An apparatus for matching impedance for use in a wireless communication is provided. The apparatus includes a forward path carrying a transmission signal to an antenna. The apparatus further comprises a quadrature feedback path configured to extract and feed back in-phase and quadrature phase components from each of a forward signal being transmitted toward the antenna and a reverse signal reflected from the antenna. A tunable matching network (TMN) is coupled to the forward path, having a plurality of tunable elements for matching an internal impedance to an impedance of the antenna. A controller is configured to calculate TMN input impedance's amplitude and phase based on the in-phase and quadrature phase components from each of the forward signal and the reverse signal.
Inventors:
ZHANG YAMING (US)
LOH LUP MENG (US)
HURLEY WILLIAM (US)
INTERRANTE JOHN ALEX (US)
LOH LUP MENG (US)
HURLEY WILLIAM (US)
INTERRANTE JOHN ALEX (US)
Application Number:
PCT/KR2014/001608
Publication Date:
November 06, 2014
Filing Date:
February 27, 2014
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04L25/03; H04L27/26
Foreign References:
| US20070194859A1 | 2007-08-23 | |||
| US20130021220A1 | 2013-01-24 | |||
| US20120229330A1 | 2012-09-13 | |||
| US20110086600A1 | 2011-04-14 | |||
| CN102769440A | 2012-11-07 |
Attorney, Agent or Firm:
KWON, Hyuk-Rok et al. (Gyeonghuigung-gilJongro-gu, Seoul 110-062, KR)
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