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Title:
SELF-ADJUSTING ELECTROMAGNETIC COUPLER WITH AUTOMATIC FREQUENCY DETECTION
Document Type and Number:
WIPO Patent Application WO/2017/196652
Kind Code:
A3
Abstract:
Electromagnetic coupler systems including built-in frequency detection, and modules and devices including such. One example of an electromagnetic coupler system include an electromagnetic coupler having an input port, an output port, a coupled port, and an isolation port, the electromagnetic coupler including a main line extending between the input port and the output port, and a coupled line extending between the coupled port and the isolation port, the electromagnetic coupler being configured to produce a coupled signal at the coupled port responsive to receiving an input signal at the input port. An adjustable termination impedance is connected to the isolation port. A frequency detector is connected to the adjustable termination impedance and to the coupled port, and configured to detect a frequency of the coupled signal and provide an impedance control signal to tune the adjustable termination impedance based on the frequency of the coupled signal.

Inventors:
SRIRATTANA, Nuttapong (20 Sylvan Road, Woburn, MA, 01801, US)
WHITEFIELD, David, Scott (20 Sylvan Road, Woburn, MA, 01801, US)
STORY, David, Ryan (20 Sylvan Road, Woburn, MA, 01801, US)
Application Number:
US2017/031219
Publication Date:
July 26, 2018
Filing Date:
May 05, 2017
Export Citation:
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Assignee:
SKYWORKS SOLUTIONS, INC. (20 Sylvan Road, Woburn, MA, 01801, US)
International Classes:
H01P5/16; H01P3/08; H03H7/01
Foreign References:
US20160065167A12016-03-03
US20120062333A12012-03-15
US20150091668A12015-04-02
US20160079650A12016-03-17
US20160028147A12016-01-28
KR20120007790A2012-01-25
Attorney, Agent or Firm:
GATES, Sarah, M. (Lando & Anastasi, LLPRiverfront Office Park,One Main Street, Suite 110, Cambridge MA, 02142, US)
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