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公开(公告)号：US10014897B2
公开(公告)日：2018-07-03
申请号：US14930717
申请日：2015-11-03
CPC分类号： H04B1/3838 , H04B17/101 , H04B17/102 , H04B17/103 , H04W52/367 , H04W52/38 , H04W88/02
摘要： A method, communication device, and computer program product mitigate Specific Absorption Rating (SAR) exposure to a user proximate to a communication device. The method includes an on-device measurement receiver of a communication device detecting a first signal level corresponding to power delivered to a first antenna. The method includes a controller determining a first return loss value based on a first transmit power setting and the first signal level. The method includes the controller determining whether the first return loss value differs from a baseline value by a threshold amount. In response to the controller determining that the first return loss value differs by the threshold amount, the controller causes the communication device to reduce the power delivered to the first antenna.
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公开(公告)号：US10193522B2
公开(公告)日：2019-01-29
申请号：US15002590
申请日：2016-01-21
发明人： Gregory R Black , Brian H Bremer
摘要： The present application provides a single port wide band impedance matching circuit and method for providing antenna matching. The single port wide band impedance matching circuit includes a single signal port adapted for receiving a wide band signal. The single port wide band impedance matching circuit further includes an impedance matching circuit including a narrow band harmonic bypass. Still further, the single port wide band impedance matching circuit includes an antenna port coupled to the single signal port via the impedance matching circuit.
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公开(公告)号：US09935660B2
公开(公告)日：2018-04-03
申请号：US15049193
申请日：2016-02-22
CPC分类号： H04B1/0057 , H04L5/001
摘要： The present application provides a multiplex antenna matching circuit and method for coupling multiple signal ports to an antenna via cascaded diplexers. The multiplex antenna includes a diplexer for coupling a single merged port associated with an antenna with two separated signal nodes. The multiplex antenna further including at least one cascaded sub-diplexer. Each cascaded sub-diplexer is associated with a respective one of the two separated signal nodes, where the cascaded sub-diplexer further couples the respective one of the two separated signal nodes with a respective two further separated signal ports.
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