CPC A61B 5/0205 (2013.01) [A61B 5/02108 (2013.01); A61B 5/05 (2013.01); A61B 5/14532 (2013.01); A61B 5/681 (2013.01); H01Q 1/273 (2013.01); H01Q 5/307 (2015.01); H01Q 21/061 (2013.01); A61B 2560/0209 (2013.01); A61B 2560/0214 (2013.01)] | 36 Claims |
1. A system for monitoring a physiological parameter in a person, the system comprising:
a frequency synthesizer configured to generate radio waves across a range of radio frequencies;
at least one transmit antenna configured to transmit the radio waves below the skin surface of a person;
a two-dimensional array of receive antennas configured to receive radio waves, the received radio waves including a reflected portion of the transmitted radio waves; and
processing circuits configured to generate data in response to the received radio waves and to coherently combine the generated data across the two-dimensional array of receive antennas and across the range of radio frequencies to produce a pulse wave signal of the person;
wherein coherently combining the generated data across the two-dimensional array of receive antennas and across the range of radio frequencies includes comparing the pulse wave signal to a periodic signal model.
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