Dual antiphase antenna for better signal transmission into human body or signal reception from human body
AssigneeNeva Electromagnetics, LLC
InventorsSergey N Makarov, Gregory M Noetscher, Viktor Makarov, Ara Nazarian
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Abstract
The present invention relates to a new on-body dual antiphase antenna design and a plurality of its modifications to better transmit a radio frequency signal into human or animal body, or receive a radio frequency signal from human or animal body. The antiphase transmission and/or reception is achieved by connecting each individual patch antenna to a 180 degrees microwave power splitter or to a 180 degrees microwave power combiner.
Claims10
A dual antiphase antenna for radiofrequency signal transmission to a mammalian body or reception from a mammalian body comprising;
- at least two closely spaced identical antenna elements directly coupled to the body wherein an antenna element separation distance is on the order of one tenth of the wavelength and wherein the at least two closely spaced identical antenna elements are driven in antiphase with 180° phase shift,
- at least one of the two dual antiphase antenna is coupled to the body and connected to a transmitter,
- at least one of the two dual antiphase antenna is coupled to the body and connected to a receiver, and
- at least one pressure sensor is attached to the body.
A dual antiphase antenna for radiofrequency signal transmission to a mammalian body or reception from a mammalian body comprising:
- at least two closely spaced identical antenna elements directly coupled to the body, wherein an antenna element separation distance is on the order of one tenth of the wavelength and wherein the at least two closely spaced identical antenna elements are driven in antiphase with 180° phase shift, and
- each antenna element further comprises a lumped antenna-matched network.
A dual antiphase antenna for radiofrequency signal transmission to a mammalian body or reception from a mammalian body comprising:
- at least two closely spaced identical antenna elements directly coupled to the body, wherein an antenna element separation distance is on the order of one tenth of the wavelength and wherein the at least two closely spaced identical antenna elements are driven in antiphase with 180° phase shift, and
- each identical antenna element further comprises:
- a patch antenna, wherein the patch antenna comprises a dielectric substrate comprising a first side and a second side and the first side comprises at least two surface patches and the second side comprises a ground plane, with a patch directly coupled to the body,
- each of at least two surface patches further comprises an opposite edge, a near edge and a probe feed for the patch antenna located on the opposite edges of the at least two patches, and
- the probe feeds of the at least two surface patches are placed in echelon similar to a standard patch array design.
Dependencies are inferred from the claim text.