US 11,677,151 B2
Near-field communications device
Anthony Kerselaers, Herselt (BE); and Liesbeth Gommé, Anderlecht (BE)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on Sep. 11, 2020, as Appl. No. 17/17,731.
Prior Publication US 2022/0085504 A1, Mar. 17, 2022
Int. Cl. H01Q 7/00 (2006.01); H01Q 7/08 (2006.01); H04B 5/00 (2006.01)
CPC H01Q 7/005 (2013.01) [H01Q 7/08 (2013.01); H04B 5/0031 (2013.01); H04B 5/0037 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A physical structure for a near-field device, comprising:
a near-field magnetic antenna, including a coil, configured to receive or transmit near-field magnetic signals;
a near-field electric antenna, including a conductive surface, configured to receive or transmit near-field electric signals; and
a set of electrical components, including a tuning circuit, electrically coupled to the coil in the near-field magnetic antenna and to the conductive surface in the near-field electric antenna;
wherein at least one of: the coil of the near-field magnetic antenna, or the conductive surface of the near-field electric antenna, completely encircle the set of electrical components;
wherein the electrical components form a plane along a Z-axis of the device;
wherein the conductive surface of the near-field electric antenna is a first conductive surface;
further comprising a second conductive surface included in the near-field electric antenna;
wherein the first conductive surface forms a plane higher than the electrical components along the Z-axis; and
wherein the second conductive surface forms a plane lower than the electrical components along the Z-axis;
further comprising a via;
wherein the via is completely encircled by the antennas;
wherein the electrical components are physically supported by a rigid substrate and the near-field magnetic and electric antennas are physically coupled to a flexible material;
further comprising a voltage boost coil electrically coupled to the near-field electric antenna and configured to boost a voltage from the electrical components sent to the near-field electric antenna in a transmit mode; and
wherein the voltage boost coil is electrically coupled to both the near-field electric antenna and the near-field magnetic antenna at a near-field antenna signal feeding connection.