US 12,255,699 B2
Compact MI antenna for a hearing instrument and hearing instrument
Peter Nikles, Erlangen (DE); and Johannes Kuhn, Fürth (DE)
Assigned to Sivantos Pte. Ltd., Singapore (SG)
Filed by Sivantos Pte. Ltd., Singapore (SG)
Filed on Dec. 15, 2022, as Appl. No. 18/082,055.
Application 18/082,055 is a continuation of application No. PCT/EP2022/052741, filed on Feb. 4, 2022.
Claims priority of application No. 10 2021 201 095.4 (DE), filed on Feb. 5, 2021; and application No. 10 2021 214 085.8 (DE), filed on Dec. 9, 2021.
Prior Publication US 2023/0124499 A1, Apr. 20, 2023
Int. Cl. H04B 5/26 (2024.01); H01F 27/36 (2006.01); H01Q 1/27 (2006.01); H01Q 7/00 (2006.01); H04R 25/00 (2006.01)
CPC H04B 5/26 (2024.01) [H01F 27/361 (2020.08); H01Q 7/00 (2013.01); H04R 25/554 (2013.01); H01Q 1/273 (2013.01); H04R 2225/51 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A magneto-inductive antenna for a hearing instrument, comprising:
two antenna surfaces, including a first antenna surface and a second antenna surface, being respectively formed from a flexible magnetic foil;
a base formed from a magnetic material or contains a magnetic layer and connecting said two antenna surfaces to one another, said two antenna surfaces being angled off from said base in a same direction; and
an antenna winding having at least one first monolayer spiral coil disposed externally on said first antenna surface so that an axis of said at least one first monolayer spiral coil is oriented perpendicularly with respect to said first antenna surface.