US 12,395,943 B2
Antenna self-capacitance change detection method and apparatus, and related applications
Songrong Bai, Shenzhen (CN); Shuo Fan, Shenzhen (CN); and Jie Wang, Shenzhen (CN)
Assigned to Shenzhen CVA Innovation Co., Ltd, Shenzhen (CN)
Filed by Shenzhen CVA Innovation Co., Ltd, Shenzhen (CN)
Filed on Apr. 13, 2023, as Appl. No. 18/134,299.
Prior Publication US 2024/0349200 A1, Oct. 17, 2024
Int. Cl. H04W 52/28 (2009.01); G01V 3/08 (2006.01)
CPC H04W 52/283 (2013.01) [G01V 3/088 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna module, comprising:
an antenna configured to generate a self-capacitance change based on an approaching object and a temperature change; and
at least one sensor electrode configured to generate a self-capacitance change based on the temperature change;
wherein the at least one sensor electrode is configured to locate in a region in which the at least one sensor electrode is electromagnetically shielded by the antenna in at least one direction, such that no electromagnetic field is formed between the at least one sensor electrode and the approaching object in the at least one direction when a voltage difference between the antenna and the at least one sensor electrode remains constant.