US 12,424,761 B2
Antenna apparatus
Shih-Kai Lin, Taipei (TW)
Assigned to RichWave Technology Corp., Taipei (TW)
Filed by RichWave Technology Corp., Taipei (TW)
Filed on Jul. 17, 2023, as Appl. No. 18/353,125.
Application 18/353,125 is a continuation in part of application No. 17/565,457, filed on Dec. 30, 2021, granted, now 11,764,477.
Claims priority of application No. 110148774 (TW), filed on Dec. 24, 2021; and application No. 112118884 (TW), filed on May 22, 2023.
Prior Publication US 2023/0369772 A1, Nov. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01Q 13/18 (2006.01); H01Q 9/04 (2006.01)
CPC H01Q 13/18 (2013.01) [H01Q 9/0457 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An antenna apparatus, comprising:
a cavity element, comprising an opening;
a radiating element, located within the opening and disposed at a first conductive layer, and an outline of the radiating element and the opening forming a surrounding slot, wherein an external outline of the surrounding slot is configured to define an imagining rectangle, and the imagining rectangle has four sides respectively abutting against the external outline of the surrounding slot; and
a feeding element, disposed at the first conductive layer and comprising:
a first section, located within the opening, wherein a coupling distance is provided between the first section and the radiating element, and a tail end of the first section is an open circuit; and
a second section, located within the opening, wherein a shift distance is provided between the second section and a first central line of the imagining rectangle.