Antenna grounding circuit, antenna structure and wearable device

• Main Author: WANG-HUANG TENGLONG
• Format: Patent
• Language: Chinese; English
• Published: 06.01.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The antenna grounding circuit comprises a connecting end, a grounding end, a first branch and a second branch, the connecting end is used for being connected with a radiator of an antenna, and the grounding end is used for being grounded. The first branch comprises a first metal branch and a second metal branch, the first metal branch is electrically connected with the grounding end, the second metal branch is electrically connected with the grounding end, and at least one part of the first metal branch and at least one part of the second metal branch are oppositely arranged to form a first capacitor. The second branch is connected with the first branch in parallel, and a first inductor is arranged on the second branch. According to the antenna grounding circuit, the grounding effect can be achieved, meanwhile, an equivalent capacitor structure is formed through the first metal branch knot and the second metal branch knot, a fixed capacitor does not need to be installed, the capacitance value can be convenien