Patent ID: 11955735
Assignee: ANHUI UNIVERSITY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A four-notch flexible wearable ultra-wideband antenna fed by coplanar waveguide, comprising: a flexible base, wherein
a lower part of the upper surface of the flexible base is covered with a ground plane, and an upper part of the upper surface of the flexible base is covered with a radiation patch; a feeder slot is opened in a middle of the ground plane; a feeder comprises a main feeder located in the middle and two branch feeders formed by branching to both sides of the main feeder at a branch point located in the upper part of the main feeder; the feeder is attached to the upper surface of the flexible base; lower and middle parts of the main feeder are located in the feeder slot, and there is a gap between each side of the feeder slot and the ground plane, and the upper part of the main feeder protrudes out of the feeder slot;
a top of the main feeder is connected to a bottom of the radiation patch as a whole; tops of the two branch feeders are connected to the radiation patch as a whole through a feeder connection provided on both sides of the bottom of the radiation patch; a vertical length of the main feeder from the branch point to the top of the main feeder is equal to a vertical length of the branch feeder; a notch is on a top of the ground plane, which corresponds to a position and a shape of the branch feeder;
several resonant tanks are on the feeder and the radiation patch, and a number of the resonant tanks corresponds to a number of stop-band characteristics that the antenna needs to achieve; the flexible base is made of insulating flexible material, and the feeder, the radiation patch and the ground plane are made of conductive flexible material;
wherein the radiation patch is hexagonal, and a triangular patch opening is opened downward at a horizontally arranged top edge position of the hexagon; the feeder connection is correspondingly set as a right triangle.