Loop Antenna

摘要

A loop antenna is provided, which includes a first loop section, a second loop section and a third loop section. The first loop section surrounds and defines an empty area. The second loop section surrounds and connects the first loop section, and an annular groove is formed between the first loop section and the second loop section. The third loop section surrounds and connects the second loop section. The width of a gap between the third loop section and the second loop section is smaller than the width of the annular groove.

主权项

1. A loop antenna, comprising:
a first loop section, comprising a first end and a second end, wherein the first loop section surrounds and defines an empty area; a second loop section, comprising a third end and a fourth end, the third end is connected to the second end, wherein the second loop section surrounds the first loop section, an annular groove is formed between the first loop section and the second loop section, and a width of the annular groove is between 1 mm and 10 mm; and a third loop section, comprising a fifth end and a sixth end, the fifth end connected to the fourth end, wherein the third loop section surrounds the second loop section, and a width of a gap between the third loop section and the second loop section is smaller than the width of the annular groove.