15-07-2021 дата публикации
Номер: US20210218400A1
Принадлежит:
A communication device with an RF (Radio Frequency) node and a detection node includes a first radiation element, a second radiation element, a first inductor, a second inductor, a third inductor, a first capacitor, and a second capacitor. The first radiation element is coupled to a first node. The second radiation element is coupled to a second node. The first inductor is coupled between the RF node and the ground voltage. The first capacitor is coupled between the RF node and the first node. The second inductor is coupled between the first node and the second node. The second capacitor is coupled between the second node and the ground voltage. The third inductor is coupled between the detection node and the second node. An antenna structure and a sensing pad are formed by the first radiation element and the second radiation element. 1. A communication device with an RF (Radio Frequency) node and a detection node , comprising:a first radiation element, coupled to a first node;a second radiation element, coupled to a second node;a first inductor, coupled between the RF node and a ground voltage;a first capacitor, coupled between the RF node and the first node;a second inductor, coupled between the first node and the second node;a second capacitor, coupled between the second node and the ground voltage; anda third inductor, coupled between the detection node and the second node;wherein an antenna structure and a sensing pad are formed by the first radiation element and the second radiation element.2. The communication device as claimed in claim 1 , wherein the second radiation element is adjacent to and separate from the first radiation element claim 1 , such that the antenna structure is classified as a coupled-fed antenna structure.3. The communication device as claimed in claim 1 , wherein the first radiation element is a meandering structure.4. The communication device as claimed in claim 1 , wherein the second radiation element is a bifurcation structure.5. The ...
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