Flexible electromagnetic wave-absorption sheet for complex communication antenna and Receiving module for wireless charger by magnetic induction

• Main Authors: SHIN, WOON SEO, CHEON, HAN JIN, JUNG, CHUL HWA, KIM, JAE YOUNG, LEE, SANG WON, KIM, YONG WOO
• Format: Patent
• Language: English; Korean
• Published: 08.05.2018
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PRINTED CIRCUITS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present invention relates to a flexible electromagnetic wave absorption sheet for a complex communication antenna and a receiving module for magnetic induction-based wireless charging including the same. In particular, the present invention relates to a flexible electromagnetic wave absorption sheet for a complex communication antenna, which improves the intensity of each frequency of a multi-communication antenna having two or more kinds of signals for each communication frequency, such as wireless power charging (WPC), near field communication (NFC), Wi-Fi, PMA, 2G, 3G, LTE, etc., while being thinned compared to a conventional electromagnetic absorption sheet, and is applied to a receiving module for magnetic induction-based wireless charging to enhance charging efficiency; and a receiving module for magnetic induction-based wireless charging including the same. Here, the flexible electromagnetic wave absorption sheet comprises first and second electromagnetic wave absorption layers. The receiving module is suitable for application to a flexible small electronic device such as a smartphone, a phablet, a tablet, a smart watch, smart clothes, etc. 본 발명은 복합통신안테나용 플렉서블 전자파 흡수시트, 이를 포함하는 자기유도방식 무선충전용 수신모듈에 관한 것으로서, 좀 더 구체적으로 설명하면, 기존 전자파 흡수시트 보다 박편화 되어 있으면서도 WPC, NFC, MST, Wi-Fi, PMA, 2G, 3G, LTE 등 통신 주파수별 신호 2종 이상을 갖는 다중 통신안테나의 각 주파수별 강도를 개선하면서도, 자기유도방식 무선충전의 수신모듈에 적용하여 충전 효율을 증대시킬 수 있는 플렉서블 전자파 흡수시트, 이를 이를 포함하는 자기유도방식 무선충전용 수신모듈에 관한 것이며, 상기 수신모듈은 플렉서블 소형 전자기기(스마트폰, 패블릿, 태블릿, 스마트워치, 스마트 의류 등)에 적용하기에 적합한 발명에 관한 것이다.