Abstract:
PURPOSE: A wireless energy transmission and reception apparatus is provided to improve transmission distance and efficiency by using a meta structure with a zero refractive index. CONSTITUTION: An energy transmission unit(100) is composed of a wireless transmission loop(110) and a wireless transmission meta structure(120). The wireless transmission loop is composed of a disk unit(111) and a wire unit(112) connected to both sides of the disk. The disk unit is composed of first and second conductive plates(111a,111b) and dielectric materials(111c) inserted between the first and second conductive plates. A wireless transmission meta structure is formed by repeatedly arranging a meta cell(122) on a substrate(121). A wireless energy reception unit(200) is composed of a wireless reception loop(210) and a wireless reception meta structure(220).
Abstract:
본 발명은 대역폭 향상을 위한 다층 기판에 내장된 유전체 공진기 안테나에 관한 것으로, 다층 기판과, 상단에 개구부를 갖는 제1 도체판과, 상기 제1 도체판으로부터 적어도 2층 이상이 적층된 최하위 절연층의 하단에 형성되는 제2 도체판과, 상기 개구부 주위를 소정 간격으로 관통하는 다수의 제1 금속 비아홀과, 유전체 공진기를 급전하기 위한 급전부와, 상기 유전체 공진기 내부에 수직 방향의 금속 경계면을 형성하도록 삽입된 도체 패턴부를 포함함으로써, 공정 오차와 외부 환경에 대한 민감도가 낮고 다중 공진 시 안테나 방사 특성을 향상시킬 수 있다.
Abstract:
PURPOSE: A dielectric resonator antenna embedded in a multilayer substrate is provided to reduce the change of antenna characteristics due to a process error while easily being manufactured. CONSTITUTION: A multilayer substrate has a plurality of insulating layers and conductive layers which are laminated alternately. A first conductive plate(2) has an opening part on the top side of the uppermost insulating layer of the multilayer substrate. A second conductive plate(3) is formed a lowermost insulating layer to be corresponded to an opening. A plurality of metal via holes(4) electrically connects each inter-layer between the lowest insulating layer and the uppermost insulating layer and surrounds the opening of the first conductor plate to form a metal boundary in vertical direction. A power feeding part(5) applies a high frequency signal to a dielectric resonator of a cavity shape inside the multilayer substrate.
Abstract:
PURPOSE: A cooperation transmission method and communications system applying the same are provided to remarkably reduce data transmission traffic and to minimize the degradation of QoS. CONSTITUTION: A destination node generates a message through encoding of the received first code word(S31). If a third code word is received from a relay node, the destination node decodes the third coding word(S32, S33). The destination node generates a fourth code word by combining a second code word(S34). The destination node decodes the fourth code word(S35). The destination node estimates a transmission target message(S36).