ANTENNA

• Main Authors: KOBAYASHI HIDEKI, SUGIMURA SHIRO, YOKOSHIMA TAKAO, CHIBA TOSHIYUKI
• Format: Patent
• Language: English; Korean
• Published: 04.05.2002
• Edition: 7
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

PURPOSE: An antenna having a compact size is provided to efficiently raise the inductance value of the resonance section and to produce high gain. CONSTITUTION: An antenna(A) has two resonance sections(E1,E2). And these resonance sections(E1,E2) are electrically connected each other in series. Each of the antenna elements(E1,E2) is further comprised by an inductance section(1) and a capacitance section(2). At this time, the inductance section(1) and capacitance section(2) are connected in parallel each other. One end(P1) of the resonance section(E1) is connected to the feed point(3) for supplying power to the resonance sections(E1,E2). An impedance matching section is connected externally to the feed point(3) to match the input impedance of the antenna. Further, one end(P3) of the resonance section(E2) is connected in series to a frequency adjusting capacitance section(5). 공진부의 인덕턴스값을 올릴 수 있고, 높은 이득을 얻을 수 있는 소형 안테나를 제공한다. 인덕턴스부(1)와 커패시턴스부(2)가 전기적으로 병렬로 접속되어 이루어진 공진부(E1, E2)를 구비하는 안테나(A)에 있어서, 인덕턴스부(1,1)가 축선(L1, L2)을 중심으로 한 나선형의 4각형의 도체로 이루어진 코일부(1a, 1b)를 갖는 구성으로 되고, 코일부(1a, 1b)의 양단에 형성된 개구부(14a, 14a) 및 개구부(14b, 14b)가 축선(L1, L2)에 대해서 경사진 평면내에 대략 포함되도록 구성되었다.