摘要:
Es wird eine Magnetantenne mit verringerten Verlusten angegeben. Die Antenne hat einen Magnetkern und eine Spule darum sowie eine Abschirmung. Die Abschirmung ist längsseitig neben dem Magnetkern angeordnet und verringert Wirbelströme.
摘要:
An electromagnetic interference (EMI) indicator comprising an ultra-wideband detector preferably having a bandwidth of at least 30 MHz to 6 GHz comprising at least one antenna for receiving EMI, each antenna having receiver protection, a logarithmic receiver to convert the EMI signal into a direct voltage proportional to the magnitude of the EMI signal, a peak/average detector and controller connected to the output of the receiver for generating a signal when the direct voltage developed in the detector exceeds a pre-set threshold voltage using, for example, a carefully defined algorithm wherein the peak/average detector and controller is connectable to indicating means which is activateable by the controller which stores EMI event data in a non-volatile memory store. Also provided are systems and methods for detecting and protecting electrical / electronic equipment from electromagnetic interference.
摘要:
Methods and apparatus for a dual polarized thumbtack radiator having enhanced dissipation. In embodiments, a power divider resistor for a balun is coupled directly to ground plane blocks that provide a RF shield. An attachment mechanism, such as a screw secures the thumbtack assembly to an aperture plate and provides thermal and electrical connection.
摘要:
배치가 자유롭고 공간 활용성이 뛰어난 리셉터클 커넥터가 개시된다. 본 발명의 일 양상에 따른 안테나 기능을 갖는 리셉터클 커넥터는 플러그 커넥터와 회로 기판을 전기적으로 연결하는 리셉터클 커넥터로서, 메탈 하우징, 컨택트 어셈블리, 세라믹 쉘을 포함한다. 메탈 하우징은 전면이 개방되고 내부가 빈 형상으로 이루어진다. 컨택트 어셈블리는 메탈 하우징의 내부에 설치되며 전기 신호를 전달하는 복수의 컨택트들을 구비한다. 세라믹 쉘은 하우징을 감싸는 형태로 결합된다. 세라믹 쉘의 상면에는 안테나 패턴이 형성된다.
摘要:
Ferrite material utilized in a smart metal card as a shield between a metal layer and an antenna does not occupy a complete layer. Instead, only sufficient ferrite material is utilized to track and conform to the antenna.