Circuit for protecting high frequency electrical or electronic components of e.g. wireless local area network apparatus against over voltage, has short circuit branch lines galvanically secured against ground potential

摘要

The circuit has a high frequency line (HL) running between two terminals for transmitting high frequency signals. Short circuit branch lines (Z1, Z2) are extended from the high frequency line and galvanically secured against ground potential. The branch lines are formed as components of a filter structure. The filter structure produces a transfer function for the high frequency line with a high-pass behavior between the terminals. The branch lines are provided on an insulative substrate based on microstrip technology and designed as wires. An independent claim is also included for a high frequency apparatus comprising a high frequency component.