High frequency antenna device and method of manufacturing the same, HF antenna printed circuit board for HF antenna device, and transmitting and receiving device using HF antenna device

摘要

A high frequency antenna device is provided which includes: a high frequency antenna wiring board having a film antenna formed on one surface of a dielectric substrate made up of multiple, laminated ceramic layers and a high frequency circuit formed on the other surface of the dielectric substrate to generate a high frequency signal; a plate-like metal base having a square opening cut therethrough; and a cover to package a surface of the high frequency circuit on the high frequency antenna wiring board after the high frequency antenna wiring board has been fitted in the opening of the metal base; wherein a periphery of the high frequency antenna wiring board is airtightly sealed and joined to the metal base with glass or brazing metal.