High-frequency communication apparatus and method of manufacturing the same

• Main Authors: Koshizaka, Atsushi, Oouchi, Shirou, Yokoyama, Mizuho, Kawahara, Keiji
• Format: Patent
• Language: English
• Published: 17.06.2003

The present invention relates to a high-frequency communication apparatus and, more specifically, to a high-frequency communication apparatus comprising high-frequency circuit elements capable of processing signals of frequencies in a microwave frequency band or a millimeter wave frequency band, and a case containing those high-frequency circuit elements, and a method of manufacturing the high-frequency communication apparatus. A high-frequency communication apparatus has a case containing a transmitter-receiver including circuit elements. A functional structure capable of confining radiation energy radiated by unnecessary radio wave source to prevent the radiation energy from interfering with the operations of the transmitter-receiver is formed on at least one of the walls of the case by forming a plurality of projections in regular arrangement by press working. The circuit elements of the transmitter-receiver are packed in the case to suppress the undesired electromagnetic coupling of internal and external electromagnetic waves with the circuit elements of the transmitter-receiver.