High-frequency communication apparatus and method of manufacturing the same

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 transmi...

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Bibliographic Details
Main Authors KOSHIZAKA ATSUSHI, YOKOYAMA MIZUHO, KAWAHARA KEIJI, OOUCHI SHIROU
Format Patent
LanguageEnglish
Published 23.03.2004
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
SEMICONDUCTOR DEVICES
TRANSMISSION
WAVEGUIDES
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Summary: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.
Bibliography:Application Number: US20020320642