Waveguide device for guiding a radio frequency signal at a given frequency f, the device including: a core manufactured by additive manufacturing and including side walls with inner and outer surfaces, the inner surfaces delimiting a waveguide channel, wherein a cross-section of the channel has two straight sides joined together by two half-portions, at least one of the two half-portions being rounded or formed of at least two straight segments, the cross-section having a maximum length (a) and a maximum width (b), the ratio between the maximum length (a)/maximum width (b) being between 2.05 and 3.5, preferably between 2.05 and 2.4.

Waveguide device for guiding a radio frequency signal at a given frequency f, the device including: a core manufactured by additive manufacturing and including side walls with inner and outer surfaces, the inner surfaces delimiting a waveguide channel, wherein a cross-section of the channel has two straight sides joined together by two half-portions, at least one of the two half-portions being rounded or formed of at least two straight segments, the cross-section having a maximum length (a) and a maximum width (b), the ratio between the maximum length (a)/maximum width (b) being between 2.05 and 3.5, preferably between 2.05 and 2.4.

A conformable waveguide for conveyance of high frequency radio signals including a hollow component having a smooth interior surface and an obround cross section, the obround cross section defined as having parallel opposing sides connected by two rounded opposing ends, where the parallel opposing sides are separated by a first distance, where vertices of the two rounded opposing ends are separated by a second distance, and where the second distance is greater than the first distance.

A conformable waveguide for conveyance of high frequency radio signals including a hollow component having a smooth interior surface and an obround cross section, the obround cross section defined as having parallel opposing sides connected by two rounded opposing ends, where the parallel opposing sides are separated by a first distance, where vertices of the two rounded opposing ends are separated by a second distance, and where the second distance is greater than the first distance.

Provided is a switch device that can be used in a millimeter wave band and that can exhibit both low loss and high isolation characteristics. This switch device (1) includes: a post-wall waveguide (filter main body 1M) in which openings (AP1 to AP5) are formed in a broad wall (conductor layer 2); a cover (5) including a portion that blocks the openings (AP1 to AP5), the portion being made of an electrically conductive material; and a cover control mechanism (actuator 6) that switches between a first state in which the openings (AP1 to AP5) are blocked by the cover (5) and a second state in which the openings (AP1 to AP5) are open.

Provided is a switch device that can be used in a millimeter wave band and that can exhibit both low loss and high isolation characteristics. This switch device (1) includes: a post-wall waveguide (filter main body 1M) in which openings (AP1 to AP5) are formed in a broad wall (conductor layer 2); a cover (5) including a portion that blocks the openings (AP1 to AP5), the portion being made of an electrically conductive material; and a cover control mechanism (actuator 6) that switches between a first state in which the openings (AP1 to AP5) are blocked by the cover (5) and a second state in which the openings (AP1 to AP5) are open.

A field of waveguides is disclosed. A tubular electromagnetic waveguide includes a hollow central portion defined by a first set of at least seven primary hollow tubes that are distributed annually about the hollow central portion, and a second set of tubes including at least one secondary hollow tube; when there are a plurality thereof positioned annularly around the primary hollow tubes the area of the at least one secondary hollow tube is comprised between 0.35 and 0.50 times the area of the hollow central portion. The hollow tubes of the first set are substantially of same size and distant from one another.

According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a first dielectric part comprising a dielectric; a conductor part covering a part of the first dielectric part; and a second dielectric part surrounding the first dielectric part and the conductor part.

According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a first dielectric part comprising a dielectric; a conductor part covering a part of the first dielectric part; and a second dielectric part surrounding the first dielectric part and the conductor part.

A conformable waveguide for conveyance of high frequency radio signals including a hollow component having a smooth interior surface and an obround cross section, the obround cross section defined as having parallel opposing sides connected by two rounded opposing ends, where the parallel opposing sides are separated by a first distance, where vertices of the two rounded opposing ends are separated by a second distance, and where the second distance is greater than the first distance.