摘要:
A communication sheet (100) according to the present invention that transmits an electromagnetic wave for communication, includes a dielectric layer (120) including a dielectric substrate, a first conductor layer (110) including a mesh sheet-like mesh conductor disposed on one surface of the dielectric substrate; and a second conductor layer (130) including a sheet-like conductor disposed on another surface of the dielectric substrate opposite to the first conductor layer (110). The communication sheet (100) is provided which includes an opening whose width in a direction perpendicular to a traveling direction of the electromagnetic wave for communication traveling through the dielectric layer (120) is not less than 1/20 and not greater than ⅗ of a width in the direction perpendicular to the traveling direction of the dielectric substrate, the opening penetrating from the first conductor layer (110) to the second conductor layer.
摘要:
An IC package includes an IC die disposed at a first surface of a substrate, which includes a signal via extending between first and second metal layers. The first metal layer is proximate to the first surface and includes a first coplanar waveguide. The first coplanar waveguide has a first signal line coupling a die bump to the signal via and has a first ground plane co-planar with the first signal line. The second metal layer is proximate to a second surface and includes a second coplanar waveguide that has a second signal line coupling the signal via to a launcher element and has a second ground plane co-planar with the second signal line. The IC package further includes a waveguide channel aperture comprising a region surrounding the launcher element and which is substantially devoid of conductive material and a via fence disposed at a perimeter of the first region.
摘要:
A differential mode transmission line with a weak coupling structure is presented. The differential mode transmission line with a weak coupling structure includes a first transmission line and a second transmission line. The first transmission line includes a first wiring portion, a second wiring portion, and a third wiring portion. The second transmission line also includes a first wiring portion, a second wiring portion, and a third wiring portion. The wiring portions of the present disclosure are connected through connection portions, and the connection portions are designed as a corner structure. Due to the characteristics of the corner structure of the present disclosure, a pitch between the second wiring portions is greater than that between the first wiring portions or the third wiring portions, thereby generating a weak coupling structure to suppress common mode noises.
摘要:
A stacked module includes a first multilayer substrate including an opening having a stepwise wall face, and a first transmission line including a first grounding conductor layer, a second multilayer substrate supported on a stepped portion of the stepwise wall face and including a second transmission line including a second grounding conductor layer, a first chip mounted on a bottom of the opening and coupled to a third transmission line provided on the first multilayer substrate, and a second chip mounted on the front face of the second multilayer substrate and coupled to the second transmission line. A face to which the second grounding conductor layer or a fourth grounding conductor layer coupled thereto is exposed is joined to the stepped portion to which the first grounding conductor layer or a third grounding conductor layer coupled thereto is exposed, and the first and second grounding conductor layers are coupled.
摘要:
A radio frequency (RF) device includes an RF transmission line structure having opposing boundary walls with a non-rectilinear form factor, and a feed structure configured to introduce RF energy into an area between the opposing boundary walls to illuminate the RF transmission line structure with the RF energy across the non-rectilinear form factor. The feed structure includes a plurality of traveling-waveguide-fed leaky line-segment structures, each configured to launch the RF energy into the area with a propagation direction having an oblique angle relative to an axis of the line-segment structure.
摘要:
A high-frequency signal line includes a first base layer having flexibility, a linear signal line provided on the first base layer and including a first line portion having a first width and a second line portion having a second width greater than the first width, and a first reinforcing conductor provided on the first base layer along the first line portion.
摘要:
A surface wave launcher for launching electromagnetic surface waves, the launcher comprising: a waveguide having a feed end and a launch end; a feed structure coupled to the feed end of the waveguide; wherein the feed structure includes a first conductor; the waveguide comprises a first planar conductive layer having a feed end and a launch end, the feed end being coupled to the first conductor; and the waveguide is arranged to be positioned adjacent a surface suitable for guiding electromagnetic surface waves, wherein the width of the first planar conductive layer tapers from the launch end towards the feed end.
摘要:
Some embodiments include a first differential signal pair and a second differential signal pair. The first and second differential signal pairs are arranged relative to each other in a manner to intentionally reduce or cancel crosstalk introduced by a pinout (for example, a section of a pinout, a socket, a connector, etc.) into at least one of the first differential signal pair and the second differential signal pair. Other embodiments are described and claimed.
摘要:
Since the loss of the conventional microwave device is large, when this device is applied to the microwave component, there are problems; for example, a low-noise amplifier, the noise figure is degraded, and when applied to a high-output amplifier, output and efficiency may be decreased. In particular, in the high-output amplifier of over 100 W class, heat generation at a capacitor which forms the microwave device increases, which causes a problem that the reliability of the microwave device may be decreased. A structure is formed to include a capacitor loaded between two high impedance lines the length of which has ¼ wavelength in the desired frequency band and the characteristic impedance is higher than 50Ω.
摘要:
A differential circuit includes a chip with two terminals in two directions, a first differential signal trace, and a second differential signal trace. The first differential signal trace includes a first parallel section and a first unparallel section connecting the first parallel section to a terminal of the chip. The second differential signal trace includes a second parallel section parallel to the first parallel section, a second unparallel section connecting to the second parallel section, and an equalizing section connecting second unparallel section to the another terminal of the chip. The second parallel section is equal to the first parallel section. The total length of the second unparallel section and the equalizing section is equal to the length of the first unparallel section.