Abstract:
A waveguide. The waveguide may include a first waveguide region that includes a signal trace with a first width. The waveguide may further include a second waveguide region that includes the signal trace with a second width. The first width may be different from the second width. The signal trace may be configured to transmit an electrical signal. The signal trace with the second width may be configured to couple with an integrated circuit.
Abstract:
A high-frequency circuit package including a dielectric substrate (10); a signal line (31), a first ground conductor layer (32), a second ground conductor layer (33), and a frame-shaped dielectric layer (16) formed on the dielectric substrate; a fourth ground conductor layer (35) formed on the frame-shaped dielectric layer; a first recess (29) formed in the frame-shaped dielectric layer and including a first (29b) surface and a second surface (29c) that are located above the first ground conductor layer (32) and the second ground conductor layer (33) and extend laterally at an oblique angle with respect to the length direction of the signal line; a first ground line (38a) formed on the first surface and electrically connecting the second ground conductor layer (33) with the fourth ground conductor layer (35); and a second ground line (38b) formed on the second surface and electrically connecting the third ground conductor layer (34) with the fourth ground conductor layer (35).
Abstract:
A waveguide structure or a printed-circuit board is formed using a plurality of unit structures which are repetitively aligned in a one-dimensional manner or in a two-dimensional manner. The unit structure includes first and second conductive planes which are disposed in parallel with each other, a transmission line having an open end which is formed in a layer different from the first and second conductive planes and positioned to face the second conductive plane, and a conductive via electrically connecting the transmission line to the first conductive plane.
Abstract:
A high-frequency circuit device solves problems caused by a spurious mode reflection generated at a part where propagation of a spurious mode wave is prevented, with the result that propagation of the spurious mode wave such as a parallel plate mode wave is blocked. In the arrangement of the high-frequency circuit device, a spurious mode wave radiated from a transmission line (1) including at least two parallel planar conductors (22) leaks, and the leaked spurious mode wave is reflected by a spurious-mode reflection circuit (3) disposed parallel to the transmission line (1). The distance (W) between the transmission line (1) and the spurious-mode reflection circuit (3) is equivalent to the length in which a wave reflected by the spurious-mode reflection circuit (3) is cancelled by the transmission line (1).
Abstract:
The present invention provides a carrier layout for an electro-optical module and respective electro-optical module, the carrier layout comprising a substrate (210) comprising a ground plane layer (212) and a coplanar waveguide interconnect (270; 280) disposed onto the substrate (210). The coplanar waveguide interconnect (270; 280) comprises a pair of coplanar conductors (252, 254; 262, 264) and a central conductor (256; 266) disposed between the pair of coplanar conductors (252, 254; 262, 264). The coplanar conductors of the pair are electrically connected to each other by at least one conducting island (272 - 274; 282 - 283) that is isolated from the ground plane layer (212). The present invention also provides an interconnect structure for coupling an electronic unit to an optical device disposed on a substrate (210) having a ground plane layer (212), the interconnect structure comprising a pair of coplanar conductors (252, 254; 262, 264) and a central conductor (256; 266) disposed between the pair of coplanar conductors (252, 254; 262, 264). The conductors of the pair are electrically connected by at least one conducting island (272 - 274; 282 - 283) that is isolated from the ground plane layer (212).
Abstract:
The invention relates to a high-frequency transmission line comprising a central conductor strip (6) associated with at least one conductor shielding plane (4). In said transmission line, at least some of the space between the conductor plane and the conductor strip comprises a ferroelectric material (10).
Abstract:
An interconnection apparatus (50) providing a right angle H-plane bend in grounded coplanar waveguide GCPW transmission line media is disclosed. Respective first and second GCPW lines (60, 80) each include a dielectric substrate (62, 82), on which is formed on a bottom surface (62B, 82B) a bottom conductive ground plane (64, 84), and on a top surface (62A, 82A) is formed a center conductor strip (68, 88) sandwiched between first and second top ground plane strips (66A, 66B, 86A, 86B). The two GCPW lines (60, 80) are disposed orthogonally, forming a corner junction (100) at which corresponding bottom and top ground planes (66A, 86A, 64, 84), and the center conductor strips (68, 88) of the lines (60, 80) are electrically connected. The gaps (70A, 70B, 90A, 90B) between the top ground plane strips (66A, 66B, 86A, 86B) and the center conductor strips (68, 88) have regions (76A, 76B, 96A, 96B) of increased width at the corner junction (100) to compensate for the capacitance resulting from the junction (100).
Abstract:
A high-frequency circuit package including a dielectric substrate (10); a signal line (31), a first ground conductor layer (32), a second ground conductor layer (33), and a frame-shaped dielectric layer (16) formed on the dielectric substrate; a fourth ground conductor layer (35) formed on the frame-shaped dielectric layer; a first recess (29) formed in the frame-shaped dielectric layer and including a first (29b) surface and a second surface (29c) that are located above the first ground conductor layer (32) and the second ground conductor layer (33) and extend laterally at an oblique angle with respect to the length direction of the signal line; a first ground line (38a) formed on the first surface and electrically connecting the second ground conductor layer (33) with the fourth ground conductor layer (35); and a second ground line (38b) formed on the second surface and electrically connecting the third ground conductor layer (34) with the fourth ground conductor layer (35).