Abstract:
According to one embodiment, a head suspension unit includes: a head suspension; a thin plate body of a flexure attached to a surface of the head suspension and holding an insulating layer on the surface thereof; a wiring pattern formed on a surface of the insulating layer and forming a hollow conductor defining a hollow space extending along the surface of the insulating layer; and an insulating material filling the hollow space.
Abstract:
In some embodiments a channel is formed by combining two imprinted subparts each made of printed circuit board material and the imprinted subparts are laminated to form a waveguide. Other embodiments are described and claimed.
Abstract:
In some embodiments a channel is formed in printed circuit board material, the formed channel is plated to form at least two side walls of a quasi-waveguide, and printed circuit board material is laminated to the plated channel using thermoset adhesive. Other embodiments are described and claimed.
Abstract:
In some embodiments a channel is formed by combining two imprinted subparts each made of printed circuit board material and the imprinted subparts are laminated to form a waveguide. Other embodiments are described and claimed.
Abstract:
Circuit board (1) and method of producing thereof, the circuit board having a cavity for microstrip to waveguide transition means (2) defined by a hollow space on the walls of which a protection layer (21) is provided. A microelectronic substrate (33) is placed upon an adhesive film (31) adhered onto a surface of the circuit board (1), the adhesive film being pre-cut in selected areas (32) thereof providing openings therethrough. A metal layer (5) is disposed on the resulting structure, wherein a selected part (51) of the metal layer (5) present on a surface of microelectronics substrate 33, facing the hollow space defined by the cavity for microstrip to waveguide transition means (2) is removed.
Abstract:
A tunable dielectric structure includes a first layer of dielectric material, a second layer of dielectric material positioned adjacent to the first layer of dielectric material, with the second layer of dielectric material having a dielectric constant that is less than the dielectric constant of the first layer of dielectric material, and electrodes for applying a controllable voltage across the first dielectric material, thereby controlling a dielectric constant of the first dielectric material, wherein at least one of the electrodes is positioned between the first and second layers of dielectric material. The dielectric materials can be formed in various shapes and assembled in various orientations with respect to each other. The tunable dielectric structure is used in various devices including coaxial cables, cavity antennas, microstrip lines, coplanar lines, and waveguides.
Abstract:
A microstrip line includes a strip conductor, a line electrode, and edge electrodes provided at the edges on both sides of the line electrode. The construction of the microstrip line greatly reduces the edge effect of the line electrode and decreases the conductor loss of the line electrode.
Abstract:
The invention relates to a microwaveguide that is integrated in the dielectric layer of a conductor carrier, e.g. a printed circuit board. The waveguide enables different types of active and/or passive functions intended to influence the signals sent through the waveguide to be integrated at appropriate positions in the waveguide.
Abstract:
A tunable dielectric structure includes a first layer of dielectric material, a second layer of dielectric material positioned adjacent to the first layer of dielectric material, with the second layer of dielectric material having a dielectric constant that is less than the dielectric constant of the first layer of dielectric material, and electrodes for applying a controllable voltage across the first dielectric material, thereby controlling a dielectric constant of the first dielectric material, wherein at least one of the electrodes is positioned between the first and second layers of dielectric material. The dielectric materials can be formed in various shapes and assembled in various orientations with respect to each other. The tunable dielectric structure is used in various devices including coaxial cables, cavity antennas, microstrip lines, coplanar lines, and waveguides.
Abstract:
A method is provided for forming a waveguide in a printed circuit board. This may include forming a trench in a printed circuit board substrate and forming at least one metalized surface along the trench. A metalized capping surface may be provided over the trench so as to form the waveguide structure.