Scientific Components Corporation

Aaron Vaisman

Behnam Tabrizi

Benjamin Kahtan

Himat Hayer

An apparatus and method for shielding for surface-mount LTCC components and filters to increase the signal isolation from input signal port to output signal port, and to increase isolation from other electrical signals external to the component or filter. Some embodiments include an interposer two-sided and plated through printed circuit board to provide a constant impedance transition from a surface-mount device input and output ports to corresponding input and output connection points of a circuit on a printed circuit board onto which the device is mounted, including a ground plane transition.

Method and apparatus for a shielding structure of surface-mount devices

An apparatus and method for a shielding structure for surface-mount LTCC components and filters to increase the signal isolation from input signal port to output signal port. An LTCC filter device with an increased rejection of undesired frequencies in a stopband and minimal distortion or loss of desired signals in a passband.

Method and apparatus for a shielding structure of surface-mount LTCC devices

LTCC structure extends between top and bottom surfaces, with at least one cavity being formed within the structure and extending from the top surface inwardly in the direction of the bottom surface. A die is disposed within the cavity a top surface of the die is positioned flush with the top surface of the package, resulted in the shortest length of the wire box connecting the die with the LTCC structure and ultimately reducing the inductance.

Low cost millimiter wave integrated LTCC package

An apparatus for a shielding structure for surface-mount components and filters to increase the signal isolation from input signal port to output signal port. An LTCC filter device with an increased rejection of undesired frequencies in a stopband and minimal distortion or loss of desired signals in a passband.

Apparatus for shielding of surface-mount devices

Low cost millimeter wave integrated LTCC package and method of manufacturing

A balun device comprises an input microstrip, a first output microstrip, a second output microstrip, and a junction comprising a conductive termination of the input microstrip, the first output microstrip, and the second output microstrip, whereby an input signal provided to the input microstrip will propagate through the first output microstrip as a first output signal and through the second output microstrip as a second output signal, wherein the phase of the first output signal is identical to the phase of the input signal, and wherein the junction inverts the phase of the second output signal relative to the phase of the input signal and the first output signal.

Geometrically inverted ultra wide band microstrip balun

A planar balun comprises a balun input, a first balun output, a second balun output, two primary coupled lines with a first cross-sectional area disposed on an inhomogeneous medium, and two secondary coupled lines with a second cross-sectional area, the second coupled lines disposed on an inhomogeneous medium. Each of the primary coupled lines are coupled to one of the secondary coupled lines with a predetermined uniform surface space therebetween. The first cross-sectional area and the second cross-sectional area are unequal, thereby producing pairs of asymmetric coupled lines.

Vaisman baluns and microwave devices employing the same

A tunable microstrip having removable contactless tuning stubs is used in the fabrication of a tunable T-junction circuit. Arrays of tuning stubs are formed in proximity to both sides of a microstrip signal trace. Each array of tuning stubs has a shared grounding bus connected by multiple vias to the ground plane. The sinusoidally patterned shape of the tuning stubs and their proximity to the signal trace provides a minimum breakdown voltage of 1.3 kV and a tuning sensitivity of approximately 0.01 dB to 0.02 dB.

Growing community of inventors

New York, NY, United States of America

Aaron Vaisman