Ihp Gmbh-innovations for High Performance Microelectronics/leibniz-institut Fur Innovative Mikroelektronik

Alcatel Lucent

Chafik Meliani

Gunther Lippert

Georg Post

Eckhard Grass

Wolfgang Mehr

Jaroslaw Dabrowski

Grzegorz Lupina

Christian Wenger

Subhajit Guha

Andre Wolff

Mindaugas Lukosius

Farabi Ibne Jamal

A measuring carrier for position-resolved meteorological determination of a measurement variable dependent on the dielectric permittivity of a device under test. The measuring carrier has a supporting means comprising a measuring surface, to which the device under test can be applied, and a measuring transmission line which entirely or partially forms the measuring surface and comprises a multiplicity of transmission line cells for the purpose of transmitting a radio-frequency measurement signal which can be injected at the input port. The measuring surface is structured in a cellular manner, wherein each of the transmission line cells has a cell-individual propagation constant with respect to the radio-frequency measurement signal in a state free of a device under test. This constant differs from the respective cell-individual constants of the other transmission line cells.

Inhomogeneous transmission line for determining the permittivity of a device under test in a position-resolved manner

The present invention relates to a phased array antenna () with an electronically variable antenna pattern, wherein control signals for at least two phased antenna elements () are processed for a broadcast transmission and are broadcast to the phased antenna elements () via a wireless medium or using feed lines for useful signal components of the phased antenna elements in a frequency band differing from the frequency band of the useful signal components. As a result of using the broadcast transmission in a different frequency band, there is no need for any additional signals or lines for the array antenna, and the complexity of the array antenna can be reduced and the flexibility and reconfigurability can be improved.

Electronically pivotable array antenna with broadcast-based control

A graphene base transistor comprises on a semiconductor substrate surface an emitter pillar and an emitter-contact pillar, which extend from a pillar foundation in a vertical direction. A dielectric filling layer laterally embeds the emitter pillar and the emitter-contact pillar above the pillar foundation. The dielectric filling layer has an upper surface that is flush with a top surface of the emitter pillar and with the at least one base-contact arm of a base-contact structure. A graphene base forms a contiguous layer between a top surface of the emitter pillar and a top surface of the base-contact arm. A collector stack and the base have the same lateral extension parallel to the substrate surface and perpendicular to those edges of the top surface of the emitter pillar and the base-contact arm that face each other.

Graphene base transistor and method for making the same

A device for coupling high-frequency signals between a first component and a second component is adapted to supply a first bias voltage-current pair to the first component and a second bias voltage-current pair to the second component.

High-frequency signal coupling device

Growing community of inventors

Berlin, Germany

Chafik Meliani