Intel Corporation

Intel Mobile Communications Gmbh

Infineon Technologies Ag

Intel Deutschland Gmbh

Apple Inc.

Peter Bundgaard

Mikael Bergholz Knudsen

Gert F Pedersen

Poul Olesen

Mauro Pelosi

Alexandru Daniel Tatomirescu

Samantha Caporal Del Barrio

Jan-Erik Mueller

Osama Nafeth Alrabadi

Bernd Adler

Pevand Bahramzy

Emil Buskgaard

Simon Svendsen

Ole Jagielski

Boyan Yanakiev

Andrea Camuffo

Christian Mayer

Nick Shute

Günter Märzinger

Michael Meixner

Andreas Schwarz

Gert Perdersen

Elpiniki Tsakalaki

Sören Fisker

Poul Gundersen

Jörn Toftgaard

Described herein are architectures, platforms and methods for electrically tuning radiators in a portable device. The electrical tuning implements platform independent radiating elements or antennas in a portable device.

Platform independent antenna

Antenna systems that can include first and second radiators and an electromagnetic coupler disposed adjacent to the first and the second radiators. The radiators can be tunable to one or more frequencies. The electromagnetic coupler can be, for example, an inductive coupler or a capacitive coupler. One or more of the antenna systems can be configured to use carrier aggregation by tuning the first and/or the second radiators. For example, one or more of the antenna systems can be configured to use inter-band aggregation, intra-band contiguous aggregation, and intra-band non-contiguous aggregation.

Antenna system

Examples of a system and method for adaptively tuning a radio frequency (RF) front-end are generally described herein. In some examples, the frequency of a transmit signal of RF front-end circuitry is swept in at least a part of the RF transmit band. RF power in a receiver is detected as a function of the RF frequency of the transmit signal to determine a location of at least one tunable notch or other band stop element in the frequency domain. Information from the detected RF power is determined as a function of the RF frequency of the transmit signal. The RF front-end circuitry is adjusted to a selected frequency response using the determined information.

Mobile communication device and method for adaptive RF front-end tuning

Representative implementations of devices and techniques provide self-interference suppression for a transceiver of a wireless communication system. To minimize interference from a transmit signal appearing on a receive path of the system, a cross-correlation is minimized between the transmit signal and a desired receive signal.

Correlation-based self-interference suppression

An antenna having a plurality of ports coupled to at least one radiator opening or protuberance formed on a metallic surface. A plurality of modulators are coupled to the plurality of respective ports and configured to modulate phase or amplitude of a plurality of signals radiated at the plurality of respective ports. A combiner is configured to combine the modulated signals to substantially cancel power reflected from the plurality of respective ports, wherein the plurality of respective ports are functionally aggregated into a single port.

Antenna for mobile device having metallic surface

An apparatus and method to provide isolation between a first antenna and a second antenna, each of which is located on a ground plane. A slot that is tunable by a variable reactance is located on the ground plane, the slot not being appreciably resonant at the operating frequency of the first antenna and the second antenna. The antennas operate in an orthogonal mode. Varying the slot reactance varies the electrical distance over which the coupling current between the two antennas flows. Increased RF isolation to a desired magnitude results by maintaining the orthogonality at desired bands. The RF isolation can be measured and a departure from the desired magnitude of isolation causes the reactance to be varied to increase the RF isolation back to the desired magnitude. The antennas and the slot are placed at locations on the ground plane of high current density.

Antenna card for controlling and tuning antenna isolation to support carrier aggregation

The disclosed invention relates to an antenna configuration that is configured to tune the frequency of transmission without using filters. The antenna configuration comprises a tunable multi-feed antenna configured to wirelessly transmit electromagnetic radiation. A signal generator is configured to generate a plurality of signals that collectively correspond to a signal to be transmitted. The plurality of signals have a phase shift or amplitude difference therebetween. The plurality of signals are provided to a plurality of antenna feeds connected to different spatial locations of the tunable multi-feed antenna. The values of the phase shift and/or amplitude difference define an antenna reflection coefficient that controls the frequency characteristics that the tunable multi-feed antenna operates at, such that by varying the phase shift and or amplitude difference, the frequency characteristics can be selectively adjusted.

Antenna tuning via multi-feed transceiver architecture

The present disclosure relates to impedance tuning of transmitting and receiving antennas.

Semiconductor device and fabrication method

The present disclosure relates to a wireless communication system configured to transforming the radiating mechanism of the antenna system in such a way to support different operating modes depending on the needs. In some examples, the wireless communication system comprises an antenna structure connected to a signal process unit. The antenna structure comprises a radiating mechanism configured to transmit or receive electromagnetic radiation. A switchable operating mode element is configured to receive a signal and to dynamically vary a quality factor of the radiating element by selectively routing the signal along one of a plurality of signal paths, which respectively provide different antenna parameters to the radiating mechanism, based upon a current operating mode of the wireless communication system. By dynamically varying a quality factor of the radiating element, the wireless communication system can effectively support different operating modes.

Tunable quality factor

Impedance tuning of transmitting and receiving antennas

An antenna system includes a ground plane including at least one slot, a first antenna element coupled to a first portion of the ground plane, a second antenna element coupled to a second portion of the ground plane which is spaced apart from the first portion and a tuner configured to change the influence of the slot to a current flow through the ground plane from the first portion to the second portion.

Antenna system, method and mobile communication device

The disclosed invention relates to a transceiver system having one or more receive antennas that receive a first radio frequency (RF) signal and a plurality of transmit antennas that wirelessly transmit a second RF signal. A local channel determination unit provides data corresponding to the environment of local communication channels (i.e., the communication channels between the transmit antennas and the receive antennas) to a beamforming element, which enables beamforming functionality within the transmit and/or receive antennas (e.g., by using analog or digital weights to vary the radiation pattern generated by the transmit antennas) so as to attenuate RF signals extending between the transmit antennas and the receive antennas. By attenuating signals extending between the transmit and the receive antennas, a high degree of isolation is achieved between transmission and reception paths.

Agile and adaptive transmitter-receiver isolation

The disclosed invention relates to a MIMO (multiple input, multiple output) wideband transceiver. In some cases, the MIMO wideband transceiver comprises a signal processor that outputs or receives a plurality of distinguishable data streams. A first data stream is provided to a first antenna port connected to a plurality of wideband antennas, while a second data stream is provided to a second antenna port connected to a wideband antenna. A spatial filter element configured to assign antenna weights to the plurality of wideband antennas, which cause the wideband antennas to operate in a manner that attenuates wireless signals, at a frequency range at which the wideband transmit wideband radiate, in the direction of the wideband antenna without attenuating the wireless signals in other directions. By attenuating signals extending between the plurality of wideband antennas and the wideband antenna, wideband decoupling between first and second antenna ports is achieved.

Agile and adaptive wideband MIMO antenna isolation

Disclosed herein are techniques, systems, and methods relating to minimizing mutual coupling between a first antenna and a second antenna. In one implementation, a plurality of antennas and at least one tuning module are provided. A control module may be coupled to the tuning module. The control module may be configured to control the at least one tuning module to alter a phase and an amplitude of a control signal communicated to at least one of the plurality of antennas to reduce mutual coupling between the plurality of antennas.

Growing community of inventors

Aalborg, Denmark

Peter Bundgaard