Intel Corporation

Intel Mobile Communications Gmbh

Intel Deutschland Gmbh

Apple Inc.

Ashkan Naeini

Herbert Stockinger

Umut Basaran

Robert Kostack

Zdravko Boos

Werner Schelmbauer

Stefan Herzinger

Bernd-Ulrich Klepser

Martin Simon

Josef Schmal

Gerhard Mitteregger

Embodiments provide an amplification circuit, an apparatus for amplifying, a low noise amplifier, a radio receiver, a mobile terminal, a base station, and a method for amplifying. An amplification circuit for amplifying a radio signal comprises a first amplification stage configured to amplify an input signal, V(t), to obtain an intermediate signal. The amplification circuit further comprises a cascoding circuit configured to amplify the intermediate signal to obtain a first output signal V(t). The amplification circuit further comprises a second amplification stage configured to amplify the intermediate signal to obtain a second output signal, V(t).

Amplification circuit, apparatus for amplifying, low noise amplifier, radio receiver, mobile terminal, base station, and method for amplifying

Embodiments provide an amplification circuit, an apparatus for amplifying, a low noise amplifier, a radio receiver, a mobile terminal, a base station, and a method for amplifying. An amplification circuit () for amplifying a radio signal comprises a first amplification stage () configured to amplify an input signal, V(t), to obtain an intermediate signal. The amplification circuit () further comprises a cascoding circuit () configured to amplify the intermediate signal to obtain a first output signal V(t). The amplification circuit () further comprises a second amplification stage () configured to amplify the intermediate signal to obtain a second output signal, V(t).

An apparatus for generating base band receive signals includes a first analog-to-digital converter module generating a first digital high frequency receive signal at least by sampling a first analog high frequency receive signal, a first digital signal processing module generating a first base band receive signal based on the first digital high frequency receive signal, a second analog-to-digital converter module generating a second digital high frequency receive signal at least by sampling a second analog high frequency receive signal and a second digital signal processing module generating a second base band receive signal based on the second digital high frequency receive signal. The first analog high frequency receive signal comprises first payload data at a first receive channel associated with a first carrier frequency and the second analog high frequency receive signal comprises second payload data at a second receive channel associated with a second carrier frequency.

Apparatus and method for generating base band receive signals

Representative implementations of devices and techniques provide isolation between transmit and receive portions of a broadband transceiver of a wireless communication system. filterless isolation technique is performed via a directional Phase shifting arrangement that includes an isolating hybrid device coupled to a non-reciprocal phase shifting combiner/splitter.

Filterless broadband front-end isolator

One embodiment of the present invention relates to a dual mode receiver that includes an RF splitter configured to operate in two modes, wherein in a first mode a single low noise amplifier is active to receive an RF input signal, and in a second mode two low noise amplifiers are active to receive the RF input signal. The receiver further includes a programmable degeneration component operably coupled to the RF splitter, and configured to provide a first performance characteristic in the first mode, and a second, different performance characteristic in the second mode, wherein the first and second performance characteristics influence an input impedance of the RF splitter to be substantially the same in the first and second modes.

Dual mode receiver with RF splitter using programmable passive components

A push-pull amplifier includes an amplifier input, a push amplifier stage, a pull amplifier stage and an inverting amplifier output.

Push-pull amplifier and differential push-pull amplifier

Some embodiments of the invention relate a transimpedance amplifier circuit having a negative feedback network that provides additional filtering of an out-of-band transmitted signal is provided herein. In one embodiment, the transimpedance amplifier circuit has a first pole, transimpedance amplifier having a multi-stage operational amplifier with an input terminal and an output terminal. An RC feedback network extends from the output terminal to the input terminal. A negative feedback network, extending from an internal node of the multi-stage operational amplifier to an input terminal of the single pole, transimpedance amplifier provides a negative feedback signal with an amplitude having an opposite polarity as the out-of-band transmitted signal. The negative feedback signal suppresses the out-of-band-transmitted signals within the demodulator circuit, thereby improving linearity of the transimpedance amplifier circuit.

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Munich, Germany

Ashkan Naeini