RF INTEGRATED MULTI-CHANNEL RF CIRCUIT WITH PHASE SENSING

• Main Authors: KOLLMANN HELMUT, ZINNOECKER MATHIAS, GSTOETTENBAUER BERNHARD, FIORE VINCENZO, STUHLBERGER RAINER, SCHRATTENECKER JOCHEN OLIVER, MELZER ALEXANDER, ONIC ALEXANDER, CHRISTOFFERS NIELS
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2019
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

A circuit is described herein. In accordance with one embodiment the circuit includes two or more RF channels, wherein each channel includes an input node, a phase shifter and an output node. Each channel is configured to receive an RF oscillator signal at the input node and to provide an RF output signal at the output node. The circuit further includes an RF combiner circuit that is coupled withthe outputs of the RF channels and configured to generate a combined signal representing a combination of the RF output signals, and a monitor circuit that includes a mixer and is configured to receive and down-convert the combined signal using an RF reference signal. Thus a mixer output signal is generated that depends on the phases of the RF output signals. 本文描述了一种电路。根据一个实施例，该电路包括两个或更多个RF通道，其中每个通道均包括输入节点、移相器和输出节点。每个通道均被配置为在输入节点处接收RF振荡器信号，并且在输出节点处提供RF输出信号。该电路还包括：RF组合电路，与RF通道的输出耦合并且被配置为生成表示RF输出信号的组合的组合信号；以及监控电路，包括混频器并且被配置为接收组合信号并且使用RF参考信号下变频该组合信号。因此，根据RF输出信号的相位生成混频器输出信号。