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公开(公告)号：US20150351164A1
公开(公告)日：2015-12-03
申请号：US14715473
申请日：2015-05-18
Applicant: NXP B.V.
Inventor： Robin Wesson , Roger Williams
CPC classification number: H05B6/686 , H05B6/6402 , H05B6/705 , H05B6/72 , Y02B40/143
Abstract: A radio frequency (RF) heating apparatus and a microwave oven comprising an RF heating apparatus. The apparatus includes a cavity for receiving an object to be heated. The apparatus also includes a plurality of channels for generating RF radiation to be introduced into the cavity. Each channel includes a frequency synthesiser, a power amplifier and an antenna. Each channel is operable to use a common phase reference signal for generating the RF radiation. Each channel may be controllably operable to generate RF radiation having different, respective frequency spectra. Forward and reverse signal detection circuitry may be provided that is operable to determine amplitude, frequency and/or phase information relating to RF radiation in the cavity. This information may be used for adaptively controlling the RF radiation generated by each channel.
Abstract translation: 射频（RF）加热装置和包括RF加热装置的微波炉。 该装置包括用于接收待加热物体的空腔。 该装置还包括多个通道，用于产生将被引入空腔的RF辐射。 每个通道包括频率合成器，功率放大器和天线。 每个通道可操作以使用公共相位参考信号来产生RF辐射。 每个通道可以被可控地操作以产生具有不同的相应频谱的RF辐射。 可以提供正向和反向信号检测电路，其可操作以确定与空腔中的RF辐射相关的幅度，频率和/或相位信息。 该信息可以用于自适应地控制由每个信道产生的RF辐射。
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公开(公告)号：US20170230106A1
公开(公告)日：2017-08-10
申请号：US15427092
申请日：2017-02-08
Applicant: NXP B.V.
Inventor： Robin Wesson , Mustafa Acar
CPC classification number: H03F1/0294 , H04L27/00
Abstract: An outphasing amplifier having: a first branch to receive and process a first branch signal, the first branch signal being phase modulated, with constant amplitude envelope; and a second branch arranged to receive and process a second branch signal, the second branch signal being phase modulated, with constant amplitude envelope, and at least a portion of the second branch signal anti-phase from the first branch signal, wherein each branch includes: circuitry arranged to process the signal to reduce the energy in sidebands of the signal away from the central frequency, while retaining the phase information in the signal; and an amplifier arranged to amplify the filtered and re-asserted branch signal.
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公开(公告)号：US10116383B2
公开(公告)日：2018-10-30
申请号：US15427092
申请日：2017-02-08
Applicant: NXP B.V.
Inventor： Robin Wesson , Mustafa Acar
Abstract: An outphasing amplifier having: a first branch arranged to receive and process a first branch signal, the first branch signal being phase modulated, with constant amplitude envelope; and a second branch arranged to receive and process a second branch signal, the second branch signal being phase modulated, with constant amplitude envelope, and at least a portion of the second branch signal anti-phase from the first branch signal, wherein each branch includes: circuitry arranged to process the signal to reduce the energy in sidebands of the signal away from the central frequency, while retaining the phase information in the signal; and an amplifier arranged to amplify the filtered and re-asserted branch signal.
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