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公开(公告)号：US10896876B2
公开(公告)日：2021-01-19
申请号：US16653164
申请日：2019-10-15
发明人： Tomoyuki Tanaka , Takahiro Nakamura
IPC分类号： H03F3/45 , H01L23/528 , H03G3/30
摘要： In a semiconductor device having a variable gain amplifier, a setting error of a gain associated with a crosstalk noise is reduced. A switch block included in the variable gain amplifier includes a plurality of switch transistors Mp1, Mp2, MN1, and Mn2, and can variably set the parallel number of the switches used for coupling by selecting a forward coupling state for coupling the common wirings CSP, CSN to output wirings OUTP, OUTN, respectively, or a cross coupling state for coupling to OUTN, OUTP, respectively. Output wirings OUTN, OUTP form an output wiring pair by extending in a X direction while crossing each other through an underlying wiring layer ML[x-1]. At least one of the common wirings CSP, CSN is located next to the output wiring pair in a Y direction.
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公开(公告)号：US10903813B2
公开(公告)日：2021-01-26
申请号：US16575078
申请日：2019-09-18
发明人： Tomoyuki Tanaka , Takahiro Nakamura
摘要： A phase shifter capable of improving phase accuracy by a simple method is provided. The phase shifter includes a hybrid coupler circuit including inductors with mutual inductances, an amplifying circuit, an impedance matching circuit provided between the hybrid coupler circuit and the amplifying circuit. The impedance matching circuit includes a first resistance element connected to an output node of the hybrid coupler circuit, a capacitance element connected between the first resistance element and the ground line in series, another inductor connected in parallel with the first resistance element, and a second resistance element provided between the inductor and the ground line in series.
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