講演抄録/キーワード |
講演名 |
CMOS Vector-Sum Phase Shifter With Novel Vector Summer ○Takana Kaho(Shonan Inst. of Tech.)・Kotaro Takamiya・Ramesh Pokharel Kumar(Kyushu University) エレソ技報アーカイブはこちら |
抄録 |
(和) |
A quasi-millimeter CMOS phase shifter which employed a vector sum structure is designed. It consists of an active balun, LC high pass filters, and a vector summer to achieve 360 degree phase control. To operate with small phase resolutions, we propose a novel vector summer to reduce leakages of undesired vector signals. It uses four shunt transistors and two cancellation transistors, and the effectiveness is demonstrated by a calculation using 0.18um CMOS device models. The fabricated CMOS vector-sum phase shifter achieves 360 degree phase control within 1.5 degree step. |
(英) |
A quasi-millimeter CMOS phase shifter which employed a vector sum structure is designed. It consists of an active balun, LC high pass filters, and a vector summer to achieve 360 degree phase control. To operate with small phase resolutions, we propose a novel vector summer to reduce leakages of undesired vector signals. It uses four shunt transistors and two cancellation transistors, and the effectiveness is demonstrated by a calculation using 0.18um CMOS device models. The fabricated CMOS vector-sum phase shifter achieves 360 degree phase control within 1.5 degree step. |
キーワード |
(和) |
phase shifter / CMOS / Vector-summer / / / / / |
(英) |
phase shifter / CMOS / Vector-summer / / / / / |
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