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公开(公告)号：US20140266390A1
公开(公告)日：2014-09-18
申请号：US14192517
申请日：2014-02-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hongyu WANG
IPC: H03D7/14
CPC classification number: H03D7/1491 , H03D7/1441 , H03D7/1458
Abstract: The present invention provides a transconductance circuit and a frequency mixer. The transconductance circuit includes: a first transistor, a second transistor, a first impedor, a second impedor, a first input network, and a second input network, where a gate of the first transistor is connected to a source of the second transistor through the first input network and the first impedor; and a gate of the second transistor is connected to a source of the first transistor through the second input network and the second impedor. The present invention can enable a current that passes through a transconductance circuit to be reused between a first transistor and a second transistor, thereby improving the gain efficiency of the transconductance circuit and improving performance of the transconductance circuit.
Abstract translation: 本发明提供一种跨导电路和一个混频器。 跨导电路包括：第一晶体管，第二晶体管，第一阻抗器，第二阻抗器，第一输入网络和第二输入网络，其中第一晶体管的栅极通过第二晶体管的栅极连接到第二晶体管的源极， 第一输入网络和第一阻抗器; 并且第二晶体管的栅极通过第二输入网络和第二阻抗器连接到第一晶体管的源极。 本发明可以使通过跨导电路的电流在第一晶体管和第二晶体管之间重新使用，从而提高跨导电路的增益效率并提高跨导电路的性能。
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公开(公告)号：US20170331189A1
公开(公告)日：2017-11-16
申请号：US15523227
申请日：2014-10-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hanyang WANG , Hongyu WANG , Huiliang XU , Shuwen LYU , Jianming LI , Lei WANG , Lina CHEN
Abstract: The present embodiments disclose a wireless mobile device, including a metal frame, a circuit board disposed in the metal frame, where there is a slot between at least one side edge of the circuit board and the metal frame, a first grounding point is connected to the circuit board and the metal frame, a second grounding point is connected to the circuit board and the metal frame, and a feeding point is located between the first grounding point and the second grounding point and is connected to the circuit board and the metal frame; and each antenna open-circuit stub suspends in space on an outer side of the circuit board, one end is connected to the metal frame by crossing the slot, and a connection point of the antenna open-circuit stub and metal frame is located between the feeding point and the second grounding point.
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公开(公告)号：US20170310797A1
公开(公告)日：2017-10-26
申请号：US15520380
申请日：2014-10-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shuwen LYU , Hongyu WANG , Xin ZHU , Huimin ZHANG
IPC: H04M1/02
CPC classification number: H04M1/0208 , H01Q1/088 , H01Q1/243 , H01Q1/44 , H04M1/0254 , H04M1/72527
Abstract: A separated communications device includes a body and a movable connector; the body includes an antenna and a first conductive strip, and the antenna is electrically connected to the first conductive strip; the movable connector includes a second conductive strip; when the movable connector is connected to the body, a part, covered by the movable connector due to the connection, on a surface of the body is a connection position of the body; and the antenna is disposed on the body near the connection position. When the body is connected to the movable connector, the second conductive strip is connected to the first conductive strip, so that the first conductive strip serves as a part of the antenna, and the second conductive strip serves as an extended part of the antenna.
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