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公开(公告)号：US20060198176A1
公开(公告)日：2006-09-07
申请号：US11356293
申请日：2006-02-17
Applicant: Da-Rong Huang , Huey-Ru Chuang , Yuan-Kai Chu
Inventor： Da-Rong Huang , Huey-Ru Chuang , Yuan-Kai Chu
IPC: G11C5/02
CPC classification number: H03F1/26 , H03F3/195 , H03F3/347 , H03F3/4508 , H03F2200/294 , H03F2200/36 , H03F2200/372 , H03G1/007
Abstract: A low noise amplifier including a first-stage signal amplifier, a second-stage signal amplifier and a gain control unit is disclosed. The first-stage signal amplifier is for receiving an input signal and outputting a first output signal accordingly. The second-stage signal amplifier is coupled to the first-stage signal amplifier for outputting a second output signal according to the first output signal. The second-stage signal amplifier includes a first output transistor for outputting the second output signal. The gain control unit includes a first variable resistance device coupled to an input terminal of the first output transistor for adjusting voltage gain of the second output signal.
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公开(公告)号：US07495514B2
公开(公告)日：2009-02-24
申请号：US11356293
申请日：2006-02-17
Applicant: Da-Rong Huang , Huey-Ru Chuang , Yuan-Kai Chu
Inventor： Da-Rong Huang , Huey-Ru Chuang , Yuan-Kai Chu
IPC: H03G3/12
CPC classification number: H03F1/26 , H03F3/195 , H03F3/347 , H03F3/4508 , H03F2200/294 , H03F2200/36 , H03F2200/372 , H03G1/007
Abstract: A low noise amplifier including a first-stage signal amplifier, a second-stage signal amplifier and a gain control unit is disclosed. The first-stage signal amplifier is for receiving an input signal and outputting a first output signal accordingly. The second-stage signal amplifier is coupled to the first-stage signal amplifier for outputting a second output signal according to the first output signal. The second-stage signal amplifier includes a first output transistor for outputting the second output signal. The gain control unit includes a first variable resistance device coupled to an input terminal of the first output transistor for adjusting voltage gain of the second output signal.
Abstract translation: 公开了一种包括第一级信号放大器，第二级信号放大器和增益控制单元的低噪声放大器。 第一级信号放大器用于接收输入信号并相应地输出第一输出信号。 第二级信号放大器耦合到第一级信号放大器，用于根据第一输出信号输出第二输出信号。 第二级信号放大器包括用于输出第二输出信号的第一输出晶体管。 增益控制单元包括耦合到第一输出晶体管的输入端的第一可变电阻器件，用于调节第二输出信号的电压增益。
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公开(公告)号：US07042412B2
公开(公告)日：2006-05-09
申请号：US10860213
申请日：2004-06-03
Applicant: Huey-Ru Chuang
Inventor： Huey-Ru Chuang
IPC: H01Q9/28
Abstract: A printed dual dipole antenna is disposed in a specific region with a border on a PCB having a first surface and a second surface. The printed dual dipole antenna has a first split dipole antenna along a first operation direction. The first split dipole antenna includes a balun member, a first antenna branch, and a second antenna branch on the first surface of the PCB, and a signal feeding member on the second surface of the PCB. Wherein, at least one of the first antenna branch and the second antenna branch is bent into a bent structure to fit within the specific region. A second split dipole antenna along a second operation direction. Wherein, at least one of the first antenna branch and the second antenna branch is bent into a bent structure to fit within the specific region.
Abstract translation: 印刷的双偶极子天线设置在具有第一表面和第二表面的PCB上的边界的特定区域中。 印刷的双偶极天线具有沿着第一操作方向的第一分裂偶极天线。 第一分离偶极天线包括在PCB的第一表面上的平衡 - 不平衡变换器，第一天线分支和第二天线分支，以及在PCB的第二表面上的信号馈送构件。 其中，第一天线分支和第二天线分支中的至少一个被弯曲成弯曲结构以适合特定区域。 沿着第二操作方向的第二分裂偶极天线。 其中，第一天线分支和第二天线分支中的至少一个被弯曲成弯曲结构以适合特定区域。
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公开(公告)号：US5767809A
公开(公告)日：1998-06-16
申请号：US611948
申请日：1996-03-07
Applicant: Huey-Ru Chuang , Tzyy-Sheng Horng , Jin-Won Pan , Chung-Ho Wang
Inventor： Huey-Ru Chuang , Tzyy-Sheng Horng , Jin-Won Pan , Chung-Ho Wang
Abstract: An antenna is disclosed with a first Z-shaped strip resonant element disposed in a first plane. The first strip resonant element has first and second identical sized and shaped, parallel, longitudinal strip segments. The first strip resonant element also has a third segment which connects diagonally opposite ends of the first and second strip segments. The antenna also has a second Z-shaped strip resonant element disposed in a second plane that is parallel to the first plane. The second strip resonant element has fourth and fifth identical sized and shaped, parallel longitudinal strip segments. The second strip resonant element also has a sixth segment, having identical dimensions and an identical shape as the third segment, which connects diagonally opposite ends of the fourth and fifth segments. The second Z-shaped strip resonant element is disposed in the second plane so that the sixth segment overlies said third segment and so that said first, second, fourth and fifth segments overlie a rectangle.
Abstract translation: 公开了一种设置在第一平面中的第一Z形条状谐振元件的天线。 第一条带谐振元件具有第一和第二相同尺寸和形状的平行的纵向条段。 第一带状共振元件还具有连接第一和第二条带段的对角相对端部的第三段。 天线还具有设置在平行于第一平面的第二平面中的第二Z形条状谐振元件。 第二带状共振元件具有第四和第五相同的尺寸和形状的平行纵向条段。 第二带状谐振元件还具有第六段，其具有与第三段相同的尺寸和相同形状，其连接第四和第五段的对角相对的端部。 第二Z形条状谐振元件设置在第二平面中，使得第六段覆盖所述第三段，并且使得所述第一，第二，第四和第五段覆盖矩形。
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