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    • 1. 发明授权
    • Method and apparatus of minimizing extrinsic parasitic resistance in 60 GHz power amplifier circuits
    • 最小化60 GHz功率放大器电路中外部寄生电阻的方法和装置
    • US08406710B1
    • 2013-03-26
    • US13243986
    • 2011-09-23
    • Zaw Soe
    • Zaw Soe
    • H01Q11/12H04K3/00
    • H01Q11/12
    • Very high frequency circuits suffer from parasitic resistances. At 60 GHz, conventional layout techniques can introduce loss into the circuit at critical locations. One critical interconnect between the output of a pre-driver and the gate of the final output stage causes 1 or 2 dB of loss due to the layout. By minimizing the number of via contacts, this conventional loss can be recovered using this new layout technique. In addition, a tap point of a via stack is used to modify the resonant characteristics of the interconnect. Finally, cross coupled devices in a resonant circuit are used to reduce the common mode noise at the expense of the common mode gain.
    • 超高频电路遭受寄生电阻。 在60GHz,传统的布局技术可以在关键位置引入电路损耗。 预驱动器的输出和最终输出级的栅极之间的一个关键互连会导致由于布局导致1或2 dB的损耗。 通过最小化通孔触点的数量,可以使用这种新的布局技术来恢复传统的损耗。 此外,使用通孔堆叠的抽头点来修改互连的谐振特性。 最后,谐振电路中的交叉耦合器件用于以共模增益为代价来降低共模噪声。
    • 3. 发明授权
    • Broadband antenna structures
    • 宽带天线结构
    • US06965348B2
    • 2005-11-15
    • US10878909
    • 2004-06-28
    • Frank M. CaimiSean F. Sullivan
    • Frank M. CaimiSean F. Sullivan
    • H01Q1/36H01Q9/27H01Q11/12H01Q13/20H01Q1/00H01Q9/00
    • H01Q9/27H01Q1/36H01Q11/12H01Q13/20
    • There is disclosed an antenna exhibiting resonance over a broad frequency band or over a plurality of closely-spaced frequency bands, comprising a ground plane, a non-driven element affixed substantially perpendicular to the ground plane, a driven element affixed substantially perpendicular to the ground plane and a horizontal conductor electrically connected between the driven and the non-driven elements and disposed substantially parallel to the ground plane. The non-driven and the driven elements further comprise periodic slow wave structures. The periodic slow wave structures are configured to provide a substantially constant propagation factor with respect to the applied signal frequency, such that the antenna exhibits broad resonance characteristics.
    • 公开了一种在宽频带上或多个紧密间隔的频带上呈现谐振的天线,包括接地平面,基本上垂直于接地平面固定的非驱动元件,基本上垂直于地面固定的从动元件 平面和水平导体,电连接在被驱动元件和非驱动元件之间,并且基本上平行于接地平面设置。 非驱动和从动元件还包括周期性的慢波结构。 周期性慢波结构被配置为相对于所施加的信号频率提供基本上恒定的传播因子,使得天线具有宽的谐振特性。
    • 4. 发明申请
    • Broadband antenna structures
    • 宽带天线结构
    • US20040233115A1
    • 2004-11-25
    • US10878909
    • 2004-06-28
    • Frank M. CaimiSean F. Sullivan
    • H01Q011/12H01Q001/36
    • H01Q9/27H01Q1/36H01Q11/12H01Q13/20
    • There is disclosed an antenna exhibiting resonance over a broad frequency band or over a plurality of closely-spaced frequency bands, comprising a ground plane, a non-driven element affixed substantially perpendicular to the ground plane, a driven element affixed substantially perpendicular to the ground plane and a horizontal conductor electrically connected between the driven and the non-driven elements and disposed substantially parallel to the ground plane. The non-driven and the driven elements further comprise periodic slow wave structures. The periodic slow wave structures are configured to provide a substantially constant propagation factor with respect to the applied signal frequency, such that the antenna exhibits broad resonance characteristics.
    • 公开了一种在宽频带上或多个紧密间隔的频带上呈现谐振的天线,包括接地平面,基本上垂直于接地平面固定的非驱动元件,基本上垂直于地面固定的从动元件 平面和水平导体,电连接在被驱动元件和非驱动元件之间,并且基本上平行于接地平面设置。 非驱动和从动元件还包括周期性的慢波结构。 周期性慢波结构被配置为相对于所施加的信号频率提供基本上恒定的传播因子,使得天线具有宽的谐振特性。
    • 6. 发明授权
    • Radio-frequency power amplifier of mobile communication equipment
    • 射频功率放大器的移动通信设备
    • US06259901B1
    • 2001-07-10
    • US09203642
    • 1998-12-01
    • Yoshitaka ShinomiyaTakeshi Imai
    • Yoshitaka ShinomiyaTakeshi Imai
    • H01Q1112
    • H01Q11/12H04B2001/0416
    • A radio-frequency power amplifier of mobile communication equipment includes a differential amplifier arranged to balanced-input and amplify a radio-frequency signal delivered from a frequency converter of a transmission system of the mobile communication equipment located downstream of a modulator of the transmission system. The radio-frequency signal delivered from the differential amplifier is further amplified and balanced-output by a push-pull circuit. The differential amplifier and the push-pull circuit are respectively supplied with bias currents varying in dependence on a gain control signal, whereby respective amplification gains of the differential amplifier and the push-pull circuit are variably adjusted.
    • 移动通信设备的射频功率放大器包括:差分放大器,用于平衡输入和放大从位于传输系统的调制器下游的移动通信设备的传输系统的变频器传送的射频信号。 从差分放大器传送的射频信号被推挽电路进一步放大和平衡输出。 差分放大器和推挽电路分别被提供根据增益控制信号而变化的偏置电流,从而可变地调节差分放大器和推挽电路的各自的放大增益。
    • 7. 发明授权
    • Power amplifier load controller and method for controlling a power amplifier load
    • 功率放大器负载控制器和控制功率放大器负载的方法
    • US06252456B1
    • 2001-06-26
    • US09364226
    • 1999-07-29
    • Michael H. BakerWilliam J. Turney
    • Michael H. BakerWilliam J. Turney
    • H03F2100
    • H01Q11/12
    • The present invention addresses the need for an apparatus and method for controlling the load of a PA, to improve PA efficiency in linear transmitters with isolator elimination (IE) circuitry, that does not require the use of high frequency RF circuitry. The present invention provides a PA load controller (130, 131) that improves the efficiency of a PA (116) by adjusting the PA load using an AGC signal (134), a level set adjustment signal (132), and a signal strength indicator (135), these three signals are readily obtained from continuous gain and phase adjustment circuitry (e.g., 102). The load controller determines a phase of the PA load that minimizes the AGC signal and a phase of the PA load that maximizes the level set adjustment signal. From these determinations, the PA load controller determines a phase of the PA load that improves the efficiency of the PA and adjusts the PA load phase accordingly.
    • 本发明解决了对用于控制PA的负载的装置和方法的需求,以提高不需要使用高频RF电路的隔离器消除(IE)电路的线性发射机中的PA效率。 本发明提供一种通过使用AGC信号(134),电平设定调整信号(132)和信号强度指示器(132)来调节PA负载来提高PA(116)的效率的PA负载控制器(130,131) (135),这三个信号很容易从连续增益和相位调整电路(例如102)获得。 负载控制器确定最大化AGC信号的PA负载的相位和使电平设置调整信号最大化的PA负载的相位。 从这些确定中,PA负载控制器确定PA负载的相位,从而提高PA的效率并相应地调节PA负载相位。
    • 8. 发明授权
    • Low-profile adjustable-band antenna
    • 低调可调带天线
    • US06188371B1
    • 2001-02-13
    • US09358091
    • 1999-07-21
    • Kevin LiBrian Louis WixomLeon Chia-Liang LinThomas Stanley Seay
    • Kevin LiBrian Louis WixomLeon Chia-Liang LinThomas Stanley Seay
    • H01Q1112
    • H01Q11/12H01Q9/0421H01Q9/0442
    • A low-profile antenna includes a ground-plane element defining a ground plane and an elongated radiator element configured and disposed in relation to the ground plane to define a vertical loop when the ground plane is horizontally disposed. A substantial broad segment of the radiator element is parallel to the ground plane. One end of the radiator element is connected to the ground-plane element and another end of the radiator element having spaced-apart legs with feet is capacitively coupled to the ground-plane element by dielectric spacing elements that are disposed between the feet of the radiator element and the ground-plane element. A conductive-material layer contacts the feet between the feet and the dielectric spacing element. An exposed portion of the conductive-material layer that extends from beneath the feet of the radiator element includes removal tabs for enabling the capacitive coupling to be adjusted by removing at least some of the exposed tabs. The adjustable capacitive coupling and the dimensions and configuration of the radiator element are such as to enable the radiator element to resonate within an adjustable band of frequencies within a predetermined range of frequencies. A tuning circuit is coupled to the radiator element for selectively enabling the antenna to transmit signals at a first frequency within the adjustable frequency band or to receive signals at a second frequency within said band. The radiator element includes longitudinal folds distending from the sides of the substantial broad segment.
    • 低剖面天线包括限定接地平面的接地平面元件和相对于接地平面配置和设置的细长散热器元件,以在接地平面水平设置时限定垂直环路。 散热器元件的实质宽段平行于接地平面。 散热器元件的一端连接到接地平面元件,并且散热元件的具有带脚的间隔开的腿的另一端通过设置在散热器的脚之间的介电间隔元件电容耦合到接地平面元件 元件和地平面元件。 导电材料层接触脚和介电间隔元件之间的脚。 导电材料层的从散热器元件的底部下方延伸的暴露部分包括移除接头,用于通过去除至少一些暴露的接头来调节电容耦合。 可调节的电容耦合以及散热器元件的尺寸和结构使得散热器元件能够在预定频率范围内的可调频带范围内谐振。 调谐电路耦合到散热器元件,用于选择性地使得天线以可调频带内的第一频率发送信号,或者以所述频带内的第二频率接收信号。 散热器元件包括从实质宽段的侧面膨胀的纵向折叠。
    • 10. 发明授权
    • Antenna for a wireless communication module
    • 天线用于无线通信模块
    • US6133886A
    • 2000-10-17
    • US345863
    • 1999-07-01
    • Patrick L. FarielloGlenn R. Nelson
    • Patrick L. FarielloGlenn R. Nelson
    • H01Q1/24H01Q1/52H01Q7/00H01Q11/12H05K1/02H05K1/18
    • H01Q11/12H01Q1/241H01Q1/52H01Q7/00H05K1/0243H05K1/181
    • An antenna (28) for use in a wireless communication module (10) includes a shield plate (40), an antenna loop element (42), and a transmission line element (44). The wireless communication module (10) also includes a receiver (37) having a circuit board (30). The shield plate (40) is located on a first side (32) of the circuit board (30); and the antenna loop element (42) and the transmission line element (44) are located on an opposite side (34) of the circuit board (30). The shield plate (40) is electrically connected to a first loop end (50) of the antenna loop element (42). A capacitor (64) interconnects a second loop end (52) of the antenna loop element (42) to a first transmission line end (58) of the transmission line element (44). A second transmission line end (60) is electrically open.
    • 一种用于无线通信模块(10)的天线(28)包括屏蔽板(40),天线环路元件(42)和传输线路元件(44)。 无线通信模块(10)还包括具有电路板(30)的接收器(37)。 屏蔽板(40)位于电路板(30)的第一侧(32)上; 并且天线环路元件(42)和传输线路元件(44)位于电路板(30)的相对侧(34)上。 屏蔽板(40)电连接到天线回路元件(42)的第一环路端(50)。 电容器(64)将天线环形元件(42)的第二环形端(52)与传输线元件(44)的第一传输线端(58)互连。 第二传输线端(60)是电开的。