会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Voltage controlled oscillator tuning by metal lid aperture selection
    • 通过金属盖孔径选择调节压控振荡器
    • US5959503A
    • 1999-09-28
    • US36225
    • 1998-03-06
    • Thomas A. KnechtGlen O. Reeser
    • Thomas A. KnechtGlen O. Reeser
    • H01P7/08H03B1/00H03B5/02H03B5/12H03B5/18H03J5/24H05K5/03
    • H03B5/1847H03B2200/004H03B2201/014H03B2201/0208Y10T29/49004
    • A method (100) for tuning a voltage controlled oscillator by changing electrical circuit parasitics includes a first step (102) of providing a voltage controlled oscillator circuit on a circuit board and a plurality of different metal lids each having different numbers, sizes and locations of holes. Each different lid presents a different electrical circuit parasitic to the voltage controlled oscillator. In a second step (104), the voltage controlled oscillator frequency is measured, and the frequency shift needed to achieve a desired operating frequency is calculated in a third step (106). In a fourth step (108), a lid is chosen that will present the parasitics needed to provide the amount of frequency shift needed. As a last step (110), the chosen lid is attaching to the circuit board to obtain the desired nominal operating frequency from the voltage controlled oscillator.
    • 一种用于通过改变电路寄生效应来调节压控振荡器的方法(100)包括在电路板上提供压控振荡器电路的第一步骤(102)和多个不同的金属盖,每个金属盖具有不同的数量,尺寸和位置 孔。 每个不同的盖子呈现寄生于压控振荡器的不同电路。 在第二步骤(104)中,测量压控振荡器频率,并且在第三步骤(106)中计算达到期望工作频率所需的频移。 在第四步骤(108)中,选择一个盖子,其将呈现提供所需频移量所需的寄生效应。 作为最后一步(110),所选择的盖子附接到电路板以从压控振荡器获得期望的标称工作频率。
    • 3. 发明申请
    • Time Division Duplex Front End Module
    • 时分双工前端模块
    • US20100203922A1
    • 2010-08-12
    • US12701681
    • 2010-02-08
    • Thomas A. KnechtGlen O. Reeser
    • Thomas A. KnechtGlen O. Reeser
    • H04B1/38H04W88/02
    • H04B1/44
    • A front end module for use in a wireless base station such as a picocell includes a housing defining a cavity for a substrate. A first section on the substrate defines a signal transmit path and includes at least the following discrete electronic components: a bandpass filter, a power amplifier, and a coupler. A second section on the substrate defines a signal receive path and includes at least the following discrete electronic components: a bandpass filter and a low-noise amplifier. A switch on the substrate interconnects the first and second sections to an antenna terminal and a wall in the housing extends through a slot in the substrate to isolate the components in the first and second sections. Terminals extend through an exterior wall of the housing and into contact with the substrate.
    • 用于诸如微微小区之类的无线基站的前端模块包括限定用于衬底的空腔的壳体。 衬底上的第一部分限定信号传输路径,并且至少包括以下分立的电子部件:带通滤波器,功率放大器和耦合器。 衬底上的第二部分限定了信号接收路径,并且至少包括以下分立的电子部件:带通滤波器和低噪声放大器。 衬底上的开关将第一和第二部分互连到天线端子,并且壳体中的壁延伸穿过衬底中的狭槽以隔离第一和第二部分中的部件。 端子延伸穿过外壳的外壁并与基板接触。
    • 7. 发明授权
    • Dual frequency voltage controlled oscillator
    • 双频压控振荡器
    • US5856763A
    • 1999-01-05
    • US811997
    • 1997-03-05
    • Glen O. ReeserLunal Khuon
    • Glen O. ReeserLunal Khuon
    • H03B1/00H03B5/12H03B5/20
    • H03B5/1231H03B5/1218H03B5/1243H03B2201/0208H03B2201/025
    • A voltage controlled oscillator (10) operable on two widely separated frequency bands of 800 MHz and 1.9 GHz, for example. The two operable frequency modes are controlled by changing base bias voltages on at least two transistors with commonly connected emitters. A base circuit of each transistor is connected to an independent resonator and tuning element and shares a common feedback reactance. By increasing a base bias voltage of first transistor relative the a second transistor, an associated first base circuit is turned on and allowed to oscillate at a first frequency while a second base circuit is turned off preventing oscillation at a second frequency. Correspondingly, by decreasing the base bias voltage the first base circuit is turned off and the second base circuit is turned on. The transistors share a common collector connection and output providing either one of the two frequencies.
    • 例如,可操作于800MHz和1.9GHz的两个广泛分离的频带上的压控振荡器(10)。 通过在具有共同连接的发射器的至少两个晶体管上改变基极偏置电压来控制两个可操作的频率模式。 每个晶体管的基极电路连接到独立的谐振器和调谐元件,并共享一个共同的反馈电抗。 通过相对于第二晶体管增加第一晶体管的基极偏置电压,相关联的第一基极电路导通并允许以第一频率振荡,而第二基极电路关闭,从而防止在第二频率下的振荡。 相应地,通过降低基极偏置电压,第一基极电路被断开,第二基极电路导通。 晶体管共享共同的集电极连接和输出,提供两个频率之一。