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    • 16. 发明授权
    • Merged-filter multiplexer
    • 合并滤波多路复用器
    • US07710219B2
    • 2010-05-04
    • US12039536
    • 2008-02-28
    • Edward B. Stoneham
    • Edward B. Stoneham
    • H01P5/12H03H7/46
    • H01P1/213H01P1/2135H03D7/02
    • A multiplexer circuit may include a first-frequency-quarter-wavelength transmission line extending between a junction between a common terminal and a second-frequency terminal, and a first-frequency low-impedance circuit electrically directly connecting the first transmission line to a circuit ground. In some examples, a second-frequency-quarter-wavelength transmission line may extend between the first transmission line and a third-frequency terminal. A second-frequency low-impedance circuit may electrically directly connect the second transmission line to the circuit ground. The first and second transmission lines and the first and second low-impedance circuits may provide a third-frequency transmission line. A further second-frequency low-impedance circuit may electrically couple the second terminal to the first transmission line. A third-frequency low-impedance circuit may electrically couple the second terminal to the circuit ground. The first-frequency, further second-frequency, and third-frequency low-impedance circuits and the first transmission line may provide in combination a second-frequency transmission line.
    • 多路复用器电路可以包括在公共端子和第二频率端子之间的连接点之间延伸的第一频率四分之一波长的传输线,以及将第一传输线电连接到电路接地的第一频率低阻抗电路 。 在一些示例中,第二频率四分之一波长的传输线可以在第一传输线和第三频率终端之间延伸。 第二频率低阻抗电路可以将第二传输线电连接到电路接地。 第一和第二传输线以及第一和第二低阻抗电路可以提供第三频率传输线。 另一个第二频率低阻抗电路可以将第二端子电耦合到第一传输线。 第三频率低阻抗电路可以将第二端子电耦合到电路接地。 第一频率,第二频率和第三频率低阻抗电路和第一传输线可以组合提供第二频率传输线。
    • 20. 发明授权
    • Coplanar oscillator circuit structures
    • 共面振荡器电路结构
    • US5821827A
    • 1998-10-13
    • US769144
    • 1996-12-18
    • Clifford A. MohwinkelEdward B. Stoneham
    • Clifford A. MohwinkelEdward B. Stoneham
    • H03B5/18H01P7/08
    • H03B5/1852
    • An oscillator circuit having a flip chip metalization pattern and base substrate metalization pattern is defined such that a common-drain oscillator is configured with the common drain interposed between the source and gate terminals, providing an effective RF common reference with reduced parasitic inductance elements which otherwise degrade oscillator power and phase noise at high frequencies. Multiple sets of such patterns on the substrate and such three-terminal devices on the flip chip are arranged such that conductor patterns on the substrate connecting separately from the gates and the sources of the multiple devices to the common-drain reference are easily configured into separable tuning (or resonator) and feedback circuits. A common-drain oscillator having an interdigitated capacitor coplanar cavity resonator circuit as the gate input circuit having reduced distributed inductance is realized utilizing the interposed common-drain connections provided thereby. Having many small devices, such as FETs, coupled closely together (each having very low parasitic and therefore very high potential operating frequency), the signal power of each adds arithmetically but the noise power adds statistically thereby achieving lower phase noise relative to the combined oscillator signal power. Circuit structures utilizing this invention can provide very large oscillator arrays providing a reduction in phase noise relative to the oscillation signal without having the usual device size limitations.
    • 定义了具有倒装芯片金属化图案和基底金属化图案的振荡器电路,使得公共漏极振荡器配置有插入在源极和栅极端子之间的公共漏极,从而提供有效的RF公共参考,其中减少的寄生电感元件 在高频下降低振荡器功率和相位噪声。 衬底上的多组这样的图案和倒装芯片上的这样的三端器件被布置成使得与栅极和多个器件的源极分开连接到衬底的衬底上的导体图案容易地配置成可分离 调谐(或谐振器)和反馈电路。 使用由此提供的插入式共漏极连接,实现了具有分叉电容器共面空腔谐振器电路的共漏极振荡器作为具有降低的分布电感的栅极输入电路。 具有诸如FET的许多小器件(每个具有非常低的寄生因素,因此具有非常低的寄生电位,因此具有非常高的潜在工作频率),每个信号功率都是算术的,但是噪声功率统计地增加,从而相对于组合振荡器实现较低的相位噪声 信号功率 利用本发明的电路结构可以提供非常大的振荡器阵列,其提供相对于振荡信号的相位噪声的降低,而不需要通常的器件尺寸限制。