公开(公告)号：US20040202395A1

公开(公告)日：2004-10-14

申请号：US10735070

申请日：2003-12-12

Applicant: HRL LABORATORIES, LLC.

Inventor： Daniel Yap ,  Peter Petre ,  Joseph S. Colburn

IPC: G02F001/01

CPC classification number: G02F1/011 ,  G02F2203/15

Abstract: The present invention provides a RF-lightwave modulator with improved efficiency by making use of a broken loop resonator having a gap therein. In the present invention a RF input signal is coupled into a broken loop resonator, thereby producing a RF output signal. An optical modulator connected across the gap receives the RF output signal and modulates a lightwave with the RF output signal to produce a RF modulated lightwave. Because the optical modulator is connected across the gap in the broken loop resonator, the voltage of the RF output signal applied to the optical modulator will be greater than the voltage of the RF input signal applied to the broken loop resonator.

Abstract translation: 本发明通过利用其中具有间隙的断环谐振器来提供具有提高的效率的RF光波调制器。 在本发明中，RF输入信号被耦合到断环谐振器中，从而产生RF输出信号。 连接在间隙上的光调制器接收RF输出信号并用RF输出信号调制光波以产生RF调制光波。 由于光学调制器跨过断环谐振器的间隙连接，所以施加到光调制器的RF输出信号的电压将大于施加到断环谐振器的RF输入信号的电压。

公开(公告)号：US20040075967A1

公开(公告)日：2004-04-22

申请号：US10421302

申请日：2003-04-22

Applicant: HRL LABORATORIES, LLC

Inventor： Jonathan J. Lynch ,  Sarabjit Mehta ,  John Pasiecznik ,  Peter Petre

IPC: H01G005/00

CPC classification number: H01G5/18 ,  H01G5/015 ,  H01G5/16 ,  H01P5/04 ,  H03J3/20 ,  H03J2200/39

Abstract: A device for varying the capacitance of an electronic circuit is disclosed. The device comprises a flexible membrane located above the electronic circuit, a metal layer connected to the flexible membrane, and bias circuitry located above the membrane. Variation of the capacitance of the electronic circuit is obtained by pulling the membrane upwards by means of the bias circuitry. The disclosed device provides a sizeable capacitance variation and high Q factor, resulting in overall low filter insertion loss. A nearly constant group delay over a wide operating bandwidth is also obtained.

Abstract translation: 公开了一种用于改变电子电路的电容的装置。 该装置包括位于电子电路上方的柔性膜，连接到柔性膜的金属层和位于膜上方的偏置电路。 电子电路的电容的变化是通过利用偏置电路向上拉膜来获得的。 所公开的器件提供相当大的电容变化和高Q因子，导致总体上低的滤波器插入损耗。 也获得了在宽工作带宽上几乎恒定的组延迟。