公开(公告)号：US5872489A

公开(公告)日：1999-02-16

申请号：US848137

申请日：1997-04-28

Applicant: Mau Chung F. Chang ,  Henry O. Marcy, 5th ,  Deepak Mehrotra ,  Kenneth D. Pedrotti ,  David R. Pehlke ,  Charles W. Seabury ,  Jun J. Yao ,  James L. Bartlett ,  J. L. Julian Tham

Inventor： Mau Chung F. Chang ,  Henry O. Marcy, 5th ,  Deepak Mehrotra ,  Kenneth D. Pedrotti ,  David R. Pehlke ,  Charles W. Seabury ,  Jun J. Yao ,  James L. Bartlett ,  J. L. Julian Tham

IPC: B81C3/00 ,  H01H59/00 ,  H01L27/06 ,  H03B1/00 ,  H03B5/12 ,  H03F1/26 ,  H03F1/56 ,  H03B5/08 ,  H03F3/04 ,  H03J5/24

CPC classification number: H03F1/565 ,  H01L27/0611 ,  H03B5/1256 ,  H03F1/26 ,  H03F3/195 ,  H01H59/0009 ,  H03B2201/012 ,  H03B2201/0208 ,  H03B2201/0216 ,  H03B2201/025 ,  H03F2200/294 ,  H03F2200/372 ,  H03J2200/10 ,  H03J2200/15

Abstract: An integrated, tunable inductance network features a number of fixed inductors fabricated on a common substrate along with a switching network made up of a number of micro-electromechanical (MEM) switches. The switches selectably interconnect the inductors to form an inductance network having a particular inductance value, which can be set with a high degree of precision when the inductors are configured appropriately. The preferred MEM switches introduce a very small amount of resistance, and the inductance network can thus have a high Q. The MEM switches and inductors can be integrated using common processing steps, reducing parasitic capacitance problems associated with wire bonds and prior art switches, increasing reliability, and reducing the space, weight and power requirements of prior art designs. The precisely tunable high-Q inductance network has wide applicability, such as in a resonant circuit which provides a narrow bandwidth frequency response which peaks at a specific predetermined frequency, making possible a highly selective performance low noise amplifier (LNA), or in an oscillator circuit so that a precise frequency of oscillation can be generated and changed as needed.

Abstract translation: 集成的可调电感网络具有在由公共基板上制造的多个固定电感器以及由多个微机电（MEM）开关组成的开关网络。 开关可选地互连电感器以形成具有特定电感值的电感网络，当电感器被适当地配置时，可以以高精度设置电感网络。 优选的MEM开关引入非常少量的电阻，因此电感网络可以具有高Q.MEM开关和电感器可以使用常规的处理步骤进行集成，减少与引线键合和现有技术开关相关联的寄生电容问题，增加 可靠性，并减少现有技术设计的空间，重量和功率要求。 精确可调谐的高Q电感网络具有广泛的适用性，例如在谐振电路中，其提供以特定预定频率峰值的窄带宽频率响应，使高选择性性能低噪声放大器（LNA）或振荡器 使得可以根据需要产生和改变振荡的精确频率。

公开(公告)号：US5373262A

公开(公告)日：1994-12-13

申请号：US009854

申请日：1993-01-27

Applicant: Hiroyuki Yamamoto ,  Atsushi Inoue ,  Tatsuo Bizen

Inventor： Hiroyuki Yamamoto ,  Atsushi Inoue ,  Tatsuo Bizen

IPC: H01P7/08 ,  H03B1/00 ,  H03B5/18 ,  H01P7/10

CPC classification number: H03B5/1852 ,  H03B2201/011 ,  H03B2201/012 ,  H03B2201/014 ,  H03B5/1805 ,  H03B5/1876

Abstract: In a voltage controlled oscillator, a dielectric resonator is mounted on a circuit board and a metal case is mounted on the circuit board to shield the dielectric resonator. The dielectric resonator comprises a C-shaped first electrode which is provided in a dielectric body, second and third electrodes which are arranged on upper and lower sides of the first electrode, a signal connecting pattern which is extended from the first electrode toward a side surface of the dielectric body, and earth connecting patterns which are extended from the first, second and third electrodes toward the side surface of the dielectric body, to provide predetermined impedance between the earth connecting pattern and the signal connecting pattern. The dielectric resonator is arranged with the second and third electrodes in parallel with a major surface of the circuit board, and the second electrode is upwardly exposed. A portion of the second electrode portion at a predetermined position is adapted to be trimmed so as to regulate the resonance frequency of the dielectric resonator, so as to regulate the oscillator frequency of the voltage controlled oscillator. The dielectric resonator can be miniaturized with no reduction of its Q-value.

Abstract translation: 在压控振荡器中，电介质谐振器安装在电路板上，金属外壳安装在电路板上以屏蔽介质谐振器。 介质谐振器包括设置在电介质体中的C形第一电极，布置在第一电极的上侧和下侧的第二和第三电极，从第一电极朝向侧表面延伸的信号连接图案 以及从第一，第二和第三电极延伸到电介质体的侧表面的接地连接图案，以在接地连接图案和信号连接图案之间提供预定的阻抗。 介质谐振器被布置成具有与电路板的主表面平行的第二和第三电极，并且第二电极被向上暴露。 第二电极部分在预定位置处的一部分适于修整以调节介质谐振器的谐振频率，从而调节压控振荡器的振荡器频率。 介质谐振器可以小型化，而不降低其Q值。