公开(公告)号：US5965494A

公开(公告)日：1999-10-12

申请号：US653270

申请日：1996-05-24

申请人： Yoshiaki Terashima ,  Hisashi Yoshino ,  Hiroyuki Kayano ,  Tadahiko Maeda

发明人： Yoshiaki Terashima ,  Hisashi Yoshino ,  Hiroyuki Kayano ,  Tadahiko Maeda

IPC分类号： H01P1/203 ,  H01P7/08 ,  H01L12/02

CPC分类号： H01P1/20363 ,  H01P7/088 ,  Y10S505/70 ,  Y10S505/701 ,  Y10S505/866

摘要： A first electrically conductive layer whose thickness is equal to or smaller than the skin depth of the radio wave used for communication, a dielectric layer whose permittivity is changed by application of electric field, and a second electrically conductive layer whose thickness is equal to or smaller than the skin depth of the radio wave used for communication are sequentially stacked near a resonance element which is formed on the front surface of a dielectric substrate having a ground layer formed on the rear surface thereof. The effective permittivity of the dielectric layer is changed in a wide range by changing a voltage applied between the first and second electrically conductive layers to change the electric field applied to the dielectric layer. As a result, the impedance of the resonance element is changed, and when a plurality of resonance elements are arranged closely to each other to construct a filter, the coupling degree between the resonance elements is changed. Therefore, characteristics such as the resonance frequency of the resonator and the pass-band frequency of the filter are controlled by controlling a voltage to be applied.

摘要翻译： 厚度等于或小于用于通信的无线电波的趋肤深度的第一导电层，其介电常数通过施加电场而改变的介电层，以及厚度等于或小于其的第二导电层 比用于通信的无线电波的皮肤深度依次层叠在形成在其后表面上形成有接地层的电介质基板的前表面上的谐振元件附近。 通过改变施加在第一和第二导电层之间的电压来改变施加到电介质层的电场，介电层的有效介电常数在宽范围内变化。 结果，谐振元件的阻抗发生变化，并且当多个谐振元件彼此紧密配置以构成滤波器时，谐振元件之间的耦合度改变。 因此，通过控制要施加的电压来控制谐振器的谐振频率和滤波器的通带频率等特性。

公开(公告)号：US06985054B2

公开(公告)日：2006-01-10

申请号：US10704146

申请日：2003-11-10

申请人： Spartak Gevorgian ,  Erland Wikborg

发明人： Spartak Gevorgian ,  Erland Wikborg

IPC分类号： H01P7/08 ,  H01L12/02

CPC分类号： H01G7/06

摘要： The present invention relates to an electrically controllable/tunable microwave device comprising a ferroelectric substrate with a variable dielectric permitivity and conducting electrodes, arranged on said substrate, and the capacitance of which depends on applied voltage C/V), the microwave device comprises at least two sections or parts of the substrate/electrodes for each of which different electrical field strengths are generated upon voltage application. Said generated electrical field strengths are controlled by means of the design of the device and/or the voltage application such that the slope (dC(dV) of the voltage dependence of the capacitance (C(V) of the microwave device can be controlled.

摘要翻译： 本发明涉及一种电控制/可调谐微波器件，其包括布置在所述衬底上的具有可变介电常数的铁电衬底和导电电极，其电容取决于所施加的电压C / V），所述微波器件至少包括 基板/电极的两个部分或部分，其中每一个在施加电压时产生不同的电场强度。 通过设备的设计和/或电压施加来控制所产生的电场强度，使得能够控制微波装置的电容（C（V））的电压依赖性的斜率（dC（dV））。