公开(公告)号：US07123115B2

公开(公告)日：2006-10-17

申请号：US10914424

申请日：2004-08-09

Applicant: Cornelis Frederik du Toit

Inventor： Cornelis Frederik du Toit

IPC: H01P1/18

CPC classification number: H01P1/181

Abstract: An embodiment of the present invention provides a phase shifter, comprising: a base dielectric layer; a tunable dielectric layer overlaying at least a portion of the base dielectric layer; and at least two conductors overlaying at least a portion of the tunable dielectric layer, the at least two conductors positioned so as to form a slot-line topology. In an embodiment of the present invention the slot-line may be between 2 μm and 5 μm wide and the tunable dielectric layer may be between 0.3 μm to 1.5 μm thick. Further, the slot-line topology may be a uniform slot-line topology throughout the length of the at least two conductors and the slot-line topology may have an edge ratio defined by r=Llow/(Llow+Lhigh). The edge ratio may be optimized for minimizing metal loss and minimizing dielectric loss for a given phase shifter length. In an embodiment of the present invention the value of r may be between 0.1 and 0.2.

Abstract translation: 本发明的实施例提供了一种移相器，包括：基极电介质层; 覆盖所述基极介质层的至少一部分的可调电介质层; 以及至少两个导体，其覆盖所述可调电介质层的至少一部分，所述至少两个导体定位成形成槽线拓扑。 在本发明的一个实施方案中，槽线可以在2μm和5μm宽之间，并且可调电介质层可以在0.3μm至1.5μm厚之间。 此外，时隙线拓扑可以是在至少两个导体的整个长度上的均匀的时隙线拓扑，并且时隙线拓扑结构可以具有由r = L _{低低+ L高高）。 可以优化边缘比率以最小化金属损耗并且使给定移相器长度的介电损耗最小化。 在本发明的一个实施方案中，r的值可以在0.1和0.2之间。}

公开(公告)号：US20050110686A1

公开(公告)日：2005-05-26

申请号：US10914544

申请日：2004-08-09

Applicant: Cornelis Frederik du Toit

Inventor： Cornelis Frederik du Toit

IPC: H01Q20060101 ,  H01Q1/38

CPC classification number: H01Q9/0414 ,  H01Q19/005

Abstract: A stacked antenna, comprising an upper patch including at least one strip-like part formed from a hole in the upper patch and at least one slot-like part formed from at least one notch in the upper patch; a lower patch including at least one strip-like part formed from a hole in the lower patch and at least one slot-like part formed from at least one notch in the lower patch; and wherein the at least one strip-like part of the upper patch is at least partially crossing over the at least one notch in the lower patch In and embodiment of the present invention, the a portion of the at least one strip-like part of the lower patch is at least partially crossing under a hole in the upper patch and may further comprise at least one microstrip feed capable of connecting a ground plane with the lower patch.

Abstract translation: 一种叠层天线，包括上片，其包括由上片中的孔形成的至少一个条状部分和由上贴片中的至少一个凹口形成的至少一个狭缝状部分; 下部贴片，包括由下部贴片中的孔形成的至少一个条状部分和由下部贴片中的至少一个凹口形成的至少一个狭缝状部分; 并且其中所述上贴片的所述至少一个条状部分至少部分地与所述下贴片中的所述至少一个切口部分交叉。在本发明的实施例中，所述至少一个条形部分的一部分 下部贴片在上部贴片的孔下方至少部分交叉，并且还可以包括至少一个能够将接地平面与下部贴片连接的微带馈线。

公开(公告)号：US06864843B2

公开(公告)日：2005-03-08

申请号：US10641835

申请日：2003-08-14

Applicant: Cornelis Frederik du Toit ,  Ernest P. Ekelman

Inventor： Cornelis Frederik du Toit ,  Ernest P. Ekelman

IPC: H01Q9/04 ,  H01Q1/38

CPC classification number: H01Q9/0442

Abstract: A tunable patch antenna is described herein that includes a ground plane on which there is located a substrate and on which there is located a patch. The patch is split into two parts (e.g., rectangular parts) which are connected to one another by one or more voltage-tunable series capacitors. Each part has a radiating edge which is connected to one or more voltage-tunable edge capacitors. Also described herein, is a method for electronically tuning the tunable patch antenna to any frequency within a band of operation which is in a range of about 30% of the center frequency of operation.

Abstract translation: 本文描述了一种可调谐贴片天线，其包括接地平面，在该平面上定位有衬底，并且其上设有贴片。 该贴片被分成两部分（例如，矩形部分），它们通过一个或多个电压可调谐串联电容彼此连接。 每个部件具有连接到一个或多个电压可调边缘电容器的辐射边缘。 这里还描述了一种用于将可调谐贴片天线电子调谐到在中心频率操作的约30％的范围内的操作频带内的任何频率的方法。

公开(公告)号：US06759918B2

公开(公告)日：2004-07-06

申请号：US10456683

申请日：2003-06-06

Applicant: Cornelis Frederik du Toit ,  Deirdre A. Ryan

Inventor： Cornelis Frederik du Toit ,  Deirdre A. Ryan

IPC: H03H1130

CPC classification number: H01P5/028 ,  H01P5/04 ,  H01Q1/242 ,  H03F1/56 ,  H03F3/60 ,  H03H7/40 ,  H04B1/0458

Abstract: An impedance matching circuit includes a conductor line having an input port and an output port, a ground conductor, a tunable dielectric material positioned between a first section of the conductor line and the ground conductor, a non-tunable dielectric material positioned between a second section of the conductor line and the ground conductor, and means for applying a DC voltage between the conductor line and the ground conductor. The impedance matching circuit may alternatively include a first planar ground conductor, a second planar ground conductor, a strip conductor having an input port and an output port, and positioned between the first and second planar ground conductors to define first and second gaps, the first gap being positioned between the strip conductor and the first planar ground conductor and the second gap being positioned between the strip conductor and the second planar ground conductor. A non-tunable dielectric material supports the first and second planar ground conductors and the strip conductor in the same plane. A connection is provided for applying a DC voltage between the strip conductor and the first and second planar ground conductors. A plurality of tunable dielectric layer sections are positioned between the strip conductor and the first and second planar ground conductors so as to bridge the gaps between the said first and second planar ground conductors and the strip conductor at a plurality of locations, leaving non-bridged sections in between, defining a plurality of alternating bridged and non-bridged co-planar waveguide sections.

Abstract translation: 阻抗匹配电路包括具有输入端口和输出端口的导线，接地导体，位于导体线的第一部分与接地导体之间的可调电介质材料，位于第二部分之间的不可调电介质材料 的导体线和接地导体，以及用于在导体线和接地导体之间施加直流电压的装置。 阻抗匹配电路可以可选地包括第一平面接地导体，第二平面接地导体，具有输入端口和输出端口的带状导体，并且定位在第一和第二平面接地导体之间以限定第一和第二间隙，第一 间隙位于带状导体和第一平面接地导体之间，第二间隙位于带状导体和第二平面接地导体之间。 不可调电介质材料在同一平面内支撑第一和第二平面接地导体和带状导体。 提供了一种用于在带状导体与第一和第二平面接地导体之间施加直流电压的连接。 多个可调电介质层部分位于带状导体和第一和第二平面接地导体之间，以便在多个位置处桥接所述第一和第二平面接地导体与带状导体之间的间隙，留下非桥接 限定多个交替的桥接和非桥接的共面波导部分。

公开(公告)号：US07969257B2

公开(公告)日：2011-06-28

申请号：US12077139

申请日：2008-03-17

Applicant: Cornelis Frederik du Toit ,  Deirdre A Ryan

Inventor： Cornelis Frederik du Toit ,  Deirdre A Ryan

IPC: H03H7/38

CPC classification number: H01P5/028 ,  H01P5/04 ,  H01Q1/242 ,  H03F1/56 ,  H03F3/60 ,  H03H7/40 ,  H04B1/0458

Abstract: An embodiment of the present invention provides an apparatus, comprising a power amplifier with a tunable impedance matching circuit including a plurality of tunable dielectric varactors and a DC voltage source interface capable of providing voltage to said plurality of saud tunable dielectric varactors.

Abstract translation: 本发明的实施例提供了一种装置，包括具有可调阻抗匹配电路的功率放大器，该可调阻抗匹配电路包括多个可调谐介电变容二极管和能够向所述多个可调谐可变介电变容二极管提供电压的直流电压源接口。

公开(公告)号：US20080169874A1

公开(公告)日：2008-07-17

申请号：US12077139

申请日：2008-03-17

Applicant: Cornelis Frederik du Toit ,  Deirdre A. Ryan

Inventor： Cornelis Frederik du Toit ,  Deirdre A. Ryan

IPC: H03F3/60

CPC classification number: H01P5/028 ,  H01P5/04 ,  H01Q1/242 ,  H03F1/56 ,  H03F3/60 ,  H03H7/40 ,  H04B1/0458

Abstract: An embodiment of the present invention provides an apparatus, comprising a power amplifier with a tunable impedance matching circuit including a plurality of tunable dielectric varactors and a DC voltage source interface capable of providing voltage to said plurality of saud tunable dielectric varactors.

Abstract translation: 本发明的实施例提供了一种装置，包括具有可调阻抗匹配电路的功率放大器，该可调阻抗匹配电路包括多个可调谐介电变容二极管和能够向所述多个可调谐可变介电变容二极管提供电压的直流电压源接口。

公开(公告)号：US06590468B2

公开(公告)日：2003-07-08

申请号：US09909187

申请日：2001-07-19

Applicant: Cornelis Frederik du Toit ,  Deirdre A. Ryan

Inventor： Cornelis Frederik du Toit ,  Deirdre A. Ryan

IPC: H03H1130

CPC classification number: H01P5/028 ,  H01P5/04 ,  H01Q1/242 ,  H03F1/56 ,  H03F3/60 ,  H03H7/40 ,  H04B1/0458

Abstract: An impedance matching circuit includes a conductor line having an input port and an output port, a ground conductor, a tunable dielectric material positioned between a first section of the conductor line and the ground conductor, a non-tunable dielectric material positioned between a second section of the conductor line and the ground conductor, and means for applying a DC voltage between the conductor line and the ground conductor. The impedance matching circuit may alternatively include a first planar ground conductor, a second planar ground conductor, a strip conductor having an input port and an output port, and positioned between the first and second planar ground conductors to define first and second gaps, the first gap being positioned between the strip conductor and the first planar ground conductor and the second gap being positioned between the strip conductor and the second planar ground conductor. A non-tunable dielectric material supports the first and second planar ground conductors and the strip conductor in the same plane. A connection is provided for applying a DC voltage between the strip conductor and the first and second planar ground conductors. A plurality of tunable dielectric layer sections are positioned between the strip conductor and the first and second planar ground conductors so as to bridge the gaps between the said first and second planar ground conductors and the strip conductor at a plurality of locations, leaving non-bridged sections in between, defining a plurality of alternating bridged and non-bridged co-planar waveguide sections.

公开(公告)号：US20080169995A1

公开(公告)日：2008-07-17

申请号：US12077140

申请日：2008-03-17

Applicant: Cornelis Frederik du Toit ,  Deirdre A. Ryan

Inventor： Cornelis Frederik du Toit ,  Deirdre A. Ryan

IPC: H01Q1/50 ,  H03H7/40

CPC classification number: H01P5/028 ,  H01P5/04 ,  H01Q1/242 ,  H03F1/56 ,  H03F3/60 ,  H03H7/40 ,  H04B1/0458

Abstract: An embodiment of the present invention provides a power amplifier, comprising tunable impedance matching circuit including a plurality of tunable dielectric varactors and a DC voltage source interface capable of providing voltage to said plurality of said tunable dielectric varactors.

Abstract translation: 本发明的实施例提供了一种功率放大器，包括可调阻抗匹配电路，其包括多个可调谐介电变容二极管和能够向所述多个可调谐介电变容二极管提供电压的直流电压源接口。

公开(公告)号：US07106255B2

公开(公告)日：2006-09-12

申请号：US10914580

申请日：2004-08-09

Applicant: Cornelis Frederik du Toit

Inventor： Cornelis Frederik du Toit

IPC: H01Q1/24

CPC classification number: H01Q9/0414 ,  H01Q19/005

Abstract: A stacked antenna comprising a first patch including at least one slot-like part thereon, a second patch including at least one strip-like part thereon; and wherein the at least one slot-like part of the first patch at least partially crosses over or partially crosses under the at least one strip-like part of the second patch thereby forming a coupling region. The at least one slot-like part may be formed by at least one notch in the first patch and the at least one strip-like part may be formed by at least one hole in the second patch.

Abstract translation: 一种堆叠天线，包括：第一贴片，其上包括至少一个狭缝状部分，第二贴片，其上包括至少一个条形部件; 并且其中所述第一贴片的所述至少一个狭缝状部分至少部分地跨过所述第二贴片的所述至少一个条状部分的上方或部分地交叉，从而形成耦合区域。 至少一个槽状部分可以由第一贴片中的至少一个凹口形成，并且至少一个条状部分可以由第二贴片中的至少一个孔形成。

公开(公告)号：US20120119844A1

公开(公告)日：2012-05-17

申请号：US13302649

申请日：2011-11-22

Applicant: Cornelis Frederik du Toit ,  Deirdre A. Ryan

Inventor： Cornelis Frederik du Toit ,  Deirdre A. Ryan

IPC: H03H7/38

CPC classification number: H03H7/40 ,  H01P5/04 ,  H01Q1/242 ,  H01Q1/50 ,  H03F1/56 ,  H03F3/60 ,  H03H7/38 ,  H04B1/0458

Abstract: A variable impedance circuit includes a matching network for coupling to a tunable device, where the matching network has a first port and a second port, where the tunable device is coupled to one of the first port or the second port, and where the matching network has one or more variable dielectric capacitors. The one or more variable dielectric capacitors can be operable to receive a first of one or more variable voltage signals to cause the one or more variable dielectric capacitors to change a first impedance of the matching network. The tunable device can be operable to receive a second of one or more variable voltage signals to cause a change in a second impedance of the tunable device.

Abstract translation: 可变阻抗电路包括用于耦合到可调谐设备的匹配网络，其中匹配网络具有第一端口和第二端口，其中可调谐设备耦合到第一端口或第二端口之一，并且匹配网络 具有一个或多个可变介质电容器。 一个或多个可变介电电容器可操作以接收一个或多个可变电压信号中的第一个，以使一个或多个可变介电电容器改变匹配网络的第一阻抗。 可调谐装置可操作以接收一个或多个可变电压信号中的第二个，以引起可调谐装置的第二阻抗的改变。