公开(公告)号：US20130176177A1

公开(公告)日：2013-07-11

申请号：US13654209

申请日：2012-10-17

Applicant: Utah State University

Inventor： Bedri Cetiner ,  Daniel Rodrigo ,  Luis Jofre

IPC: H01Q19/00

CPC classification number: H01Q19/005 ,  H01Q3/01 ,  H01Q9/0414 ,  H01Q9/0442

Abstract: Reconfigurable antennas utilizing parasitic layers are disclosed herein. In certain embodiments, a reconfigurable antenna may include an active driven antenna element. The active driven antenna may be a patch antenna element. A parasitic element may be disposed over the active antenna element and be configured to couple with electromagnetic energy emitted from the active antenna element via electromagnetic mutual coupling. The parasitic element may include an array of selectively reconfigurable pixels interconnected via microelectromechanical switches. By selectively reconfiguring the geometry of the array, the reconfigurable antenna may be configured to operate in multiple operating modes.

Abstract translation: 本文公开了利用寄生层的可重构天线。 在某些实施例中，可重构天线可以包括有源驱动天线元件。 有源驱动天线可以是贴片天线元件。 寄生元件可以设置在有源天线元件上，并且被配置为通过电磁互耦耦合与有源天线元件发射的电磁能。 寄生元件可以包括通过微机电开关互连的选择性可重构像素的阵列。 通过选择性地重新配置阵列的几何形状，可重构天线可被配置为在多种操作模式下操作。

公开(公告)号：US20130120213A1

公开(公告)日：2013-05-16

申请号：US13674298

申请日：2012-11-12

Applicant: Utah State University

Inventor： Bedri A. Cetiner ,  Hema Swaroop Mopidevi ,  Daniel Rodrigo ,  Luis Jofre

IPC: H01Q1/48 ,  H01Q21/00 ,  H01Q1/38

CPC classification number: H01Q1/48 ,  H01Q1/38 ,  H01Q5/50 ,  H01Q9/0421 ,  H01Q21/00 ,  H01Q21/30

Abstract: A multi-band antenna that may be designed to operate well in both Public Safety (PS) and Long-Term Evolution (LTE) wireless communication may employ a stepped T-shape structure in conjunction with patch tapering or a reconfigurable ground plane architecture and capacitive feeding to achieve broad bandwidth performance (e.g., over a frequency range from 220 MHz to 4900 MHz). To achieve desired performance, the antenna may include a three-dimensional structure having lateral dimensions of approximately 0.25λ in length and 0.01λ in height at a low desired frequency of operation (e.g., 426 MHz). In some embodiments, the disclosed antenna may exhibit good gain flatness and have a radiation pattern that remains substantially constant over a broad range of operating frequencies.

Abstract translation: 可以设计为在公共安全（PS）和长期演进（LTE）无线通信中良好运行的多频带天线可以采用阶梯式T形结构，其结合补片渐变或可重新配置的接地平面架构和电容 馈送以实现宽带宽性能（例如，在220MHz至4900MHz的频率范围内）。 为了实现期望的性能，天线可以包括具有大约0.25λ长度的横向尺寸和在低期望操作频率（例如，426MHz））处的0.01lambda高度的三维结构。 在一些实施例中，所公开的天线可以表现出良好的增益平坦度，并且具有在宽范围的工作频率上基本保持恒定的辐射图。

公开(公告)号：US08797221B2

公开(公告)日：2014-08-05

申请号：US13708747

申请日：2012-12-07

Applicant: Utah State University

Inventor： Bedri A. Cetiner ,  Yasin Damgaci ,  Luis Jofre ,  Daniel Rodrigo

IPC: H01Q3/12 ,  H01Q3/20

CPC classification number: H01Q3/20 ,  H01Q1/364 ,  H01Q3/01 ,  H01Q9/285 ,  H01Q21/205

Abstract: A reconfigurable antenna that utilizes liquid metal to achieve dynamic antenna performance is disclosed. The reconfigurable antenna may utilize one or more liquid metal sections that can be variably displaced. Utilizing liquid metal may reduce certain undesirable effects associated with more conventional mechanical reconfigurable antennas including mechanical failure due to material fatigue, creep, and/or wear. Precise microfluidic techniques may be utilized in the design of a reconfigurable antenna that utilizes liquid metal. The reconfigurable antenna may utilize a circular Yagi-Uda array design and include movable parasitic director and reflector elements implemented using liquid metal (e.g., mercury (Hg)). The parasitic elements may be placed and rotated in a circular microfluidic channel around a driven antenna element utilizing a flow generated and controlled by a piezoelectric micropump. The reconfigurable antenna may operate at 1800 MHz with 4% bandwidth and be capable of performing beam steering over 360° with fine tuning.

Abstract translation: 公开了一种利用液态金属实现动态天线性能的可重构天线。 可重新配置的天线可以利用可以可变地移位的一个或多个液态金属部分。 利用液体金属可以减少与更常规的机械可重构天线相关的某些不期望的影响，包括由于材料疲劳，蠕变和/或磨损引起的机械故障。 精密微流控技术可用于利用液态金属的可重构天线的设计。 可重构天线可以利用圆形Yagi-Uda阵列设计，并且包括使用液态金属（例如，汞（Hg））实现的可移动的寄生导向器和反射器元件。 这些寄生元件可以利用由压电微型泵产生和控制的流动来放置并旋转在围绕驱动天线元件的圆形微流体通道中。 可重新配置的天线可以工作在1800 MHz，带宽为4％，并且能够通过微调进行360°以上的波束控制。

公开(公告)号：US09379449B2

公开(公告)日：2016-06-28

申请号：US13654209

申请日：2012-10-17

Applicant: Utah State University

Inventor： Bedri Cetiner ,  Daniel Rodrigo ,  Luis Jofre

IPC: H01Q19/00 ,  H01Q3/01 ,  H01Q9/04

CPC classification number: H01Q19/005 ,  H01Q3/01 ,  H01Q9/0414 ,  H01Q9/0442

Abstract: Reconfigurable antennas utilizing parasitic layers are disclosed herein. In certain embodiments, a reconfigurable antenna may include an active driven antenna element. The active driven antenna may be a patch antenna element. A parasitic element may be disposed over the active antenna element and be configured to couple with electromagnetic energy emitted from the active antenna element via electromagnetic mutual coupling. The parasitic element may include an array of selectively reconfigurable pixels interconnected via microelectromechanical switches. By selectively reconfiguring the geometry of the array, the reconfigurable antenna may be configured to operate in multiple operating modes.

Abstract translation: 本文公开了利用寄生层的可重构天线。 在某些实施例中，可重构天线可以包括有源驱动天线元件。 有源驱动天线可以是贴片天线元件。 寄生元件可以设置在有源天线元件上，并且被配置为通过电磁互耦耦合与有源天线元件发射的电磁能。 寄生元件可以包括通过微机电开关互连的选择性可重构像素的阵列。 通过选择性地重新配置阵列的几何形状，可重构天线可被配置为在多种操作模式下操作。

公开(公告)号：US20140168022A1

公开(公告)日：2014-06-19

申请号：US13708747

申请日：2012-12-07

Applicant: Utah State University

Inventor： Bedri A. Cetiner ,  Yasin Damgaci ,  Luis Jofre ,  Daniel Rodrigo

IPC: H01Q3/20

CPC classification number: H01Q3/20 ,  H01Q1/364 ,  H01Q3/01 ,  H01Q9/285 ,  H01Q21/205

Abstract: A reconfigurable antenna that utilizes liquid metal to achieve dynamic antenna performance is disclosed. The reconfigurable antenna may utilize one or more liquid metal sections that can be variably displaced. Utilizing liquid metal may reduce certain undesirable effects associated with more conventional mechanical reconfigurable antennas including mechanical failure due to material fatigue, creep, and/or wear. Precise microfluidic techniques may be utilized in the design of a reconfigurable antenna that utilizes liquid metal. The reconfigurable antenna may utilize a circular Yagi-Uda array design and include movable parasitic director and reflector elements implemented using liquid metal (e.g., mercury (Hg)). The parasitic elements may be placed and rotated in a circular microfluidic channel around a driven antenna element utilizing a flow generated and controlled by a piezoelectric micropump. The reconfigurable antenna may operate at 1800 MHz with 4% bandwidth and be capable of performing beam steering over 360° with fine tuning.

Abstract translation: 公开了一种利用液态金属实现动态天线性能的可重构天线。 可重新配置的天线可以利用可以可变地移位的一个或多个液态金属部分。 利用液体金属可以减少与更常规的机械可重构天线相关的某些不期望的影响，包括由于材料疲劳，蠕变和/或磨损引起的机械故障。 精密微流控技术可用于利用液态金属的可重构天线的设计。 可重构天线可以利用圆形Yagi-Uda阵列设计，并且包括使用液态金属（例如，汞（Hg））实现的可移动的寄生导向器和反射器元件。 这些寄生元件可以利用由压电微型泵产生和控制的流动来放置并旋转在围绕驱动天线元件的圆形微流体通道中。 可重新配置的天线可以工作在1800 MHz，带宽为4％，并且能够通过微调进行360°以上的波束控制。