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1. 发明授权

US06885341B2 Inverted-F ferroelectric antenna 失效
标题翻译：倒F型铁电天线
公开(公告)号：US06885341B2
公开(公告)日：2005-04-26
申请号：US10120603
申请日：2002-04-09
申请人： Allen Tran , Jordi Fabrega-Sanchez
发明人： Allen Tran , Jordi Fabrega-Sanchez
IPC分类号： H01G4/12 , G01R27/26 , H01G4/33 , H01G4/40 , H01G7/06 , H01L27/08 , H01P1/20 , H01P1/203 , H01P1/205 , H01P1/213 , H01P1/36 , H01P5/04 , H01P7/08 , H01Q1/00 , H01Q1/24 , H01Q1/38 , H01Q3/44 , H01Q9/04 , H01Q9/14 , H01Q9/16 , H01Q9/28 , H01Q9/30 , H01Q9/42 , H01Q13/02 , H01Q13/06 , H01Q13/08 , H01Q13/20 , H01Q13/22 , H03B5/04 , H03B5/08 , H03B5/12 , H03B5/18 , H03B5/36 , H03F1/56 , H03F3/191 , H03H7/01 , H03H7/12 , H03H7/20 , H03H7/38 , H03J5/24 , H03L1/02 , H03L7/18 , H04B1/04 , H04B1/30 , H04B1/40 , H04L27/38 , H01Q1/36
CPC分类号： G01R27/2694 , H01G7/06 , H01L27/0808 , H01P1/203 , H01P1/20336 , H01P1/20363 , H01P1/20381 , H01P1/2039 , H01P1/2056 , H01P1/213 , H01P5/04 , H03B5/04 , H03B5/124 , H03B5/1262 , H03B5/1293 , H03B5/1841 , H03B5/362 , H03F1/56 , H03F3/191 , H03F2200/111 , H03F2200/294 , H03F2200/372 , H03H7/0123 , H03H7/12 , H03H7/20 , H03J5/246 , H03L1/022 , H03L7/18 , H04B1/0053 , H04B1/0458 , H04B1/30 , H04B1/40
摘要： An inverted-F ferroelectric antenna is provided. The antenna comprises a counterpoise, or groundplane, and an inverted-F structure radiator having a first end connected to the counterpoise. A fixed dielectric material, typically a ceramic or air separates the radiator and the counterpoise. A capacitor, formed from a ferroelectric dielectric is connected between the second end of the radiator and the counterpoise. The capacitor has a variable dielectric constant, and the antenna is resonant at a frequency responsive to the dielectric constant of the capacitor ferroelectric material. Typically, the capacitor includes a dielectric formed from a fixed constant dielectric, together with a ferroelectric dielectric with a variable dielectric constant. A bias voltage feed is used to apply a voltage to the capacitor ferroelectric dielectric. The ferroelectric dielectric has a dielectric constant that varies in response to the applied voltage. In one aspect of the antenna, the capacitor has a capacitance of approximately 0.35 picofarads (pF) at zero volts of bias voltage and a capacitance of approximately 0.29 pf at 40 volts of bias voltage.
摘要翻译：提供倒F型铁电天线。天线包括平衡或接地平面以及具有连接到平衡点的第一端的倒F结构的散热器。固定电介质材料（通常为陶瓷或空气）分离散热器和平衡物。由铁电电介质形成的电容器连接在散热器的第二端和平衡点之间。电容器具有可变介电常数，并且天线以对电容器铁电材料的介电常数有响应的频率谐振。通常，电容器包括由固定恒定电介质形成的电介质以及具有可变介电常数的铁电电介质。偏置电压馈送用于向电容器铁电电介质施加电压。铁电介质的介电常数根据施加的电压而变化。在天线的一个方面，电容器在偏置电压为零伏特时具有大约0.35皮法（pF）的电容，在40伏的偏置电压下的电容约为0.29pf。

2. 发明授权

US07408517B1 Tunable capacitively-loaded magnetic dipole antenna 有权
标题翻译：可调电容负载磁偶极天线
公开(公告)号：US07408517B1
公开(公告)日：2008-08-05
申请号：US11339926
申请日：2006-01-25
申请人： Gregory Poilasne , Vaneet Pathak , Jordi Fabrega , Huan-Sheng Hwang
发明人： Gregory Poilasne , Vaneet Pathak , Jordi Fabrega , Huan-Sheng Hwang
IPC分类号： H01Q11/12
CPC分类号： H01Q1/241 , H01Q7/005 , H01Q9/145
摘要： A frequency-tunable capacitively-loaded magnetic dipole antenna includes a transformer loop having a balanced feed interface, and a capacitively-loaded magnetic dipole radiator with a tunable effective electrical length. In one embodiment, the capacitively-loaded magnetic dipole radiator includes a tunable electric field bridge. For example, the capacitively-loaded magnetic dipole radiator may comprise a quasi loop with a tunable electric field bridge interposed between the quasi loop first and second ends. The electric field bridge may be an element such as a ferroelectric (FE) tunable capacitor or a microelectromechanical system (MEMS) capacitor, to name a couple of examples. In certain embodiments, the capacitively-loaded magnetic dipole radiator includes a quasi loop with a loop perimeter. The effective electrical length of the radiator is changed by adjusting the perimeter using an element such as a MEMS switch, or a semiconductor switch.
摘要翻译：频率可调电容负载的磁偶极子天线包括具有平衡馈电接口的变压器回路和具有可调谐有效电长度的电容负载磁偶极辐射器。在一个实施例中，电容负载的磁偶极辐射器包括可调电场桥。例如，电容负载的磁偶极辐射器可以包括准循环，其中可调谐电场桥插置在准回路第一和第二端之间。电场桥可以是诸如铁电（FE）可调谐电容器或微机电系统（MEMS）电容器的元件，其中列举了几个示例。在某些实施例中，电容负载磁偶极辐射器包括具有环周长的准环路。通过使用诸如MEMS开关或半导体开关的元件来调节周边来改变散热器的有效电长度。

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