-
公开(公告)号：US5936484A
公开(公告)日：1999-08-10
申请号：US722226
申请日：1996-10-23
摘要： A UHF phase shifter including a UHF waveguide having an electrooptical element lying between two elements 3 and 4 made of materials which have permittivity higher than that of the electrooptical element. An electric polarization field is applied for controlling the electrooptical element and a UHF line is inserted into the element. The control of the orientation of the molecules of the electrooptical element allows for a variation of the index of the element as seen by the field of a UHF wave.
摘要翻译： PCT No.PCT / FR95 / 00226 Sec。 371日期：1996年10月23日 102（e）日期1996年10月23日PCT提交1995年2月24日PCT公布。 出版物WO96 / 26554 日期1996年8月29日一种UHF移相器，包括UHF波导，其具有位于两个元件3和4之间的电光元件，该元件由具有高于电光元件的介电常数的材料制成。 应用电极化场控制电光元件，并将UHF线插入元件。 电光元件的分子的取向的控制允许由UHF波的场看到的元件的折射率的变化。
-
2.发明申请公开(公告)号：US20140104135A1
公开(公告)日：2014-04-17
申请号：US14118194
申请日：2012-05-15
IPC分类号： H01Q21/06
CPC分类号： H01Q21/065 , H01Q9/0407 , H01Q21/0087
摘要： An antenna comprises a plurality of tiles forming an antenna plane, each of said tiles comprising a plurality of radiating elements. Each radiating element comprises a metallic upper patch disposed above a metallic lower patch, the two patches being separated by a layer insulating them electrically. The lower patch is fed with electric current. Each radiating element comprises a conducting frame disposed parallel to the antenna plane and framing the two patches of said element, the two so-called patches being coupled electromagnetically through the aperture of said frame whose body comprises a rear face of small cross section disposed on the side of the lower patch and a front face of larger cross section disposed on the side of the upper patch, so as to widen the angular scan field of a beam in a plane orthogonal to the antenna plane.
摘要翻译： 天线包括形成天线平面的多个瓦片，每个所述瓦片包括多个辐射元件。 每个辐射元件包括设置在金属下贴片上方的金属上贴片，两个贴片由电绝缘的层隔开。 下补片供电电流。 每个辐射元件包括平行于天线平面布置并构成所述元件的两个贴片的导电框架，所述两个所谓的贴片电磁耦合穿过所述框架的孔，该主体包括设置在所述框架上的小横截面的后表面 并且设置在上部贴片的侧面上的较大横截面的前表面，以便在垂直于天线平面的平面中加宽光束的角扫描场。
-
公开(公告)号：US5557090A
公开(公告)日：1996-09-17
申请号：US401251
申请日：1995-03-09
CPC分类号： G06K19/06187 , G06K7/10009
摘要： A bank or identity type of magnetic card contains ferromagnetic elements that selectively absorb waves at microwave frequencies. The disclosure also relates to a reading device adapted to this card. The device has an active system and a resonant system capable of filtering the microwaves at the resonance frequencies of the ferromagnetic materials of the card to be read. The reading device, equipped with a system to measure the amplitude of the microwaves, can thus recognize the magnetic information elements on the card, through the disturbance or non-disturbance of the microwaves during the insertion of the card into the device. The value of the encoding of the card lies in fact that the information elements are hard to destroy.
摘要翻译： 磁卡的银行或身份类型包含在微波频率上选择性地吸收波的铁磁元件。 本公开还涉及适用于该卡的读取装置。 该装置具有能够以要读取的卡的铁磁材料的共振频率对微波进行滤波的有源系统和谐振系统。 装备有用于测量微波幅度的系统的读取装置因此可以通过在将卡插入设备中的微波的干扰或非干扰来识别卡上的磁信息元素。 卡的编码的价值实际上是信息元素很难破坏。
-
公开(公告)号：US09831566B2
公开(公告)日：2017-11-28
申请号：US14118194
申请日：2012-05-15
CPC分类号： H01Q21/065 , H01Q9/0407 , H01Q21/0087
摘要： An antenna comprises a plurality of tiles forming an antenna plane, each of said tiles comprising a plurality of radiating elements. Each radiating element comprises a metallic upper patch disposed above a metallic lower patch, the two patches being separated by a layer insulating them electrically. The lower patch is fed with electric current. Each radiating element comprises a conducting frame disposed parallel to the antenna plane and framing the two patches of said element, the two so-called patches being coupled electromagnetically through the aperture of said frame whose body comprises a rear face of small cross section disposed on the side of the lower patch and a front face of larger cross section disposed on the side of the upper patch, so as to widen the angular scan field of a beam in a plane orthogonal to the antenna plane.
-
-
-
搜索结果
4 条记录 (耗时 0.018 秒)
