公开(公告)号：US06549166B2

公开(公告)日：2003-04-15

申请号：US09935471

申请日：2001-08-22

申请人： Arun Bhattacharyya ,  Alan Cha ,  James McKay

发明人： Arun Bhattacharyya ,  Alan Cha ,  James McKay

IPC分类号： H01Q138

CPC分类号： H01Q21/065 ,  H01Q9/0435 ,  H01Q9/0457

摘要： A patch antenna is disclosed having four ports for circular polarization that suppress the TM-02 mode, resulting in a radiation pattern that is symmetric. The axial ratio performance is consequently superior to that of two-port patch antennas. A four-port patch antenna includes a patch made of an electrically conductive material, a patch substrate coupled to the patch wherein the patch substrate is made of a dielectric material, a ground plane coupled to the patch substrate wherein the ground plane is made of an electrically conductive material having at least four slots formed therein, a feed substrate coupled to the ground plane wherein the feed substrate is made of a dielectric material, and a hybrid network coupled to the feed substrate that includes a right hand circularly polarized port, a left hand circularly polarized port, and two matched terminated ports.

摘要翻译： 公开了一种贴片天线，其具有用于圆偏振的四个端口，其抑制TM-02模式，导致对称的辐射图。 因此，轴比性能优于双端口贴片天线。 四端口贴片天线包括由导电材料制成的贴片，耦合到贴片的贴片衬底，其中贴片衬底由电介质材料制成，接地平面耦合到贴片衬底，其中接地面由 具有形成在其中的至少四个槽的导电材料，耦合到接地平面的进料基板，其中进料基板由介电材料制成，以及耦合到馈电基板的混合网络，其包括右手圆极化端口，左 手圆极化端口和两个匹配的终端端口。

公开(公告)号：US06535174B2

公开(公告)日：2003-03-18

申请号：US09467637

申请日：1999-12-20

申请人： Sudhakar Rao ,  Arun Bhattacharyya

发明人： Sudhakar Rao ,  Arun Bhattacharyya

IPC分类号： H01Q1300

CPC分类号： H01Q25/04 ,  H01Q13/025

摘要： An antenna apparatus that has an increased efficiency, and a method for increasing the efficiency of multi-mode antenna feed horns, is disclosed. The method comprises the steps of exciting, within the antenna, a desired transmission mode and an undesired transmission mode of the signal to be transmitted, and converting, within the antenna, power within the undesired transmission mode into power for the desired transmission mode of the signal to be transmitted. An antenna apparatus in accordance with the present invention comprises a feed horn having an input opening, an aperture, and a cavity, disposed between the input opening and the aperture, for suppressing an undesired transmission mode of the antenna and exciting a desired transmission mode of the antenna.

摘要翻译： 公开了一种提高效率的天线装置和提高多模式天线馈电喇叭的效率的方法。 该方法包括以下步骤：在天线内激发要发送的信号的期望的传输模式和不期望的传输模式，并且在天线内将在不期望的传输模式内的功率转换成用于所需传输模式的功率 要发送的信号。 根据本发明的天线装置包括一个馈电喇叭，其具有设置在输入开口和孔之间的输入开口，孔径和空腔，用于抑制天线的不期望的传输模式并激发所需的传输模式 天线。

公开(公告)号：US06388620B1

公开(公告)日：2002-05-14

申请号：US09593182

申请日：2000-06-13

申请人： Arun Bhattacharyya

发明人： Arun Bhattacharyya

IPC分类号： H01Q138

CPC分类号： H01Q21/065 ,  H01Q1/288 ,  H01Q3/46 ,  H01Q9/0457

摘要： An antenna element, an antenna system, and a method for producing a signal using slot-coupled antenna elements are disclosed. The antenna element comprises an electrically conductive strip, a patch element, overlaying the electrically conductive strip, and a ground plane. The ground plane is coupled between the patch element and the electrically conductive strip and comprises an opening, at least a portion of the opening overlapping with at least a portion of the electrically conductive strip, wherein the opening and the electrically conductive strip can reflect incident radio frequency (RF) energy in a desired radiation pattern. A method in accordance with the present invention comprises illuminating a reflector with an RF signal emanating from a feed horn, wherein the reflector comprises at least one reflect array antenna element, and reflecting the RF signal from the reflect array element, wherein the reflect array element comprises an electrically conductive strip, a patch element, overlaying the electrically conductive strip, and a ground plane. The ground plane is coupled between the patch element and the electrically conductive strip and comprises an opening, at least a portion of the opening overlapping with at least a portion of the electrically conductive strip, wherein the opening and the electrically conductive strip assist in generating the desired radiation pattern.

摘要翻译： 公开了天线元件，天线系统和使用时隙耦合天线元件产生信号的方法。 天线元件包括导电条，贴片元件，覆盖导电条和接地平面。 所述接地平面耦合在所述贴片元件和所述导电条之间并且包括开口，所述开口的至少一部分与所述导电条的至少一部分重叠，其中所述开口和所述导电条可以反射入射无线电 频率（RF）能量。 根据本发明的方法包括用从馈电喇叭发射的RF信号照射反射器，其中反射器包括至少一个反射阵列天线元件，并且反射来自反射阵列元件的RF信号，其中反射阵列元件 包括导电条，贴片元件，覆盖导电条和接地平面。 所述接地平面耦合在所述贴片元件和所述导电条之间并且包括开口，所述开口的至少一部分与所述导电条的至少一部分重叠，其中所述开口和所述导电条有助于产生所述导电条 期望的辐射图。