公开(公告)号：US6104354A

公开(公告)日：2000-08-15

申请号：US275363

申请日：1999-03-24

申请人： Roger Hill ,  Philip J. Connor ,  Robert J. Cox

发明人： Roger Hill ,  Philip J. Connor ,  Robert J. Cox

IPC分类号： H01Q23/00 ,  H01Q7/00 ,  H01Q11/12

CPC分类号： H01Q7/005

摘要： A small radio apparatus such as a pager has a printed circuit loop antenna(12) comprising a generally elongate loop formed by first and second electrical conductors(22,24) interconnected by first and second electrically conductive end portions(18,20). A fixed value high Q capacitance(26) is incorporated into the first end portion(18) and a variable capacitance(30) is incorporated in a tap(28) interconnecting the first and second conductors(22,24) adjacent to, but spaced from, the second end portion(20). The loop antenna may be fabricated from low loss material or may comprise a track or back-to-back tracks on a dielectric substrate. The loop antenna(12) may be connected directly to RF circuitry or may be coupled inductively to the RF circuitry.

摘要翻译： 诸如寻呼机的小型无线电设备具有印刷电路环形天线（12），其包括由第一和第二导电端部（18,20）互连的第一和第二电导体（22,24）形成的大致细长的环。 固定值高Q电容（26）被并入到第一端部（18）中，并且可变电容（30）被结合在互连第一和第二导体（22,24）的抽头（28）中，所述第一和第二导体 从第二端部（20）。 环形天线可以由低损耗材料制成，或者可以包括介质衬底上的轨道或背对背轨道。 环形天线（12）可以直接连接到RF电路，或者可以感应地耦合到RF电路。

公开(公告)号：US4537506A

公开(公告)日：1985-08-27

申请号：US433760

申请日：1982-10-12

申请人： Bernhard Lersmacher ,  Michael P. Wassall ,  Philip J. Connor

发明人： Bernhard Lersmacher ,  Michael P. Wassall ,  Philip J. Connor

IPC分类号： G01N21/74 ,  G01J3/30

CPC分类号： G01N21/74

摘要： The atomizer of the present invention serves for generating free atoms and an atomic cloud by heating a sample for analysis. The device includes a preferably tubular cuvette for receiving the sample, and the cuvette consists either of a basic body of carbon, which is enveloped by a pyrolytic graphite layer, or only of pyrolytic graphite layers. An electric supply unit for Joule heating the cuvette is in contact with the cuvette by contact members. In order to achieve a radial temperature distribution in the cuvette such that the inner wall of the cuvette is at an essentially higher temperature than the outer wall of the cuvette, the contact surfaces of the cuvette and the contact surfaces of the contact members contact each other in such a manner that the electric current applied during operation of the atomizer preferably flows through the inner wall of the cuvette.

摘要翻译： 本发明的雾化器用于通过加热样品来分析产生游离原子和原子云。 该装置包括用于接收样品的优选管状比色皿，并且该比色杯由碳热的基本碳体组成，其由热解石墨层包围，或仅由热解石墨层包围。 用于焦耳加热比色杯的电源单元与接触构件与比色皿接触。 为了在比色皿中实现径向温度分布，使得比色皿的内壁的温度比比色杯的外壁基本上更高的温度，反应杯的接触表面和接触构件的接触表面彼此接触 以使得在雾化器操作期间施加的电流优选地流过比色皿的内壁。