公开(公告)号：US5115214A

公开(公告)日：1992-05-19

申请号：US595406

申请日：1990-10-11

申请人： Felix Gassmann ,  Ole Snedkerud

发明人： Felix Gassmann ,  Ole Snedkerud

IPC分类号： H01P5/10 ,  H03H7/42

CPC分类号： H03H7/422 ,  H01P5/10

摘要： A balancing loop including a housing inside of which is disposed a first conductor part having a first sublength and a second sublength, with the first sublength constructed as a coaxial line passing through the housing and having its inner conductor terminated inside the housing and connected to a second conductor part, and the second sublength extending from the termination of the inner conductor to the second conductor part to an output line. The second conductor part also has the first and second sublengths and extends spaced apart from and parallel to the first conductor part. The second conductor part has one side connected to the housing and the other side to another output line. The output lines connected to the first and second conductor parts thereby form two symmetrical output lines which lead out of the housing. At least one variable capacitor is arranged between the first and second conductor parts to tune the balancing loop over the operating frequency range. The characteristic line impedance of the first and second conductor parts and the first sublength are chosen such that the balancing loop can be tuned to a different frequency only by means of the variable capacitor, and without the need for changing the electrical length of the first sublength.

摘要翻译： 平衡环包括壳体，其内部设置有具有第一亚长度和第二亚长度的第一导体部分，其中第一亚长度构造成穿过壳体的同轴线，并且其内部导体终止于壳体内并且连接到 第二导体部分，并且第二子长度从内部导体的端部延伸到第二导体部分到输出线。 第二导体部分还具有第一和第二子长度并且与第一导体部分间隔开并平行。 第二导体部分的一侧连接到壳体，另一侧连接到另一输出线。 连接到第一和第二导体部分的输出线由此形成两个对称的输出线，这些输出线从外壳引出。 在第一和第二导体部分之间布置至少一个可变电容器，以在工作频率范围内调谐平衡环路。 选择第一和第二导体部分的特征线阻抗和第一子长度，使得平衡环可以仅通过可变电容器调谐到不同的频率，并且不需要改变第一子长度的电长度 。

公开(公告)号：US5907522A

公开(公告)日：1999-05-25

申请号：US840013

申请日：1997-04-24

申请人： Viron Teodoridis ,  Felix Gassmann ,  Francesco Spina

发明人： Viron Teodoridis ,  Felix Gassmann ,  Francesco Spina

IPC分类号： H01Q1/44 ,  H01Q1/24 ,  H01Q1/27 ,  H04B1/04 ,  H04B1/38 ,  G04D47/00 ,  H04B1/08 ,  H05G1/14

CPC分类号： H01Q1/273

摘要： Portable device for receiving and/or transmitting radio-transmitted messages comprising:a case (11; 42; 51),an antenna (12; 31, 32; 52, 53) capable of picking up both a magnetic component and an electric component of an electromagnetic field carrying radio-transmitted messages, anda micro-receiver (13) receiving the messages picked up by the antenna, said antenna comprising two conductive plates (15, 16; 31, 32; 52, 53) disposed so as to pick up the radial electric component (E.sub.r) of said electromagnetic field with respect to the body of the wearer.The antenna (12; 31, 32; 52, 53) is formed by a coil (17) comprising a turn arranged in said case (11; 42; 51) to pick up the azimuthal magnetic component (H.sub..PHI.) of said electromagnetic field around said body and the plates (15, 16; 31, 32; 52, 53) form part of said coil (17).

摘要翻译： 用于接收和/或发送无线电发送消息的便携式设备，包括：壳体（11; 42; 51），能够拾取磁性部件和电气部件的天线（12; 31,32; 52,53） 携带无线电发送消息的电磁场和接收由天线拾取的消息的微接收机（13），所述天线包括设置成拾取的两个导电板（15,16; 31,32; 52,53） 使所述电磁场的径向电气部件（Er）相对于穿戴者的身体升高。 天线（12; 31,32; 52,53）由包括设置在所述壳体（11; 42; 51）中的匝的线圈（17）形成，以拾取所述电磁场的方位磁性分量（H PHI） 围绕所述主体和所述板（15,16; 31,32; 52,53）形成所述线圈（17）的一部分。

公开(公告)号：US5231346A

公开(公告)日：1993-07-27

申请号：US833793

申请日：1992-02-12

申请人： Felix Gassmann

发明人： Felix Gassmann

IPC分类号： G01R29/08

CPC分类号： G01R29/0878

摘要： A field strength measuring instrument for simultaneously measuring E and H fields is described. A loop antenna is formed by a half-loop (1) which is terminated by a metal surface (2). Due to the mirror effect of the metal surface (2), this arrangement, in field theory, is equivalent to a loop antenna which is divided into a first and a second half-loop (1, 5) by two load resistors (4a, 4b) arranged at opposite ends of the loop antenna. A circuit (8) for determining the field strengths of the E and H fields by means of the voltages (V.sub.1, V.sub.2) measured across the load resistors (4a, 4b) is arranged in a part-space shielded from the first half-loop (1) by the metal surface (2).

摘要翻译： 描述用于同时测量E和H场的场强测量仪器。 环形天线由半环（1）形成，半环（1）由金属表面（2）端接。 由于金属表面（2）的镜面效应，这种在现场理论中的布置等同于通过两个负载电阻器（4a，4a）分成第一和第二半环（1,5）的环形天线， 4b）布置在环形天线的相对端。 用于通过跨过负载电阻器（4a，4b）测量的电压（V1，V2）来确定E和H场的场强的电路（8）被布置在与第一半环 （1）通过金属表面（2）。

公开(公告)号：US5565822A

公开(公告)日：1996-10-15

申请号：US449850

申请日：1995-05-24

申请人： Felix Gassmann ,  Henk Hoitink ,  Rolf Muller ,  Hans Schar

发明人： Felix Gassmann ,  Henk Hoitink ,  Rolf Muller ,  Hans Schar

IPC分类号： G01R29/08 ,  G01R29/10 ,  G01R31/00 ,  H01P1/26 ,  H05K9/00

CPC分类号： H01P1/266 ,  G01R29/0828 ,  G01R29/105

摘要： In TEM waveguide arrangements such as are used in testing the electromagnetic compatibility of electronic devices in electromagnetic fields, a plate-shaped inner conductor is connected via electrically parallel-connected tubular resistors to an electrically conductive, spherical rear wall. This rear wall is electrically connected to an outer conductor and grounded. Radio-frequency absorbers are mounted on the rear wall for the purpose of absorbing TEM waves, the RF short-point absorbers adjacent to the tubular resistor being smaller than the remaining RF long-point absorbers, in order to reduce the capacitive influence of the tubular resistors. Identical tubular resistors are arranged perpendicular to the plane of the drawing of FIG. 1 in accordance with a current density distribution in such a way that they are more closely adjacent at the edge than in the middle of the inner conductor.

摘要翻译： 在诸如用于测试电磁场中电子设备的电磁兼容性的TEM波导布置中，板状内部导体通过电并联连接的管状电阻器连接到导电的球形后壁。 该后壁电连接到外导体并接地。 为了吸收TEM波，射频吸收器安装在后壁上，与管状电阻器相邻的RF短路吸收体小于剩余的RF长边吸收体，以减小管状电容器的电容性影响 电阻 相同的管状电阻器垂直于图1的图的平面布置。 根据电流密度分布，使得它们在边缘处比在内部导体的中间更紧密地相邻。