论文部分内容阅读
应用于35千兆赫介质波导的几种铁氧体控制器件已设计、制造出来,并经过了鉴定。这些器件包括尖晶石铁氧体移相器和环流器以及六角晶系的铁氧体隔离器。这些器件最适用于工作频率为35千兆赫的镁钛酸盐介质波导型传输线。环流器插入损耗小于1分贝,隔离度大于15分贝,带宽超过10％。雷基亚-斯宾塞(Reggia-Spencer)型移相器使用镍锌铁氧体,其饱和磁化强度为5000高斯,剩磁1950高斯。产生的相移为125°/厘米,插入损耗为0.3分贝。谐振式隔离器正向插入损耗为1分贝,反向隔离大于20分贝。当频率为94千兆赫时,最初采用的材料和器件所存在的问题主要与材料的损耗和小尺寸器件的制造有关,如要解凑这些问题就须选择适当的材料,采用简单的设计和精湛的工艺技术。
Several ferrite control devices used in 35 gigahertz dielectric waveguides have been designed, fabricated, and qualified. These devices include spinel ferrite phase shifters and circulators and hexagonal ferrite isolators. These devices are best suited for magnesium titanate dielectric waveguide type transmission lines operating at 35 GHz. Circulator insertion loss is less than 1 dB, isolation greater than 15 dB, bandwidth of more than 10%. Reggia-Spencer phase shifters use nickel-zinc ferrite, which has a saturation magnetization of 5000 gauss and a remanence of 1950 gauss. The resulting phase shift is 125 ° / cm and the insertion loss is 0.3 dB. Resonant isolator forward insertion loss of 1 dB reverse isolation greater than 20 dB. At 94 GHz, the initial problems with materials and devices are mainly related to the loss of materials and the fabrication of small-size devices. To get rid of these problems, the proper materials must be selected, with simple design and exquisiteness Technology.