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首页> 外文期刊>Review of Scientific Instruments >Design and development of 3 dB patch compensated tandem hybrid coupler
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Design and development of 3 dB patch compensated tandem hybrid coupler

机译：3 dB贴片补偿串联混合耦合器的设计与开发

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摘要

Design and development procedure of the strip line based 3 dB patch compensated tandem hybrid coupler at 91.2 ± 15 MHz and 2.5 kW is presented. The coupled strip-line structure is designed and electromagnetic analysis software is used for accurate modelling and optimization of parameters. Coupled strip lines are well known for poor impedance matching and poor isolation due to discontinuities, fabrication tolerance constraints, and theoretical approximations in design. These effects are realized and compensated or taken into consideration. The conventional methods of compensation like open stubs or lumped capacitors are useful in the low rf power applications only. In the present paper, patch compensation technique is explored, explained, applied, and incorporated in the development of a 3 dB tandem hybrid coupler. This newly explored patch compensation technique is found substantially effective in improving the overall performance in terms of return loss and isolation. A prototype tandem coupler rated for 2.5 kW at 91.2 ± 15 MHz, has been developed, fabricated, tested, and the effect of patch compensation technique is found to be quite effective.
机译：提出了在91.2±15 MHz和2.5 kW下基于带状线的3 dB贴片补偿串联混合耦合器的设计和开发程序。设计了耦合的带状线结构，并使用电磁分析软件对参数进行精确建模和优化。由于不连续，制造公差约束和设计中的理论近似，耦合的带状线因阻抗匹配差和隔离性差而众所周知。可以实现并补偿或考虑这些效果。传统的补偿方法，例如开路短截线或集总电容器，仅在低射频功率应用中有用。在本文中，对3 dB串联混合耦合器的开发进行了探讨，解释，应用和结合了片补偿技术。发现这种新探索的补丁补偿技术在回波损耗和隔离度方面对改善整体性能非常有效。已开发，制造，测试了额定串联功率为2.5 kW（91.2±15 MHz）的原型串联耦合器，并且发现膜片补偿技术的效果非常有效。

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