Modeling of LTCC-Ferrite Tunable Inductors and Development of an <inline-formula>  src='/images/tex/31429.gif' alt='boldsymbol {L}'> </inline-formula>-Band Phase Shifter

Kagita Srujana; Basu Ananjan; Koul Shiban K.

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Modeling of LTCC-Ferrite Tunable Inductors and Development of an src='/images/tex/31429.gif' alt='boldsymbol {L}'> -Band Phase Shifter

机译：LTCC铁氧体可调谐电感器的建模和 src =“ / images / tex / 31429.gif” alt =“ boldsymbol {L}”> -波段移相器

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This paper presents the modeling of a tunable inductor using a low-temperature co-fired ceramic (LTCC)-ferrite tape and subsequent development of a loaded transmission line phase shifter using these inductors. The inductors are initially realized in the form of circular disks fabricated from commercially available ferrite tape (ESL 40011) wound with a copper wire. A complete model of this inductor is obtained between 0.3 and 4 GHz and validated by measurements. The phase shifter comprises these inductors in shunt, thus minimizing the effect of low-field magnetic losses in -band. The magnetic material is operated below the resonance region in a partially magnetized state with the help of a bias current that configures the phase shifter electronically. The phase shifter exhibits an insertion loss of 2 ± 0.5 dB and a differential phase shift varying between 35° and 10° in the above band. Finally, to demonstrate the feasibility of integration with other RF components, a working prototype of the same phase shifter that is fully integrated in LTCC is also presented with measurements.

机译：本文介绍了使用低温共烧陶瓷（LTCC）-铁氧体磁带的可调电感器的建模，以及使用这些电感器的负载传输线移相器的后续开发。电感器最初以圆盘形式实现，该圆盘由缠绕有铜线的市售铁氧体带（ESL 40011）制成。在0.3至4 GHz之间可获得该电感器的完整模型，并通过测量进行了验证。移相器包括并联的这些电感器，从而使带内低场磁损耗的影响最小。借助偏置电流，磁性材料在部分磁化状态下在谐振区域下方工作，该偏置电流以电子方式配置移相器。在上述频带中，移相器的插入损耗为2±0.5 dB，差分相移在35°至10°之间变化。最后，为了证明与其他RF组件集成的可行性，还提供了与LTCC完全集成的同一个移相器的工作原型，并进行了测量。

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来源
《Magnetics, IEEE Transactions on》 |2015年第10期|1-9|共9页
作者
Kagita Srujana; Basu Ananjan; Koul Shiban K.;
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, IIT Delhi, Delhi, India;

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正文语种 eng
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Ferrite disk; ferrite Inductor; ferrite disk; ferrite inductor; ferrite low temperature co-fired ceramic; ferrite low-temperature co-fired ceramic (LTCC); loaded line phase shifter; modeling;

机译：铁氧体圆盘;铁氧体电感器;铁氧体圆盘;铁氧体电感器;铁氧体低温共烧陶瓷;铁氧体低温共烧陶瓷（LTCC）;负载线移相器;建模;

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Modeling of LTCC-Ferrite Tunable Inductors and Development of an src='/images/tex/31429.gif' alt='boldsymbol {L}'> -Band Phase Shifter

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