Design of X band multilayer chip microstrip ferrite circulator

Peng Long; Li Yuanxun; Tu Xiaoqiang; Li Lezhong; Wang Rui

doi:10.3788/HPLPB20132510.2717

Volume 25 Issue 10

Sep. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(10): 2717-2722

Peng Long, Li Yuanxun, Tu Xiaoqiang, et al. Design of X band multilayer chip microstrip ferrite circulator[J]. High Power Laser and Particle Beams, 2013, 25: 2717-2722. doi: 10.3788/HPLPB20132510.2717

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Peng Long, Li Yuanxun, Tu Xiaoqiang, et al. Design of X band multilayer chip microstrip ferrite circulator[J]. High Power Laser and Particle Beams, 2013, 25: 2717-2722. doi: 10.3788/HPLPB20132510.2717

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Design of X band multilayer chip microstrip ferrite circulator

doi: 10.3788/HPLPB20132510.2717

1.
College of Optoelectronic Technology,Chengdu University of Information Technology,Chengdu 610225,China;
2.
State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China

Received Date: 2013-04-09
Rev Recd Date: 2013-05-26
Publish Date: 2013-09-22

Abstract

Abstract

The microwave circulator is expected to be integrated with low temperature co-fired ceramics (LTCC) technique by multilayer chip structure design. In this paper, the X band microstrip ferrite circulator is designed with the three-dimensional electromagnetic simulation method. The whole substrate consists of gyrotropic stack layers, which provides different saturation magnetization. The results show that the stack number and saturation magnetization of the stack layers exhibit considerable effect on the return loss and reverse isolation for the circulator. It suggests to be correlated with the input equivalent circuit parameters for the circulator, which are affected by the interface and varied saturation magnetization of the stack layers in multilayer chip structure. High return loss, high reverse isolation and low insertion loss can be obtained with the optimized design. However, it is found that the bandwidth of the circulator is unaffected by the stack number and saturation magnetization of the stack layers, which is difficult to be improved with the optimized design.
- microwave passive device,
- ferrite circulator,
- multilayer chip structure,
- low temperature co-fired ceramics

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