Miniaturized 180$^{\circ}$ Hybrid Coupler in LTCC for L-Band Applications
Miniaturized 180$^{\circ}$ Hybrid Coupler in LTCC for L-Band Applications
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DOI：
10.1109/lmwc.2014.2310469
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发表时间：
2014-05
影响因子：
3
通讯作者：
G. Brzezina;L. Roy
中科院分区：
文献类型：
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作者：
G. Brzezina;L. Roy
在这封信中，集总元件技术用于设计180°混合耦合器或平衡在L1波段的应用。所采用的材料系统是低温共烧陶瓷（LTCC），它允许三维被动集成。所提出的平衡器采用一种改进的等效电路，允许同时优化振幅和相位平衡。文中还介绍了平衡器设计参数的快速整定过程。在1.575 GHz下的测量表明，插入损耗低于0.67 dB，幅度不平衡为0.14 dB，相位差为179.1°。据笔者所知，这是L1波段应用中最小、性能最好的集总元件平衡器。
In this letter, the lumped element technique is used to design a 180 ° hybrid coupler or balun for applications at L1 band. The material system employed is low temperature co-fired ceramic (LTCC), which allows for three-dimensional passive integration. The proposed balun uses a modified equivalent circuit that permits the simultaneous optimization of amplitude and phase balances. A process for the quick tuning of the balun design parameters is also presented. Measurements at 1.575 GHz indicate insertion losses below 0.67 dB, an amplitude imbalance of 0.14 dB, and a phase difference of 179.1 °. To the author's best knowledge, this is the smallest and best performing lumped element balun for applications at L1 band.