Linearly variable inductor with RF MEMS switches to enlarge a continuous tuning range
Linearly variable inductor with RF MEMS switches to enlarge a continuous tuning range
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DOI：
10.1109/sensor.2009.5285389
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发表时间：
2009-06
期刊：
影响因子：
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通讯作者：
Dong-Hoon Choi;H. Lee;Jun‐Bo Yoon
中科院分区：
文献类型：
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作者：
Dong-Hoon Choi;H. Lee;Jun‐Bo Yoon
可变MEMS电感是可重构射频电路的关键器件之一，但具有连续大调谐范围的可变电感很难实现。本文提出采用连续和离散可变电感相结合的方法来扩大电感的连续调谐范围。为了实现所提出的组合，我们专注于离散可变电感器，其对电感器的匝数和芯面积等几何形状表现出非常高的线性度。在1.5 ~ 3.5GHz频率范围内，总调谐值为1.5nH，每级调谐值约为0.75nH。使用所提出的概念，总的连续调谐范围可以极大地扩展。
A variable MEMS inductor is one of the key components for reconfigurable RF circuits, but the variable inductors having continuous and large tuning range are very hard to implement. In this paper, we proposed the combination of continuous and discrete variable inductor to enlarge the continuous tuning range of inductance. In order to realize the proposed combination, we focused on the discrete variable inductors which showed a very high linearity to geometries such as the number of turns and core area of the inductor. Measured total tuning value is 1.5nH and tuning value per stage is about 0.75nH from 1.5GHz to 3.5GHz. Using the proposed concept, the total continuous tuning range can be enormously extended.