Reconfigurable ground plane membranes for analog/digital microstrip phase shifters and frequency agile antenna

C. Shafai, L. Shafai, R. Al-Dahleh, D. Chrusch, Satish K. Sharma
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引用次数: 4

Abstract

A new type of RF MEMS device is presented for microstrip transmission line phase shifters and frequency agile patch antenna. Ground plane membranes are implemented to control local substrate effective dielectric constant and so microstrip device capacitance. Continuous control of transmission line phase shift or antenna resonant frequency is demonstrated. In phase shifter implementation, a figure of merit of over 700/spl deg/ phase shift/dB signal power loss has been achieved. In MPA implementation, a MPA was continuously swept from 16.8 GHz to 17.82 GHz (6% variation). Additionally, while MEM switch devices are limited in power handling capability, the presented device is not so limited.
用于模拟/数字微带移相器和频率捷变天线的可重构地平面膜
提出了一种用于微带传输线移相器和频率捷变贴片天线的新型射频MEMS器件。地平面膜用于控制局部衬底有效介电常数和微带器件电容。演示了传输线相移或天线谐振频率的连续控制。在移相器的实现中,已经实现了超过700/spl度/移相/dB信号功率损失的优值。在MPA实现中,一个MPA在16.8 GHz至17.82 GHz范围内连续扫描(变化6%)。此外,虽然MEM开关器件在功率处理能力方面受到限制,但所提出的器件并不受此限制。
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