A novel tunable low-pass filter based on MEMS and CPW

Wang, Chao; Guo, Xiaofeng; Ou'yang, Weixia; Zhang, Yonghua; Lai, Zongsheng

doi:10.1109/icemi.2009.5274678

Cited by 6 publications

(2 citation statements)

References 10 publications

(5 reference statements)

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“…But the insertion loss is 0.37dB at both states. The key performance parameters of the filter are given in Table 4 and compared with MEMS band pass filters presented in papers [4,5,7].…”

Section: Simulationsmentioning

confidence: 99%

“…Improvements in MEMS technology have made it possible to use it in tunable filters [3]. Some advantages of RF MEMS switches and varactors are: low loss, small size, near-zero power consumption, and high linearity [3,4]. Recently, the development of electromagnetic band-gap technology (EBG) has provided a chance to develop RF MEMS technology farther [5,6].…”

Section: Introductionmentioning

confidence: 99%

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Switchable Bandpass Filter with Capacitive MEMS Switches and EBG Structures

Taheri

Maphinejad

2011

AMR

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This paper presents a new switchable band pass filter based on electromagnetic band-gap (EBG) and coplanar-waveguide (CPW) structures and tuned by the MEMS shunt and series capacitive switches. By tuning the bridge height of the MEMS switches with low voltages (lower than 14.5v), the center frequency would be shifted with almost constant bandwidth. Proposed structure has smaller chip size and lower insertion (better than 0.375 dB) in mid band frequencies. Results show using MEMS technology and EBG structures not only improve the performance of the filter, but also they optimize the chip size. Therefore, it is suitable for radars, wireless, safe and multi-frequency communication systems.

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“…But the insertion loss is 0.37dB at both states. The key performance parameters of the filter are given in Table 4 and compared with MEMS band pass filters presented in papers [4,5,7].…”

Section: Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Switchable Bandpass Filter with Capacitive MEMS Switches and EBG Structures

Taheri

Maphinejad

2011

AMR

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Ku-band RF MEMS tunable comb line band reject filter on coplanar transmission line

Pradhan

Gupta

2013

AEU - International Journal of Electronics and Communications

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RF MEMS tunable band reject filter using metamaterials

Pradhan

Gupta

2014

International Conference on Electronics, Communication and Instrumentation (ICECI)

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Tuneable band reject filter is a very critical component of electronic warfare. The design is of such a filter using MEMS technology presented on CPW transmission line on silicon substrate using Complementary Split Ring Resonators (CSRRs) and RF MEMS variable capacitor, enabling compatibility with planar IC technology. The CSRRs are etched on both the signal line and ground planes of the CPW. Tunability of the band reject filter is achieved by putting the MEMS bridge in either up or down state. Through electrostatic actuation of the RF-MEMS switched capacitor, the electrical characteristics of the filter is modified, so that its resonance frequency can be tuned. The rejection of stop bands are around -20. 19dB for down state around the centre frequency 35.32GHz and -18.29dB for up state around the centre frequency 38.80GHz.

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A novel tunable low-pass filter based on MEMS and CPW

Cited by 6 publications

References 10 publications

Switchable Bandpass Filter with Capacitive MEMS Switches and EBG Structures

Switchable Bandpass Filter with Capacitive MEMS Switches and EBG Structures

Ku-band RF MEMS tunable comb line band reject filter on coplanar transmission line

RF MEMS tunable band reject filter using metamaterials

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