RF-MEMS-based switchable low pass filter

2003 ◽  
Author(s):  
S. Kanthamani ◽  
R. SenthilNathan ◽  
Gowri Kumar ◽  
S. RamyaShankari ◽  
V, Sigappi ◽  
...  
Keyword(s):  
Rf Mems ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

scholarly journals Tunable Lowpass Filter with RF MEMS Capacitance and Transmission Line

2012 ◽  
Vol 2012 ◽  
pp. 1-5
Author(s):  
Shimul C. Saha ◽  
Ulrik Hanke ◽  
Håkon Sagberg ◽  
Tor A. Fjeldly ◽  
Trond Sæther
Keyword(s):  
Transmission Lines ◽  
Parallel Plate ◽  
Rf Mems ◽  
Cutoff Frequency ◽  
Lowpass Filter ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Measurement Results ◽  
Low Pass ◽  
Lumped Elements

We have presented an RF MEMS tuneable lowpass filter. Both distributed transmission lines and RF MEMS capacitances were used to replace the lumped elements. The use of RF MEMS capacitances gives the flexibility of tuning the cutoff frequency of the lowpass filter. We have designed a low-pass filter at 9–12 GHz cutoff frequency using the theory of stepped impedance transmission lines. A prototype of the filter has been fabricated using parallel plate capacitances. The variable shunt capacitances are formed by a combination of a number of parallel plate RF MEMS capacitances. The cutoff frequency is tuned from C to X band by actuating different combinations of parallel capacitive bridges. The measurement results agree well with the simulation result.

Design of Programmable Wideband Low Pass Filter with Continuous-Time/Discrete-Time Hybrid Architecture

2017 ◽  
Vol E100.C (10) ◽  
pp. 858-865 ◽  
Author(s):  
Yohei MORISHITA ◽  
Koichi MIZUNO ◽  
Junji SATO ◽  
Koji TAKINAMI ◽  
Kazuaki TAKAHASHI
Keyword(s):  
Discrete Time ◽  
Continuous Time ◽  
Hybrid Architecture ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

ANALYSIS AND IMPROVEMENT TECHNIQUES FOR THE TRANSFER FUNCTION OF A PLANAR LOW - PASS FILTER

2016 ◽  
Vol 15 (12) ◽  
pp. 2579-2586
Author(s):  
Adina Racasan ◽  
Calin Munteanu ◽  
Vasile Topa ◽  
Claudia Pacurar ◽  
Claudia Hebedean
Keyword(s):  
Transfer Function ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass
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