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2. Optimization of distributed MEMS transmission-line phase shifters – U-band and W-band design;Barker;IEEE Trans. Microw. Theory Technol.,2000
3. An introduction to defected ground structures in microstrip circuits;Breed;High Freq. Electron.,2008
4. A novel reconfigurable impedance matching network using DGS and MEMS switches for millimeter-wave applications;Fouladi,2008
5. A novel design of tunable band-stop filter using MEMS technology;Huang,2009