K‐band RF‐MEMS uniplanar reconfigurable‐bandwidth bandpass filter using multimodal immittance inverters. Issue 11 (1st May 2013)

• Record Type: Journal Article
• Authors: Contreras, A.; Ribó, M.; Pradell, L.; Casals‐Terré, J.; Giacomozzi, F.; Iannacci, J.
• Is Part Of: Electronics letters. Volume 49:Issue 11(2013)
• Page Start: 704
• Page End: 706
• Publication Date: 2013-05-01
• Subjects: band‐pass filters -- Butterworth filters -- inductance -- invertors -- micromechanical resonators -- microswitches -- microwave filters -- ohmic contacts -- slot lines; insertion losses -- Butterworth response -- relative‐bandwidth change -- RF‐MEMS ohmic‐contact switches -- MII length -- coupling inductance -- CPW‐slotline multimodal immittance inverters -- inductively‐coupled half‐wavelength slotline resonators -- reconfigurable bandwidth -- K‐band RF‐MEMS uniplanar second‐order bandpass filter -- K‐band RF‐MEMS uniplanar reconfigurable‐bandwidth bandpass filter; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.0681
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A K‐band RF‐MEMS uniplanar second‐order bandpass filter with reconfigurable bandwidth is presented. The filter is based on inductively‐coupled half‐wavelength slotline resonators and CPW‐slotline multimodal immittance inverters (MIIs). The coupling inductance and the MII length are reconfigured using RF‐MEMS ohmic‐contact switches. Experimental results show a 3 dB relative‐bandwidth change from 4.5 to 8.5% (maintaining a Butterworth response), and insertion losses of 5.2 and 3.7 dB for either state.