Improving the quality factor of the coplanar waveguide resonator. Issue 6 (June 2015)

• Record Type: Journal Article
• Authors: Maricar, Mohamed Ismaeel; Khalid, Ata; Cumming, David S. R.; Oxley, Christopher H.
• Is Part Of: Microwave and optical technology letters. Volume 57:Issue 6(2015:Jun.)
• Page Start: 1323
• Page End: 1325
• Publication Date: 2015-06
• Subjects: diamond stub resonators -- radial stub resonator -- Q‐factor -- milli‐metric wave -- GaAs material; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.29082
• Languages: English
• ISSNs: 0895-2477

Abstract

ABSTRACT: A novel method of introducing a notch at a point of high magnetic field in a coplanar waveguide (cpw) radial and diamond stub resonator to increase the quality factor (Q) was analyzed. For comparison, both radial‐ and diamond‐shaped cpw resonators with and without notches were fabricated on gallium arsenide (GaAs) semi‐insulating substrate at the James Watt Nanofabrication Centre and tested in the milli‐metric laboratory at University of Glasgow. The notch increased the loaded Q factor of the diamond resonator by approximately 28% and good agreement was obtained between the measured and simulated loaded Q for both cpw radial and diamond resonators. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1323–1325, 2015