Title :
Microwave whispering gallery mode dielectric resonator oscillator
Author :
Badnikar, S.L. ; Shanmugam, N. ; Murthy, V.R.K.
Author_Institution :
Defence Electron. Res. Lab., Hyderabad, India
Abstract :
This paper presents the design of a whispering gallery mode dielectric resonator and the design of a Ku band dielectric resonator oscillator using a commercial packaged HEMT as an active device. A novel feedback method is employed in the structural design of the DRO. A lumped element circuit model is used to represent coupling between cylindrical DR and a microstripline. As an illustrative example, the design of a 17.5 GHz DRO is discussed. The oscillator realised with this technique exhibits excellent phase noise performance, good power output and high temperature stability
Keywords :
HEMT circuits; circuit stability; dielectric resonator oscillators; feedback oscillators; hybrid integrated circuits; integrated circuit noise; microstrip circuits; microwave integrated circuits; microwave oscillators; phase noise; 17.5 GHz; Ku-band DRO; MIC; SHF; commercial packaged HEMT; cylindrical DR; dielectric resonator oscillator; feedback method; high temperature stability; lumped element circuit model; microstripline; microwave DRO; phase noise performance; whispering gallery mode DR; Coupling circuits; Dielectric devices; Feedback; HEMTs; Microstrip; Microwave devices; Microwave oscillators; Packaging; Phase noise; Whispering gallery modes;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841376
