DocumentCode :
3006295
Title :
Design of dielectric resonators oscillator for mobile WiMAX at 2,3 GHz with additional coupling λ/4
Author :
Wibisono, Gunawan ; Firmansyah, Teguh
Author_Institution :
Dept. of Electr. Eng, UI, Depok, Indonesia
fYear :
2011
fDate :
21-24 Nov. 2011
Firstpage :
489
Lastpage :
493
Abstract :
Oscillator is the source of energy for all microwave communication systems. In this research, oscillator using dielectric resonator oscillator (DRO) will be designed. Comparing to other types of oscillators, DRO has a bigger value Q factor. Designed DRO is used as the carrier for the mobile WiMAX 802.16e at frequency 2,3 GHz. The dielectric resonator Trans-Tech 8500 Series Temperature Stable will be used. To obtain a high power fundamental, it is proposed to use an additional coupling λ/4 and double-stub as matching for reducing the harmonic power. Meanwhile, to obtain low phase noise, BFR 380T BJT low-phase noise with the bias of Vcc = 5 V, Vce = 3 V, and Ic = 40 mA is used. DRO is simulated using ADS software. The phase noise is -144 dBc / Hz at 10 kHz frequency carrier with a value of Q factor is 7316. The output power at the fundamental frequency is 13 dBm and second harmonic power is -40 dBm. A Monte-Carlo Yield Analysis simulation is used to simulate the performances varied with all the variation of tolerance. It is shown from Monte-Carlo-Yield Analysis simulation, DRO with an additional coupling λ/4 producing variations as same as specification with an average percentage is 84.5%. It is also shown from the results that the designed DRO with coupling λ/4 is better than DRO without additional coupling λ/4 with single-stub matching.
Keywords :
Monte Carlo methods; Q-factor; WiMax; bipolar transistors; dielectric resonator oscillators; mobile radio; phase noise; ADS software; BFR 380T BJT low-phase noise; DRO design; Monte-Carlo yield analysis simulation; Q-factor; Trans-Tech 8500 series temperature stable; current 40 mA; dielectric resonators oscillator; double-stub matching; frequency 10 kHz; frequency 2 GHz; frequency 3 GHz; harmonic power reduction; microwave communication systems; mobile WiMAX 802.16e; voltage 3 V; voltage 5 V; Couplings; Dielectrics; Harmonic analysis; Phase noise; Power system harmonics; Transistors; ADS; DRO; Q factor; phase noise; power fundamental; power harmonic;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
TENCON 2011 - 2011 IEEE Region 10 Conference
Conference_Location :
Bali
ISSN :
2159-3442
Print_ISBN :
978-1-4577-0256-3
Type :
conf
DOI :
10.1109/TENCON.2011.6129152
Filename :
6129152
Link To Document :
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