Abstract
A different approach for phase-noise reduction of a HEMT VCDRO (voltage-controlled dielectric resonator oscillator) with coupled microstriplines to tune the oscillating frequency is investigated. Two HEMT VCDROs of 9.8 GHz are manufactured in the same configuration, except for the frequency-control circuit, in order to empirically demonstrate the phase-noise reduction. The experimental results show that the phase-noise reduction can be enhanced 8 dBc/Hz at 100-KHz offset frequency by using a frequency-controlled circuit with coupled microstriplines, as compared to the conventional VCDRO.
Original language | English |
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Pages (from-to) | 515-518 |
Number of pages | 4 |
Journal | Microwave and Optical Technology Letters |
Volume | 47 |
Issue number | 6 |
DOIs | |
State | Published - 20 Dec 2005 |
Keywords
- Coupled lines
- DRO
- Phase noise
- VCDRO