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Temperature drift compensation technique for a hybrid LTCC oscillator at 20GHz
Publikationstyp
Journal Article
Date Issued
2009-10
Sprache
English
Author(s)
Institut
TORE-URI
Start Page
1820
End Page
1823
Citation
European Microwave Conference (EuMC 2009)
Contribution to Conference
Publisher DOI
A temperature drift compensation method for a K-band LTCC hybrid voltage-controlled oscillator is presented. After an initial review of the vertically integrated resonator structure, an extracted temperature drift profile of the ceramic substrate is utilized to estimate the temperature dependence of the oscillation frequency of the entire circuit. Adding a low sensitivity tuning structure combined with a low complexity thermistor-network, the temperature shift can be significantly reduced from plusmn50 MHz to about plusmn5 MHz in an interval of 50 K, entirely compensating the drift at around room temperature. Finally, the impact of the additional tuning structure on the phase noise performance is analyzed.
Subjects
cavity resonators
ceramic packaging
circuit noise
circuit tuning
compensation
microwave oscillators
phase noise
thermistors
voltage-controlled oscillators
temperature drift compensation
K-band hybrid voltage-controlled oscillator
LTCC hybrid voltage-controlled oscillator
vertically integrated resonator structure
ceramic substrate
oscillation frequency
low complexity thermistor-network
low sensitivity tuning structure
low temperature co-fired ceramics
rectangular cavity resonator
frequency 20 GHz
Temperature sensors
Voltage-controlled oscillators
Temperature dependence
Frequency estimation
Circuit optimization
Tuning
K-band
Ceramics
Phase noise
Performance analysis