Proceedings ArticleDOI
Highly Stabilized, Ultra-Low Noise FET Oscillator with Dielectric Resonator
G. Lan,D. Kalokitis,E. Mykietyn,E. Hoffman,F. Sechi +4 more
- pp 83-86
TLDR
In this article, a temperature-stabilized ultra-low noise GaAs FET oscillator, using a temperature stabilized dielectric resonator in the feedback circuit, was developed.Abstract:
A highly stabilized ultra-low noise GaAs FET oscillator, using a temperature stabilized dielectric resonator in the feedback circuit, has been developed. A key factor for achieving high stability and low noise is a very high loaded Q (8000) . The oscillator operates at 4 GHz with a power output of 11.5 dBm, a frequency temperature coefficient of +- 0.02 ppm/°C, and a SSB N/C ratio of -130 dBc/Hz and -146 dBc/Hz at 10 KHz and 100 KHz off carrier, respectively. The oscillator is varactor tunable over a 1500 KHz bandwidth.read more
Citations
More filters
Journal ArticleDOI
Design of Low Phase-Noise Microwave Oscillator and Wideband VCO Based on Microstrip Combline Bandpass Filters
Chao-Hsiung Tseng,Chih-Lin Chang +1 more
TL;DR: In this paper, the peak frequency of the complex quality factor (Qsc) was adopted for oscillator design, and two filter-based oscillators were implemented at the Qsc-peak and group-delay-peak frequencies, respectively.
Journal ArticleDOI
Optimization of an ultra low-phase noise sapphire-SiGe HBT oscillator using nonlinear CAD
TL;DR: The electrical and noise performances of a 0.8 /spl mu/m silicon germanium (SiGe) transistor optimized for the design of low phase-noise circuits are described and a nonlinear model developed for the transistor and its use for theDesign of a low-phase noise C band sapphire resonator oscillator is reported.
Journal ArticleDOI
An efficient design method of microwave oscillator circuits for minimum phase noise
TL;DR: In this article, the authors describe a design method of high-Q microwave oscillator circuits that maximizes the energy stored in the resonator and its transfer to the controlling input voltage port of the transistor.
Journal ArticleDOI
An Injection- and Frequency-Locked Loop for Reducing Phase Noise of Wideband Oscillators
TL;DR: In this paper, an injection-and frequency-locked loop (IFLL) was proposed to reduce phase noise of wideband oscillators, which uses an injectionlocked oscillator instead of a high-gain amplifier and a variable phase shifter in the FLL to amplify and phase shift the feedback signal.
Journal ArticleDOI
Frequency Stability of L-Band, Two-Port Dielectric Resonator Oscillators
TL;DR: In this article, a two-port resonator design incorporated into a basic feedback loop oscillator configuration, was evaluated and showed state-of-the-art, close-to-carrier phase noise performance.
References
More filters
Proceedings ArticleDOI
A Highly Stabilized GaAs FET Oscillator Using a Dielectric Resonator Feedback Circuit in 9-14 GHz
TL;DR: In this article, a new type of highly stabilized GaAs FET oscillator using a dielectric resonator and a stabilization resistor in the feedback circuit has been developed, which has a high external quality factor Q/sub ex/ for more than 1000 MHz with no hysteresis phenomena.
Journal ArticleDOI
A Highly Stabilized Low-Noise GaAs FET Integrated Oscillator with a Dielectric Resonator in the C Band
TL;DR: In this article, a GaAs FET integrated oscillator with a BaO-TiO/sub 2/ system ceramic dielectric resonator provides a highfrequency-stabilized low-noise compact microwave power source.
Proceedings ArticleDOI
Low Noise Design of Dielectric Resonator FET Oscillators
TL;DR: In this article, an experimental comparison has been made between different ORO circuits with FET's of various origins and size around 11 GHz, and the most pertinent conclusions are given together with theoretical explanations of the observed results.
Proceedings ArticleDOI
X and Ku-Band Dual Gate MESFET Oscillators Stabilized Using Dielectric Resonators
Christos Tsironis,Paul Lesartre +1 more
TL;DR: In this paper, stable X-and Ku-band oscillators have been realized using GaAs dual-gate MESFETs with a geometry of 2 × 0.8?m × 150?m.
Proceedings ArticleDOI
Miniature Ceramic Circuit Components for Ku Band Receivers
TL;DR: In this article, a 14 GHz receiver was developed using the Miniature Ceramic Circuit (MCC) technology, which combines many of the desirable characteristics of the monolithic approach and with the flexibility of the hybrid approach.