@inproceedings{398022a1fb264035b199d22418021cd5,
title = "A low phase noise quadrature ring oscillator using 0.5μm GaN-on-Si HEMT",
abstract = "A quadrature ring oscillator designed for wireless communications has been and implemented in 0.5 μm GaN-on-Si HEMT technology. Based on the large-signal GaN HEMT and the transmission line models on silicon substrate, the oscillation frequency and output power can be predicted accurately in the simulation. The operating frequency of the two-stage ring oscillator is close to 5.76 GHz. By using a spiral inductor to be a resonated load in the differential pair, the measured output power of 9.9 dBm can be achieved for each output port without using buffer amplifiers at a 10-V dc supply. The oscillator has an output phase noise of -116 dBc/Hz at 1-MHz offset frequency. A 2 nd-order subharmonic injection technique was used to further improve the phase noise performance. The improved phase noise is -131 dBc/Hz at 1-MHz offset under injection locking status.",
keywords = "GaN HEMT, Phase noise, Quadrature signal, Ring oscillator",
author = "Huang, {Fan Hsiu} and Lee, {Guan Ting} and Chiu, {Hsien Chin}",
year = "2013",
language = "英语",
isbn = "9782874870323",
series = "European Microwave Week 2013, EuMW 2013 - Conference Proceedings; EuMIC 2013: 8th European Microwave Integrated Circuits Conference",
pages = "528--531",
booktitle = "European Microwave Week 2013, EuMW 2013 - Conference Proceedings; EuMIC 2013",
note = "2013 8th European Microwave Integrated Circuits Conference, EuMIC 2013 - Held as Part of 16th European Microwave Week, EuMW 2013 ; Conference date: 06-10-2013 Through 08-10-2013",
}