Millimeter-wave HBT MMIC synthesizers using subharmonically injection-locked oscillators

Suematsu, E.; Yagura, M.; Yamada, Atsushi; Kishimoto, Katsuhiro; Zhu, Yu; Twynam, J.K.; Sakuno, K.; Hasegawa, Tsuyoshi; Hasegawa, M.; Sato, H.

doi:10.1109/gaas.1997.628284

Cited by 6 publications

(1 citation statement)

References 9 publications

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“…However it is generally difficult to achieve a low phase noise PLL with low power dissipation in millimeter-wave band. To overcome the phase noise issues, the injectionlocked PLL (ILPLL) containing a sub-harmonic injection-locked oscillator (SILO) has been proposed [5][6]. The injected clock signal can be generated from a low-frequency PLL to synchronize the SILO, so the phase noise performance is determined by the low-frequency PLL.…”

Section: Introductionmentioning

confidence: 99%

A low-power subharmonic injection-locked oscillator using E/D-mode GaAs PHEMTs for Ka-band applications

Huang

Lin

Chang

et al. 2008

2008 Asia-Pacific Microwave Conference

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A subharmonic injection-locked oscillator (SILO) implemented by using 0.5 μm E/D-mode PHEMT process is demonstrated to achieve a Ka-band low-power and low phase noise source in this paper. Based on a 15 GHz cross-coupled oscillator, a signal having the frequency around 30 GHz can be generated in this SILO circuit through the push-push technique. A cascode amplifier is also arranged to be the output buffer for gaining the output amplitude of 30 GHz signal. The total power consumption of SILO is 24.5 mW under 2.5 V supply voltage. The measured free-running phase noise is -101 dBc/Hz at 1 MHz offset. With injecting a 2nd-order sub-harmonic signal (7.5 GHz) into this ILO, the output phase noise can be further improved to -127 dBc/Hz. The overall frequency multiplication factor is 4.

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Section: Introductionmentioning

confidence: 99%