Fully integrated 94-GHz subharmonic injection-locked PLL circuit

Author

Kudszus, S. ; Neumann, M. ; Berceli, T. ; Haydl, W.H.

Author_Institution

Fraunhofer-Inst. for Appl. Solid State Phys., Freiburg, Germany

Volume

10

Issue

2

fYear

2000

fDate

2/1/2000 12:00:00 AM

Firstpage

70

Lastpage

72

Abstract

A new integrated W-band frequency source MMIC is presented which consists of a 94 GHz voltage-controlled oscillator (VCO) with large tuning range and a phase comparator, forming a subharmonic injection-locked phase-locked loop (ILPLL). The ILPLL combines conventional injection-locking with an additional phase control loop to improve the locking range of the oscillator significantly. The 4th subharmonic frequency is used as the reference signal. The locking range was increased from 80 MHz without ILPLL to 4.5 GHz with ILPLL by closing the loop with an external DC amplifier. A phase noise of -83 dBc/Hz at 100 kHz offset was achieved. Pseudomorphic GaAs HEMT´s and a coplanar circuit topology were used to allow integration into complex single-chip subsystems and flip-chip packaging

Keywords

HEMT integrated circuits; III-V semiconductors; circuit tuning; field effect MIMIC; gallium arsenide; harmonics; injection locked oscillators; millimetre wave oscillators; phase detectors; phase locked loops; voltage-controlled oscillators; 94 GHz; EHF; GaAs; GaAs PHEMT; MM-wave frequency source; VCO; W-band; coplanar circuit topology; fourth subharmonic frequency; frequency source MIMIC; phase comparator; phase control loop; phase noise; phase-locked loop; pseudomorphic GaAs HEMT; subharmonic injection-locked PLL circuit; tuning range; voltage-controlled oscillator; Circuit optimization; Frequency; Gallium arsenide; Injection-locked oscillators; MMICs; Phase control; Phase locked loops; Phase noise; Tuning; Voltage-controlled oscillators;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.843104

Filename

843104