HEMT Oscillators for Millimeter Wave Systems in Coplanar Waveguide Technology

Kudszus, S.; Haydl, W.H.; Bangert, A.; Osorio, R.; Neumann, M.; Veweyen, L.; Hulsmann, A.; Schlechtweg, M.

doi:10.1109/euma.1998.338251

1998 28th European Microwave Conference 1998

DOI: 10.1109/euma.1998.338251

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HEMT Oscillators for Millimeter Wave Systems in Coplanar Waveguide Technology

S. Kudszus

W.H. Haydl

A. Bangert

et al.

Abstract: The potential of HEMT oscillators as signal sources for millimeter wave systems was investigated. Free running, varactor tuned and subharmonic injection locked oscillators, based on 0.154um AlGaAs/InGaAs/GaAs HEMTs have been developed at millimeter wave frequencies from 35 to 94 GHz.Integration of these oscillators with amplifiers in a coplanar environment has been demonstrated.

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Cited by 9 publications

References 14 publications

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A wideband subharmonically injection‐locked frequency synthesizer for LMDS

Xue

2001

Micro & Optical Tech Letters

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A low‐cost wideband subharmonically injection‐locked frequency synthesizer for local multipoint distribution system (LMDS) down‐converter applications is introduced in this letter. This synthesizer consists of a 2.0 GHz PLL synthesizer, and is a general‐purpose bipolar transistor VCO at 5.8 GHz. The 5.8 GHz VCO is not only subharmonically injection locked by a 2.0 GHz PLL synthesizer, but also, the varactor diode's voltage is adaptively controlled by the 2.0 GHz PLL controlling voltage via a suitable converter at the same time. In this way, real‐time wideband locking can be attained. When third subharmonically injection locked, the output power of the synthesizer is more than 7.5 dBm, with a bandwidth of more than 25%. At 5.8 GHz, the power is 8.5 dBm, and the phase noise is −93 dBc/Hz at an offset frequency of 100 kHz. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 310–312, 2001.

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A wideband subharmonically injection‐locked frequency synthesizer for LMDS

Xue

2001

Micro & Optical Tech Letters

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High Frequency Circuits Based on GaAs Phemt Technology for Modern Sensor and Communication Systems

Schlechtweg

2000

International Journal of High Speed Electronics and Systems

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W-band HEMT-oscillator MMICs using subharmonic injection locking

Kudszus

Berceli²,

Tessmann

et al. 2000

IEEE Trans. Microwave Theory Techn.

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HEMT Oscillators for Millimeter Wave Systems in Coplanar Waveguide Technology

Cited by 9 publications

References 14 publications

A wideband subharmonically injection‐locked frequency synthesizer for LMDS

A wideband subharmonically injection‐locked frequency synthesizer for LMDS

High Frequency Circuits Based on GaAs Phemt Technology for Modern Sensor and Communication Systems

W-band HEMT-oscillator MMICs using subharmonic injection locking

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