Stability analysis and numerical simulation of multidevice amplifiers

Ohtomo, M.

doi:10.1109/22.238513

Cited by 126 publications

(45 citation statements)

References 5 publications

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“…Stability of the design is checked at distinctive internal nodes using the method described in [6] as internal (odd-mode) oscillation loops can exist within this multi-cell topology. In that case the conventional k-factor method would not be sufficient to ensure stability.…”

Section: Circuit Designmentioning

confidence: 99%

A 27GHz, 31dBm power amplifier in a 0.25μm SiGe:C BiCMOS technology

Essing

Leenaerts

Mahmoudi

2014

2014 IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM)

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This paper describes an 8-way in-phase current combining power amplifier (PA) for Ka-band applications implemented in a 0.25um SiGe:C BiCMOS technology. The PA achieves a saturated output power of 29.7dBm at 27GHz with a maximum PAE of 10.5%. After applying load-pull, this output power increases further to a level of 31dBm with a maximum PAE of 13%. The small-signal gain is 24.5dB and the saturated gain is more than 14.7dB in the band of interest. The consumed area is only 2.83mm 2 .

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Section: Circuit Designmentioning

confidence: 99%

A 27GHz, 31dBm power amplifier in a 0.25μm SiGe:C BiCMOS technology

Essing

Leenaerts

Mahmoudi

2014

2014 IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM)

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“…Therefore an algorithm after Ohtomo [9] was implemented, dividing the circuit into a passive and an active sub network. For all ports between these sub networks, stability conditions were formulated.…”

Section: Stability Considerationmentioning

confidence: 99%

Design of balanced hybrid C band MESFET-based frequency tripler

Bunz

Kompa

2002

2002 32nd European Microwave Conference

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“…In [7] a reformulation of the Rollett proviso was proposed that makes use of the Nyquist criterion to check the existence of RHP zeros in the characteristic equation of the twoport network. This methodology allows us to implement in a CAD tool a check of the unconditional stability of a two-port network composed of several active devices by using the Nyquist criterion for a multiloop system [8] if the measured S parameters of each device are available or the Nyquist criterion to evaluate zeros of subnetwork determinants [5,6,9] if small-signal equivalent circuits of each device were extracted.…”

Section: Introductionmentioning

confidence: 99%