Stability analysis and demonstration of an X-band GaN power amplifier MMIC

Heijningen, M. van; Hek, A.P. de; Vliet, F.E. van; Dellier, S.

doi:10.1109/eumic.2016.7777530

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…where P and R are the factors jointly determined by the internal and external elements of the model [26]. Since the noise current source is not independent, C is the noise correlation coefficient of Ig and Id.…”

Section: Stability Handlementioning

confidence: 99%

A K-band MMIC low noise amplifier in GaN-on-Si 100-nm technology for MIMO radar receivers

Yang

Zhang

Liu

et al. 2022

IEICE Electron. Express

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A K-band low noise amplifier (LNA) with low and flat noise figure (NF) is proposed in this letter. The LNA is designed as the first stage of an RF receiver in a frequency modulated continuous wave (FMCW) multiple-in multiple-out (MIMO) radar system for marine vessel monitoring and airspace unmanned aerial vehicle (UAV) monitoring. The multi-antenna structure at the receiving end of the MIMO radar implies higher sensitivity. The LNA is fabricated using a 100-nm GaN high electron mobility transistor (HEMT) process with a chip area of 2.2 mm 2 . By analyzing the noise equivalent circuit model of a GaN-on-Si HEMT and optimizing the matching network, the proposed LNA achieves a measured average gain of 17.2 dB, an NF of 2.0-2.3 dB over the frequency range from 18 to 22.5 GHz. With a power sweep measurement, this LNA achieves an P1dB of 10.5 dBm and an OIP3 of 19 dBm at 20 GHz. The DC consumption is 220 mW under 5 V power supply.

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Section: Stability Handlementioning

confidence: 99%

A K-band MMIC low noise amplifier in GaN-on-Si 100-nm technology for MIMO radar receivers

Yang

Zhang

Liu

et al. 2022

IEICE Electron. Express

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“…As a third example, we consider the small-signal stability analysis of an X-band PA designed in the 0.25µm GaN HEMT technology GH25-10 of UMS [27]. The circuit and its design are described in great detail in [18]. The resulting MMIC is shown in Fig.…”

Section: Example 3: Two-stage Power Amplifiermentioning

confidence: 99%

“…The PA is a two-stage design where the second stage consists of two branches with each two transistors in parallel. In simulation, the second stage of the PA demonstrated an odd-mode instability [18], so a stabilisation resistor was added between the drains of the top and bottom halves of the second stage of the PA (as indicated in the Fig. ).…”

Section: Example 3: Two-stage Power Amplifiermentioning

confidence: 99%

“…The odd-mode instability can be resolved by decreasing the resistance of R stab [18]. In a second stability analysis, we determined the stability of the PA for R stab = 25Ω.…”

Section: Example 3: Two-stage Power Amplifiermentioning

confidence: 99%

“…On small enough intervals, rational approximation can be performed accurately in low degree, and if unstable poles occur their physical character is checked by re-modelling the FRF locally around each of them and verifying that the unstable pole remains present in the new model. This procedure is commercially available in the STAN tool [16], [17] and successful applications on several examples are reported in [18]- [21].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Model-Free Closed-Loop Stability Analysis: A Linear Functional Approach

Cooman¹,

Seyfert²,

Olivi³

et al. 2018

IEEE Trans. Microwave Theory Techn.

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Performing a stability analysis during the design of any electronic circuit is critical to guarantee its correct operation. A closed-loop stability analysis can be performed by analysing the impedance presented by the circuit at a well-chosen node without internal access to the simulator. If any of the poles of this impedance lie in the complex right half-plane, the circuit is unstable. The classic way to detect unstable poles is to fit a rational model on the impedance. In this paper, a projection-based method is proposed which splits the impedance into a stable and an unstable part by projecting on an orthogonal basis of stable and unstable functions. When the unstable part lies significantly above the interpolation error of the method, the circuit is considered unstable. Working with a projection provides one, at small cost, with a first appraisal of the unstable part of the system. Both small-signal and large-signal stability analysis can be performed with this projection-based method. In the small-signal case, a low-order rational approximation can be fitted on the unstable part to find the location of the unstable poles.Comment: Longer version of the paper published in IEEE Transactions on Microwave Theory and Technique

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Design Progress and Technology Maturity: Trends in Compound Semiconductor MMICs

Mahon

2021

2021 IEEE Asia-Pacific Microwave Conference (APMC)

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Stability analysis and demonstration of an X-band GaN power amplifier MMIC

Cited by 7 publications

References 7 publications

A K-band MMIC low noise amplifier in GaN-on-Si 100-nm technology for MIMO radar receivers

A K-band MMIC low noise amplifier in GaN-on-Si 100-nm technology for MIMO radar receivers

Model-Free Closed-Loop Stability Analysis: A Linear Functional Approach

Design Progress and Technology Maturity: Trends in Compound Semiconductor MMICs

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