A <scp>30‐GHz</scp> low‐power <scp>CMOS LNA</scp> for <scp>5G</scp> communication systems

Liu, Jiye; Wu, Liang; Zhu, Zhangming; Liu, Shubin

doi:10.1002/mop.32660

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…Traditionally, mm-wave LNAs usually use transmission lines as matching elements, which were relatively intuitive and easy to implement, but the circuit area was relatively large unless multiple meanders for reducing size. 1,2 Furthermore, in single-ended circuit design, spiral inductor structures can be used for compact circuits, [3][4][5][6] and the coupling between multiple inductors can also be utilized to further reduce the chip area with good performance. 7,8 However, the complex coupling exacerbates the mutual influence between the front and rear stages of the circuit, resulting in a decrease in the unilateralization of the circuit and requiring more repetitive tuning.…”

Section: Introductionmentioning

confidence: 99%

An analytical approach to designing millimeter‐wave LNAs with transformer‐based matching networks

Yu,

Wen

2024

Micro & Optical Tech Letters

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In this article, an analytical method for designing transformer matching network of millimeter‐wave (mm‐wave) low noise amplifier (LNA) is presented. In the circuit design, neutralizing capacitors (NCs) structure is used to mitigate the intrinsic gate‐drain feedback capacitance in the transistor for increasing the reverse isolation and available gain, thus allowing the common source (CS) structure can be regarded as an unilateralized active amplification part. The equivalent circuit of the active amplification part and the matching transformer network is modeled, then the analytical matching equations can be established, and the required matching transformer parameter can be determined quickly. As a proof of concept, a Ka‐band LNA operating at 37–43 GHz is designed and implemented in 65 nm complementary metal oxide semiconductor. The measured results show that the small signal gain of the circuit is 19.2–20.5 dB at 37–43 GHz. The noise figure (NF) in the operating band is 3.2–4.2 dB, and the minimum NF is 3.2 dB at 40.2 GHz. The chip area is only 0.08 mm2 excluding pads.

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Section: Introductionmentioning

confidence: 99%

An analytical approach to designing millimeter‐wave LNAs with transformer‐based matching networks

Yu,

Wen

2024

Micro & Optical Tech Letters

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A compact Ka‐band limiter‐low noise amplifier MMIC with high power capability

Yang

Zhang

Wang

et al. 2022

Micro & Optical Tech Letters

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This paper presents a 30–36 GHz limiter low‐noise amplifier (limiter‐LNA) MMIC for high power and high mobility millimeter‐wave radar systems. The PIN‐diode limiter network and the LNA are codesigned to realize high input‐power handling capability, good small‐signal performance, and small chip area. A two‐state matching capacitor is presented to improve both the input‐power handling capability at the high input‐power level and the input return loss at the small‐signal level. The proposed circuit is fabricated with a combined PIN/0.15‐µm‐GaAs‐pHEMT process. The limiter‐LNA is capable of handling 39 dBm continuous wave (CW) input‐power without failure with only two limiter stages. The measured noise figure is 1.8–2.5 dB, the small‐signal gain is 18.5 ± 0.5 dB, the output power at 1 dB compression point is larger than 11 dBm, and the dc power consumption is 72 mW. The chip area, including testing pads, is only 2.1 mm × 1.0 mm. This limiter‐LNA MMIC is believed to have the highest input‐power handling capability and smallest chip area among limiter‐LNA MMICs at this frequency range reported up to date.

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Bulk acoustic wave resonance characteristic modified by reducing the defects in ZnO-based solidly mounted resonators

Zhang

Guo

et al. 2022

Materials Science in Semiconductor Processing

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A 30‐GHz low‐power CMOS LNA for 5G communication systems

Cited by 5 publications

References 17 publications

An analytical approach to designing millimeter‐wave LNAs with transformer‐based matching networks

An analytical approach to designing millimeter‐wave LNAs with transformer‐based matching networks

A compact Ka‐band limiter‐low noise amplifier MMIC with high power capability

Bulk acoustic wave resonance characteristic modified by reducing the defects in ZnO-based solidly mounted resonators

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