A Wideband Variable Gain LNA With High OIP3 for 5G Using 40-nm Bulk CMOS

Elkholy, Mohamed; Shakib, Sherif; Dunworth, Jeremy; Aparin, V.; Entesari, Kamran

doi:10.1109/lmwc.2017.2779832

Cited by 111 publications

(34 citation statements)

References 7 publications

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“…Table compares the proposed LNA performance with the state‐of‐art silicon‐based LNAs. A figure of merit (FoM) is used to for the comparison . Compared to other work, the presented LNA achieved the high FoM with the best performance in terms of the NF, gain bandwidth, and the OIP3.…”

Section: Experiments Resultsmentioning

confidence: 98%

“…While such stringent design requirements can be fulfilled by III‐V compounds technologies, for example, InP and GaAs, silicon‐based technologies are preferred due to their characteristics of low cost, high yield, and high integration level. However, most of the previously reported BiCMOS/CMOS LNA have a minimum in‐band noise figure (NF) in the order of 3‐6 dB and an OIP3 of less than +15 dBm.…”

Section: Introductionmentioning

confidence: 99%

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A 22‐37 GHz low noise amplifier with 2.8 dB mean noise figure and +22.9 dBm output 3rd‐order intercept point for 5th generation applications

Xiang

2019

Micro & Optical Tech Letters

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This paper presents a wideband 22‐37 GHz low noise amplifier (LNA) realized in a 0.25 μm SiGe BiCMOS technology. The design incorporates additional noise matching between the cascode transistors to minimize the noise figure (NF) degradation. The second stage incorporates an active balun architecture with a tail inductor to improve the common‐mode rejection ratio (CMRR). To extend the bandwidth, a capacitive feed forward path is added at the second stage. The LNA presents a minimum in‐band NF of 2.3 dB from 22‐37 GHz. The achieved 3 dB‐gain bandwidth is larger than 15 GHz, with a peak gain of 20.8 dB at 28 GHz. The output 3rd‐order intercept point (OIP3) is +22.9 dBm for a total power consumption of 94 mW. The area of the core circuit is 0.35 × 0.47 mm2. To the author's knowledge, the LNA shows the best overall performance compared to the existing silicon‐based LNAs.

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Section: Experiments Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

A 22‐37 GHz low noise amplifier with 2.8 dB mean noise figure and +22.9 dBm output 3rd‐order intercept point for 5th generation applications

Xiang

2019

Micro & Optical Tech Letters

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“…This FOM covers the critical parameters for evaluation of an LNA for low power and NF, high gain, and wide‐bandwidth applications. Table 2 is a summary of the implemented 22.3 ~ 32 GHz CMOS LNA, and recently published remarkable CMOS LNAs with operation frequency around 24 GHz 13‐17 . Clearly, our LNA exhibits comparable gain and IP 1dB , the lowest NF and P DC , and the highest FOM.…”

Section: A 24 Ghz Cmos Lnamentioning

confidence: 91%

“…Then the Doppler frequency‐shift and time difference (between the received and the transmitted signals) are analyzed by the digital signal processing (DSP) module for estimation of the WL and flow velocity. The 24‐GHz‐band LNA with low‐power dissipation of 9.6 mW, high gain of 15 dB, and low noise figure (NF) of 3.1 dB is designed and implemented in a cost‐effective 0.18 μm CMOS technology 14‐18 . The LNA is beneficial for sensitivity enhancement of the Doppler radar.…”

Section: Introductionmentioning

confidence: 99%

A 24 GHz hydrology radar system capable of wide‐range surface velocity detection for water resource management applications

Lin

Chiu

Chang³

2020

Micro & Optical Tech Letters

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We demonstrate a 24 GHz hydrology radar system. The continuous‐wave Doppler radar is capable of noncontact and wide‐range surface‐flow velocity detection in various scenarios. The radar receives the reflected echo signal through a directional narrow‐beam antenna. After amplification and demodulation by the proposed low‐noise amplifier and the subharmonic down‐conversion mixer, respectively, the Doppler frequency‐shift is analyzed by the digital signal processing (DSP) module for estimation of the water flow velocity. Moreover, for water level detection, a phase‐locked loop with micro control unit (MCU)‐controlled division ratio is included in the RF module for generating a stable and tunable (or frequency modulation) 24‐GHz‐band transmitting signal with low phase noise. To verify the radar system, outdoor field tests have been conducted. The measured results are consistent with the theoretical values, and the results of both the float method and the commercial handheld (Stalker Pro II) surface velocity radar. In the condition of water ripple lower than 3 cm, the radar functions well for flow speed range of 0.3 ~ 34.6 m/s. Overall, the hydrology radar is suitable for surface‐flow velocity detection (especially in bad weather) and water resource management (such as water‐level detection).

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“…The measurement results for maximum gain settings (I 01 = 600 µA and I 02 = 50 µA) are plotted in Figure 13, obtaining a value of -20.18 dBm for the input P 1dB . A summary of the performance of the proposed RF-VGA versus I 02 is presented in Table 1 for I 01 = 550 µA and V DC = ±1.5 V. A brief overview of similar works available in the literature is given in Table 2 [23][24][25][26][27][28][29][30]. With the exception of [26], which uses 40 nm technology, our work has better bandwidth.…”

Section: Measurementsmentioning

confidence: 99%

A Compact Size Wideband RF-VGA Based on Second Generation Controlled Current Conveyors

et al. 2020

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This paper presents a methodology to design a wideband radio frequency variable gain amplifier (RF-VGA) in a low-cost SiGe BiCMOS 0.35 μm process. The circuit uses two Class A amplifiers based on second-generation controlled current conveyors (CCCII). The main feature of this circuit is the wideband input match along with a reduced NF (5.5–9.6 dB) and, to the authors’ knowledge, the lowest die footprint reported (62 × 44 μm2 area). The implementation of the RF-VGA based on CCCII allows a wideband input match without the need of passive elements. Due to the nature of the circuit, when the gain is increased, the power consumption is reduced. The architecture is suitable for designing wideband, low-power, and low-noise amplifiers. The proposed design achieves a tunable gain of 6.7–18 dB and a power consumption of 1.7 mA with a ±1.5 V DC supply. At maximum gain, the proposed RF-VGA covers from DC up to 1 GHz and can find application in software design radios (SDRs), the low frequency medical implant communication system (MICS) or industrial, scientific, and medical (ISM) bands.

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A Wideband Variable Gain LNA With High OIP3 for 5G Using 40-nm Bulk CMOS

Cited by 111 publications

References 7 publications

A 22‐37 GHz low noise amplifier with 2.8 dB mean noise figure and +22.9 dBm output 3rd‐order intercept point for 5th generation applications

A 22‐37 GHz low noise amplifier with 2.8 dB mean noise figure and +22.9 dBm output 3rd‐order intercept point for 5th generation applications

A 24 GHz hydrology radar system capable of wide‐range surface velocity detection for water resource management applications

A Compact Size Wideband RF-VGA Based on Second Generation Controlled Current Conveyors

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