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   Articles with "passive intermodulation" as a keyword



Passive intermodulation model and experimental verification of cascaded microwave devices

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recommendations! Published in 2017 at "International Journal of Microwave and Wireless Technologies"

DOI: 10.1017/s1759078717000186

Abstract: Passive intermodulation (PIM) is a complex problem in high-power microwave devices and satellite communications. In this paper, an effective calculation method is proposed for predicting PIM power levels of the cascaded microwave devices. First of… read more here.

Keywords: microwave devices; model; cascaded microwave; passive intermodulation ... See more keywords

Modelling of the passive intermodulation in coaxial connectors with broadband signal excitation

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recommendations! Published in 2019 at "Electronics Letters"

DOI: 10.1049/el.2019.0705

Abstract: Theoretical calculations and simulations are introduced to explain the passive intermodulation power level rise (PLR) in coaxial connectors with broadband signal excitation for the third-order intermodulation products. An equivalent model is developed to describe the… read more here.

Keywords: coaxial connectors; connectors broadband; passive intermodulation; broadband signal ... See more keywords

Bit Error Rate Performance for High‐Order Passive Intermodulation Based on Modified Cauchy Distribution Model

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recommendations! Published in 2025 at "Electronics Letters"

DOI: 10.1049/ell2.70450

Abstract: Passive intermodulation (PIM) has become a threat to high‐power and multiple‐channel communication systems as self‐interference sources. A communication channel model with high‐order PIM interference is proposed in this letter. Considering the nonignorable additive white Gaussian… read more here.

Keywords: bit error; based modified; high order; passive intermodulation ... See more keywords
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Utilizing Passive Intermodulation Response of Frequency-Modulated Continuous-Wave Signal for Target Identification and Mapping

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recommendations! Published in 2021 at "IEEE Sensors Journal"

DOI: 10.1109/jsen.2021.3084205

Abstract: In this paper, a passive-intermodulation-based tracking system working with a frequency-modulated continuous-wave (FMCW) is proposed for target identification and localization. Signals in the microwave range are chosen to realize ranging purposes for the benefits of… read more here.

Keywords: passive intermodulation; modulated continuous; target; frequency modulated ... See more keywords

Reconfigurable Passive Intermodulation Behavior on Nickel-Coated Cell Array

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recommendations! Published in 2017 at "IEEE Transactions on Electromagnetic Compatibility"

DOI: 10.1109/temc.2017.2654818

Abstract: This paper presents a phenomenological study about the passive intermodulation (PIM) behavior on a reconfigurable nickel-coated cell array. An artificial transmission line with reconfigurable nonlinearity is employed for demonstrating PIM generation and propagation behavior. This… read more here.

Keywords: passive intermodulation; pim; nickel coated; cell array ... See more keywords

Analysis of Passive Intermodulation Distortion Caused by Asymmetric Electrical Contact

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recommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2022.3140447

Abstract: This article investigates the passive intermodulation (PIM) distortion induced by the asymmetric electrical contact. Based on the analytical model, it is found that the increased current path is the cause of the additional impedance, resulting… read more here.

Keywords: passive intermodulation; distortion; electrical contact; asymmetric electrical ... See more keywords

Improved Design of Flange Mount Coaxial Connector With Low Passive Intermodulation Distortion

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recommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2022.3150893

Abstract: Imperfect electrical connections cause multiple problems in radio-frequency (RF) measurements, with passive intermodulation (PIM) being the most common one. This article proposes a new design approach to reduce the PIM distortion caused by the imperfect… read more here.

Keywords: coaxial connector; mount coaxial; flange; flange mount ... See more keywords

Nonlinear Characterization for Microstrip Circuits With Low Passive Intermodulation

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recommendations! Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2017.2758726

Abstract: Products of passive intermodulation (PIM) generated by weak nonlinearities of passive circuits subjected to relatively high transmit power of multicarrier signals may cause strong interference in emerging broadband and multiradio communication systems. This paper presents… read more here.

Keywords: nonlinear characterization; characterization; passive intermodulation; microstrip circuits ... See more keywords
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Modeling of Passive Intermodulation With Electrical Contacts in Coaxial Connectors

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recommendations! Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2018.2838147

Abstract: Coaxial connectors are one of the main contributors to passive intermodulation (PIM) in radio frequency systems. Such systems exhibit nonlinear characteristics, especially as the transmission power is increased. In this paper, microscopic surface analysis and… read more here.

Keywords: intermodulation electrical; passive intermodulation; modeling passive; power ... See more keywords

Passive Intermodulation in Simultaneous Transmit–Receive Systems: Modeling and Digital Cancellation Methods

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recommendations! Published in 2020 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2020.2996206

Abstract: This article presents novel solutions for suppressing passive intermodulation (PIM) distortion in frequency-division duplexing (FDD)-based radio transceivers, stemming from nonlinear radio frequency (RF) components and simultaneous transmission and reception, with special emphasis on modern carrier… read more here.

Keywords: passive intermodulation; distortion; digital cancellation; transmit ... See more keywords

External Passive Intermodulation Suppression by Near-Field Downlink Beamforming

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recommendations! Published in 2024 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2023.3318681

Abstract: Frequency-division duplex (FDD) systems face the interference of passive intermodulation (PIM) caused by nonlinear distortion of transmitted signals. This type of self-interference problem is more serious in FDD multiple-input multiple-output (MIMO) systems. Because large-scale antenna… read more here.

Keywords: field; downlink beamforming; passive intermodulation; field downlink ... See more keywords