The influence of electromagnetic environment on operation of active array antennas: analysis and simulation techniques

Loyka, Sergey

doi:10.1109/74.815316

Cited by 27 publications

(24 citation statements)

References 68 publications

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“…Taking into account that the side frequencies levels are, as a rule, smaller than that of the carrier and for the sake of simplicity, we shall consider further the beat between the carrier and the interference (beat between the side frequencies and the interference can be considered in a similar way). Then the signal bandwidth is equal to the beat frequency 1fin = f beat = fint 0 fc (11) where f beat is the beat frequency. If condition (8) is true, then the output signal repeats the input signal amplitude and the technique works quite well.…”

Section: Am-detector Simulation At the Large Signal Modementioning

confidence: 99%

Nonlinear EMI simulation of an AM detector at the system level

Loyka¹

2000

IEEE Trans. Electromagn. Compat.

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Abstract-A nonlinear detector simulation technique that can be used together with the discrete technique for a rapid radio receiver electromagnetic compatibility and electromagnetic interference (EMC/EMI) simulation up to the baseband signal processing path at the system level is proposed. The technique presented allows one to simulate an amplitude modulation (AM) detector in the large signal mode as well as in the small signal mode by taking into account the nonlinearity of the detector transfer characteristic. The technique was validated by making comparisons with measurements and PSPICE simulation data.

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Section: Am-detector Simulation At the Large Signal Modementioning

confidence: 99%

Nonlinear EMI simulation of an AM detector at the system level

Loyka¹

2000

IEEE Trans. Electromagn. Compat.

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“…Besides, the circuit-level simulation would require too much characterization data. Thus, behavioral-level techniques (also known as "black-box" techniques) should be used for such a problem [3,13,14]. We further discuss three such techniques.…”

Section: Emi In Analog and Digital Wireless Systemsmentioning

confidence: 99%

“…The basis of the discrete technique is a representation of the system block diagram as linear filters (matching networks) and memoryless nonlinear elements (active elements) connected in series (or in parallel, or both) [3,13,16,17]. Input and output filters model input and output matching networks correspondingly.…”

Section: Discrete Techniquementioning

confidence: 99%

“…These stages can produce a considerable amount of RF EMI, especially in heavily-overcrowded spectrum [3,4]. Secondly, the large-scale introduction of broadband wireless systems [5,6], which is foreseen for near future, will make these problems even more important and more difficult to solve since any bandwidth expansion increases the risk of getting interference problems.…”

Section: Introductionmentioning

confidence: 99%

“…This architecture uses multiple transmit and receive branches to launch and detect independent bit streams over the same wireless channel. Thus, its Tx and Rx branches operate at the same frequency, which can be a source of many EMC/EMI problems, especially in a complex electromagnetic environment [3]. The complexity of EMC/EMI analysis in a future wireless network is very large due to the large number of systems in the network and due to the complexity of systems (many Tx/Rx branches, complex structure of every branch) and of the electromagnetic environment.…”

Section: Introductionmentioning

confidence: 99%

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EMC/EMI analysis in wireless communication networks

Loyka

2001 IEEE EMC International Symposium. Symposium Record. International Symposium on Electromagnetic Compatibility (Cat. No.01CH

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New behavioral-level simulation technique for RF/microwave applications. Part I: Basic concepts

Loyka

Mosig

2000

Int J RF and Microwave Comp Aid Eng

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The quadrature modeling technique is nowadays widely used for the nonlinear simulation of RF/microwave communication circuits and systems at the behavioral (system) level. It allows one to simulate the circuit/system performance under real‐world conditions and signals (using several thousand sample frequencies) and to predict such parameters as adjacent channel power ratio, spectral regrowth, and error vector magnitude in a computationally efficient way. But it is a narrowband technique and, consequently, cannot predict harmonics of the carrier frequency and even‐order nonlinear products, to account for the circuit/system frequency response and the bias decoupling network effect. Here, we propose a new behavioral‐level simulation technique (instantaneous quadrature technique) that overcomes these drawbacks, and demonstrate its validity through measurements and harmonic balance simulation. The transformation of envelope transfer characteristics into instantaneous ones is also discussed in detail. © 2000 John Wiley & Sons, Inc. Int J RF and Microwave CAE 10: 221–237, 2000.

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The influence of electromagnetic environment on operation of active array antennas: analysis and simulation techniques

Cited by 27 publications

References 68 publications

Nonlinear EMI simulation of an AM detector at the system level

Nonlinear EMI simulation of an AM detector at the system level

EMC/EMI analysis in wireless communication networks

New behavioral-level simulation technique for RF/microwave applications. Part I: Basic concepts

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