Теорія та техніка антен (ICATT 2009). – 2009 р.

Permanent URI for this collectionhttps://ena.lpnu.ua/handle/ntb/3740

Матеріали 7-ої Міжнародної конференції

У книзі зібрано матеріали конференції, присвяченої проблемам у галузі розробки і впровадження антен.

Теорія та техніка антен = Antenna theory and techniques : матеріали 7-ої Міжнародної конференції, 9–12 червня 2009 року, Львів, Україна. – Львів : Видавництво Національного університету "Львівська політехніка", 2009. – 400 с. : іл.

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Subject: search.filters.subject.antenna array

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    Control of directional diagram of the inphase array for radiators of supershort radio impulses
    (Видавництво Національного університету "Львівська політехніка", 2009) Shostko, I. S.
    The method simultaneous excitation is considered of microwave oscillations in linear arrays of spark radiators. It is based on the voltage multiplication circuit’s usage. The influence is studied of the growing voltage along of antenna array and the switching time of dischargers in the array on performances of the directional diagram. The method of control directional diagram array is based on short-duration pulse shape properties. The beam direction depends on pulse radiators excitation parameters. The parameters experimental probing results are given for linear antenna array of spark radiators.
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    Numerical analysis of patch antenna as antenna array element
    (Видавництво Національного університету "Львівська політехніка", 2009) Kizimenko, V.; Bobkov, Y.
    The patch antennas as antenna array element can be modeling by finite element method (programs Microwave Office, Ansoft HFSS and other). But this method need to use fast computer with memory large size. In this work the authors make an attempt to use thin wire integral equation method for patch antenna analysis. The results of modeling by proposed method are compared with the same of modeling by finite elements method and experimental results.
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    The usage features of multifrequency space-time signals in super-fast scanning radar with active phased antenna array
    (Видавництво Національного університету "Львівська політехніка", 2009) Gorshkov, V. K.; Leonov, I. N.; Sedyshev, Y. N.; Shevchenko, A. F.; Tyutyunnik, V. A.
    The usage features of multifrequency (MF) space-time signals (STS) which are formed by transmitter active phased antenna array (APAA) radar with angular super fast scanning (STS) in with paper are examined. The STS structural, correlation features and its interrelation with parameters of MF modulation and APAA characteristics are determined. It is shown that the usage of complex partial signal in each radiation element in association with suitable partial waveform can realize a synthesis (reconstruction) of transmitter APAA directional characteristic in receiver by returned signals. Reliability of the results is confirmed by simulation modeling on different partial signals.