Modeling of a resonator in a rectangular waveguide for transmitting electromagnetic energy

Islamov, I. J.; Huseynli, I. G.; Abdullayev, R. Sh.

doi:10.1063/5.0106469

Cited by 1 publication

(2 citation statements)

References 15 publications

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“…At present, the most widely used method is to eliminate the normal effect, based on the displacement of even and odd groups of periodic inhomogeneities of the power divider relative to each other by an odd integer number of quarters of the wavelength in the delay line [25]. However, the results of experimental tests of the characteristics of antenna arrays with frequency scanning, in which this method is implemented [26], show that when wide-angle scanning is carried out in a relative band of more than a few percent, there is a sharp deterioration in matching in the lower and upper frequencies of the operating range.…”

Section: Simulation Of An Antenna Device With Frequency Scanningmentioning

confidence: 99%

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General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

Islamov

Humbataliyev

2022

AEM

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The work carried out the calculation and synthesis of antenna arrays used in radio-electronic complexes on unmanned aerial vehicles. The analytical model is designed to find asymptotic estimates of the polarization components of the electric field of the grating in the far zone of the carrier surface; the results obtained with its use are the initial data for constructing a technique for the numerical solution of a boundary value problem for a grating on a carrier surface in the CST MWS electrodynamic simulation environment. The synthesis of gratings with the maximum achievable coefficient of directional action is carried out with the control of radiation patterns at a given set of angles. A two-mirror antenna system has been calculated. It is shown that with an increase in the number of re-reflections taken into account, the convergence of the result for the calculated characteristics of the antenna is observed. To test the proposed method, the same antenna was calculated using the integral equation method. The comparison showed a high degree of agreement between the results obtained by two different methods. The results of the simulation based on a software algorithm designed to quantify the input matching at the input of a multichannel frequency-scanning antenna array power divider are presented. It was found that when performing wide-angle scanning in a relative frequency band of more than a few percent, the disadvantage of the known method for eliminating the normal effect is a sharp deterioration in matching in the lower and upper frequencies of the operating range. A new method is proposed based on an automated iterative process of optimizing the divider geometry, which makes it possible to obtain an acceptable match over the entire operating frequency band. The feasibility of switching from a serial power divider construction scheme to a series-parallel scheme is analyzed for wide-angle scanning in a relative frequency band of about 5%.

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Section: Simulation Of An Antenna Device With Frequency Scanningmentioning

confidence: 99%

“…Normalized power distribution formed at the outputs of the power divider: (25) Power propagating in the nth period of the delay line: (26) where n = 2, 3,..., N; power propagating in the 1st delay line period after the 1st coupler; power loss in one period of the delay line; αloss per unit length in delay lines in dB/m.…”

Section: Description Of the Algorithmmentioning

confidence: 99%

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

Islamov

Humbataliyev

2022

AEM

View full text Add to dashboard Cite

show abstract

Modeling of a resonator in a rectangular waveguide for transmitting electromagnetic energy

Cited by 1 publication

References 15 publications

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

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