L.I. Ponomarev1, E.V. Manaenkov2, O.V. Terekhin3, A.A. Vasin4, A.Yu. Ganitsev5, A.Yu. Shcherbachev6

1,3–6 Moscow Aviation Institute (National Research University) (Moscow, Russia)

2 JSC «Central Design Bureau of Apparatus Building» (Tula, Russia)

At the present time phased antenna arrays are being actively developed, which have the ability to operate in two or more frequency bands with a wide scanning sector. The combination of radiators of different frequency ranges in a single aperture leads to interaction between them, which causes distortions in the directivity characteristics, impedance and polarization properties. Covering the desired operating frequencies by expanding the operating frequency band of the radiator is associated with the tasks of dividing the frequency spectrum (multiplexing) and the dependence of the directivity characteristics on the operating frequency. The implementation of wide-angle scanning and the synthesis of radiation patterns require an additional evaluation of the interelement isolation, a numerical assessment of the change in the reflection coefficient from radiators in the scanning mode, and determination of the maximum allowable beam deflection angle. It is also important to reduce the weight and size of the antenna.

The aim of the article is to identify promising designs of radiators of various ranges, ways of feeding them and combining them within a single radiating aperture from the point of view of further simulation of a two-, three- and more-band combined phased antenna array.

An overview of various designs of combined phased antenna arrays used in various radioelectronic systems has been given. The main characteristics of such antennas have been noted and compared to identify the most promising PAA scheme that provides the specified scanning sector and operating frequency band within each range.

The results of the review can be used in the development and modeling of dual-band combined phased arrays.

Ponomarev L.I., Manaenkov E.V., Terekhin O.V., Vasin A.A., Ganitsev A.Yu., Shcherbachev A.Yu. Dual-band shared-aperture phased antenna arrays. Achievements of modern radioelectronics. 2022. V. 76. № 5. P. 5–25. DOI: https://doi.org/10.18127/j20700784-202205-01 [in Russian]

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