P.A. Tushnov1, V.S. Berdyev2, S.A. Topchiev3

1−3 PSC «Radiofizika» (Moscow, Russia)

Problem statement. Active phased array antennas (APAA) have a large number (from several hundred to several thousand) of receiving and transmitting modules (RTM), which are the main consumers of energy and at the same time the main sources of heat generation. Due to the spread of parameters of high-power output stages of the RTM, the output power of the microwave channels does not have an exact value, but lies in a fairly wide range from the minimum to the maximum value of the declared power.

Thus, only a small percentage of the APAA microwave channels have a power close to the maximum, while when designing APAA, the maximum power of power sources and the power of heat removal systems is calculated based on the maximum possible value of the power of the RTM microwave channel, which is not optimal.

Goal. To propose a method for optimizing the energy characteristics of APAA by applying a method for controlling the output power (COP) of the RTM. To obtain an analytical expression of the dependence of the efficiency coefficient of the COP method application due to the stabilization of the output power of the microwave channels of the RTM.

Results. A method for optimizing the energy characteristics of APAA is proposed. An analytical expression of the dependence of the efficiency coefficient of the COP method is obtained. A method for selecting the bit depth of the control potentiometer is proposed. Practical significance. The proposed design method allows us to design an APAA with the maximum achievable average radiated power.

Tushnov P.A., Berdyev V.S., Topchiev S.A. Technology for controlling the output power of transceiver modules as a means of optimizing the energy characteristics of active phased antenna arrays. Radiotekhnika. 2021. V. 85. № 10. P. 30−41. DOI: https://doi.org/10.18127/j00338486-202110-04 (In Russian)

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2. Tushnov P.A., Berdyev V.S., Levitan B.A. Issledovanie vlijanija konstruktivnyh faktorov na jelektricheskie parametry integral'nyh funkcional'nyh ustrojstv priemoperedajushhih modulej AFAR. Radiotehnika. 2020. № 4. S. 47−60. DOI: 10.18127/j00338486-202004(7)-06 (In Russian).
3. Tushnov P.A., Berdyev V.S., Mitrofanov M.M. Tehnologicheskie aspekty modul'nogo principa postroenija SVCh-traktov priemoperedajushhih modulej AFAR. Radiotehnika. 2017. № 4. S. 33−43 (In Russian).
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6. Patent № 2650 049 (RF). Sposob usilenija moshhnosti radiochastotnogo signala. Tushnov P.A., Berdyev V.S. (In Russian).
7. Patent № 2619192 (RF). Sposob upravlenija usilitelem moshhnosti radiochastotnogo signala i priemoperedajushhij SVCh-modul' aktivnoj fazirovannoj antennoj reshetki. Berdyev V.S., Tushnov P.A. (In Russian).
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11. Patent № 2566601 (RF). Priemoperedajushhij SVCh-modul'. Berdyev V.S., Dominjuk Ja.V., Levitan B.A., Mitrofanov M.M., Radchenko V.P., Tokmakov D.I., Topchiev S.A., Tushnov P.A. (In Russian).
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14. Tushnov P.A., Berdyev V.S., Gevorgjan O.A. Issledovanie osobennostej primenenija v SVCh-ustrojstvah moshhnyh tranzistorov na osnove GaN-geterostruktur. Radiotehnika. 2017. № 4. S. 33−43 (In Russian).
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17. Berdyev V.S., Levitan B.A., Tushnov P.A., Shishlov A.V. Povyshenie jeffektivnosti AFAR za schet upravlenija vyhodnoj moshhnost'ju kanalov priemoperedajushhih modulej. Radiotehnika. 2016. № 10. S. 86−97 (In Russian).
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