M.P. Apin - Ph. D. (Econ.), First Deputy General Director, Main Engineer, JSC «SPE «Almaz» (Saratov) A.G. Balabolin - Head of Department, JSC «SPE «Almaz» (Saratov) A.L. Khvalin - Dr. Sc. (Eng.), Professor, Saratov State University named after N.G. Chernyshevsky L.S. Sotov - Dr. Sc. (Eng.), Professor, Saratov State University named after N.G. Chernyshevsky

The problem of obtaining large values of microwave power over a wide frequency band is relevant for a number of radio systems. Power amplifiers determine the most important tactical and technical parameters of radio systems, such as radiated and consumed power, operating frequency range, size and weight, reliability and cost. The article presents results of numerical investigation of parameters of high-power broadband amplifiers based on a scheme of multi-channel summation of powers of domestic serially produced broadband transistors over the frequency range 1−2 GHz. The characteristic features of the amplifier module design with an output power of 50 W in continuous operation are considered. Power transmission coefficient of the amplifier is 20 dB. A large number of summated channels, thermal problems and difficulties of tuning causes the complexity of building amplifiers in a single package. One of the ways of solving the problem is to use identical amplifiers with the following output power summation by use of summing circuits with low losses. This article passes the experience of the authors on the creation high-power broadband amplifiers of continuous mode in the range of 1−2 GHz on domestic element base. As the result of this work, the design of high-power broadband amplifier and its main units - power dividers/combiners for 2, 4, and 8 channels in microstrip implementation, as well as a basic two-stage amplifier module were created. The computer project of high-power broadband amplifier is presented. Its optimal performances over the operating frequency range from 2 to 4 GHz are obtained.

 

1. KHvalin A.L. Analiz i sintez integralnykh magnitoupravljaemykh radiotekhnicheskikh ustrojjstv na ferritovykh rezonatorakh: avtoref. diss. na soiskanie uch. stepeni dokt. tekhn. nauk. 05.12.04. Povolzhskaja gos. akademija telekommunikacijj i informatiki. Samara. 2014. 32 s.
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5. KHvalin A.L., Ovchinnikov S.V., Sotov L.S., Samoldanov V.N. Pervichnyjj preobrazovatel na osnove ZHIG-generatora dlja izmerenija silnykh magnitnykh polejj // Datchiki i sistemy. 2009. № 10. S. 57−58.
6. KHvalin A.L., Sotov L.S., Ovchinnikov S.V., Kobjakin V.P. EHksperimentalnye issledovanija gibridnogo integralnogo magnitoupravljaemogo generatora // Pribory i sistemy. Upravlenie, kontrol, diagnostika. 2009. № 11. S. 42−44.
7. KHvalin A.L., Ignatev A.A., Ljashenko A.V., Vasilev A.V., Samoldanov V.N. EHlektrodinamicheskoe modelirovanie SVCH-usilitelejj s geteromagnitnym upravleniem // Geteromagnitnaja mikroehlektronika. Saratov: Izd-vo SGU. 2004. № 1: Mnogofunkcionalnye kompleksirovannye ustrojjstva i sistemy SVCH- i KVCH-diapazonov. S. 99−105.
8. Sotov L.S., KHvalin A.L. Sredstva razrabotki i issledovanija arkhitekturnykh modelejj v SAPR SYSTEM STUDIO. CHast 1. Ispolzovanie instrumentov SYSTEM STUDIO pri modelirovanii matrichnogo generatora perestanovok // Geteromagnitnaja mikroehlektronika. 2008. № 5. S. 121−145.
9. Samoldanov V.N., Ignatev A.A., Ljashenko A.V., Solopov A.A., KHvalin A.L., Marinin A.V., Kovalenko M.L. Kompjuternoe modelirovanie ferritovykh rezonatorov vo vnutrennikh cepjakh bipoljarnogo tranzistora v usilitelnom rezhime raboty // Geteromagnitnaja mikroehlektronika. Saratov: Izd-vo SGU. 2004. № 1: Mnogofunkcionalnye kompleksirovannye ustrojjstva i sistemy SVCH- i KVCH-diapazonov. S. 110−118.
10. KHvalin A.L. Dispersionnye sootnoshenija dlja sloistykh ferritosoderzhashhikh struktur v prjamougolnom volnovode // Vestnik Tikhookeanskogo gosudarstvennogo universiteta. 2010. № 1. S. 73−80.
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13. KHvalin A.L. Ispolzovanie svojjstv polosovykh domennykh struktur v plenochnykh ZHIG-rezonatorakh dlja sozdanija dvukhkomponentnogo magnitometra slabykh magnitnykh polejj // Voprosy ehlektromekhaniki. Trudy VNIIEHM. 2014. T. 138. № 1. S. 43−48.
14. KHvalin A.L. Vektornyjj magnitometr slabykh magnitnykh polejj // Izmeritelnaja tekhnika. 2014. № 10. S. 45−48.
15. Khvalin A.L. A vector magnetometer for measuring weak fields // Measurement Techniques. 2015. T. 57. № 10. S. 1184−1188.
16. KHvalin A.L. Trekhkomponentnyjj datchik magnitnogo polja na sfericheskom ZHIG rezonatore // Vestnik Tikhookeanskogo gosudarstvennogo universiteta. 2015. № 3. S. 33−40.
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