S. A. Karpukhin1
1 Public Joint Stock Company «Almaz» (Moscow, Russia)

1 SKarpukhin@inbox.ru

This article describes a phased antenna array with an extended operating range, which allows it to detect and track various aerodynamic targets and which can be used in military equipment. The proposed antenna array manufactured by means of printed technology contains four sections, which are attached to each other by means of slot joint and is equipped with holes at the outer corners of each section. The section is a plate made of glass-textolite, which has eight round flat metal radiators located on a dielectric substrate with a conductive metal screen, which is located on the back side of the section. The excitation of round flat metal radiators is performed by means of pins to which coaxial feeders are docked with coaxial connectors.

The assembly process is carried out in three steps using pressure testing: 1) the first antenna section is connected to the second antenna section by means of a slot connection; 2) the third section is connected to the first and second sections in the following manner that the third section stub is connected to the slot of the first section; 3) the fourth section is inserted into the groove on the right side of the antenna by a protrusion and aligned with the groove of the third section by a progressive movement to the left.

Round flat metal radiators are located along the longitudinal axis of the antenna array with the distance between them vertically and horizontally 0,5 – 0,6 wavelength of the center frequency of the operating range and connected to coaxial feeders.

Phased antenna array assembly is a design that provides immobility of antenna sections in the vertical and horizontal planes, provides a tight fit edges of sections to each other without a gap, which reduces the appearance of spurious signal. The antenna design allows you to get rid of protruding elements and this reduces the interference of side and useful signals. The use of round flat shape radiators in the antenna allows its use on moving carriers and increases the vibration resistance of the structure.

The sections are made of glass-textolite by etching cooper foil over the proctective image, and the protrusions and slots are made by milling.

Karpukhin S.A. Expansion of the operating range of a phased antenna array by differentiation of the antenna aperture into sub-bands. Antennas. 2024. № 6. P. 58–68. DOI: https://doi.org/10.18127/j03209601-202406-06 (in Russian)

1. Voskresenskij D.I., Kanashchenkov A.I. Aktivnye fazirovannye antennye reshetki. M.: Radiotekhnika. 2004. (in Russian)
2. Patent № 2296400. Linejnaya antennaya reshetka. Yu.I. Lentsi. Opubl. 27.03.2007 Byul. № 9. (in Russian)
3. Patent № 2486643. Antennaya reshetka. V.A. Voloshin, V.V. Zadorozhnyj, A.Yu. Larin, O.V. Ovodov, D.Yu. Pojmenov, Yu.V. Tyurin. Opubl. 27.06.2013 Byul. № 18. (in Russian)
4. Bakulev P.A. Radiolokatsionnye sistemy. M.: Radiotekhnika. 2015. (in Russian)
5. Patent № 2810947. Fazirovannaya antennaya reshetka chetyrekhsektsionnaya. S.A. Karpukhin. Opubl. 09.01.2024 Byul. № 1. (in Russian)
6. Voskresenskij D.I., Gostyukhin V.L., Maksimov V.M., Ponomarev L.I. Ustrojstva SVCh i antenny. M.: Radiotekhnika. 2006. (in Russian)
7. Voskresenskij D.I. Antenny i ustrojstva SVCh. Proektirovanie fazirovannykh antennykh reshetok. M.: Radio i svyaz'. 1981. (in Russian)
8. Klimov K.N. Elektrodinamicheskoe modelirovanie volnovodnoj priemnoj antenny s rabochej polosoj chastot oktava. Vestnik vozdushno-kosmicheskoj oborony 2021. № 1 (29). S. 61–68. (in Russian)
9. Karpukhin S.A. Analiz vozniknoveniya pobochnykh glavnykh maksimumov v shirokopolosnykh fazirovannykh antennykh reshetkakh i metody ikh ustraneniya. Vestnik vozdushno-kosmicheskoj oborony. 2023. № 2 (38). S. 77–80. (in Russian)
10. Markov G.T., Sazonov D.M. Antenny. M.: Energiya. 1975. (in Russian)
11. Larin A.Yu., Zadorozhnyj V.V., Chikov N.I. Shirokopolosnyj pechatnyj izluchatel' dlya antennoj reshetki s shirokougol'nym skanirovaniem. Antenny. 2021. № 6. S. 5–12. (in Russian)