2D SINGLE-FOCUS FREQUENCY SCANNING ARRAYS FOCUSED IN THE FRESNEL ZONE

 

S. E. Bankov

Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Mokhovaya11-7, Moscow125009, Russia

 

The paper is received on October 20, 2017

 

Abstract. 2D single-focus arrays of elementary radiators with frequency scanning focused in the Fresnel zone are considered. A problem of the array synthesis is solved for the arrays of different types. The proposed solution determines coordinates of the elementary radiators located in the planar aperture. An approximate analysis of the electromagnetic field radiated by the array of the radiators assuming specified currents is presented. The currents are formed by a system of parallel transmission lines loaded with the elementary radiators. Traces of focal spots movement in two dominant scanning planes - in parallel and perpendicular to the transmission lines axes - are investigated. Scanning curves determined for the field strength maximum and for the radiation efficiency maximum are obtained. 

Key words: focused array, frequency scanning, Fresnel zone, scanning curve, radiation efficiency.

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For citation:

S. E. Bankov. 2D single–focus frequency scanning arrays focused in the Fesnel zone. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2017, No. 10. Available at http://jre.cplire.ru/jre/oct17/13/text.pdf.