"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 2, 2019

contents of issue      DOI  10.30898/1684-1719.2019.2.7     full text in Russian (pdf)  

Radiation characteristics of a linear slotted-waveguide array with a wide frequency scan


V. I. Kalinichev, V. A. Kaloshin

Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Mokhovaya,  11-7, Moscow 125009, Russia


The paper is received on January 30, 2019


Abstract. A linear slotted waveguide antenna array with a wide frequency scanning sector and its electromagnetic model were proposed in [1]. The antenna array is made of a rectangular metal waveguide filled with a dielectric and loaded by periodically located pairs of transverse slots in a wide wall. A wide scanning sector is achieved due to the continuous frequency transition from the fundamental (zero) harmonic radiation mode to the -1 harmonic radiation mode of the array spatial spectrum. As a result of the numerical simulations the possibility of beam scanning in the 180-deg angular sector was shown and the frequency dependences of the normalized radiation patterns, directivity and the scattering matrix parameters were computed. In this paper, we study such radiation characteristics as the array gain and the aperture efficiency. It is shown that due to the non-uniformity of the leakage constant in the operating frequency band and the high reflection level in the frequency transition region from one radiation mode to the other the antenna array is characterized by strong non-uniformity of the gain ​​and the aperture efficiency versus frequency in most of the operating range.

Keywords: slotted waveguide antenna array, frequency scanning, reflection coefficient, gain, aperture efficiency.


1. Kaloshin V. A., Kalinichev V. I. A linear slotted waveguide antenna array with 180-degree frequency scanning sector. Journal of Communications Technology and Electronics. 2019. Vol .64. No 6. (to be published)

2. Bankov S. Antennie reshetki s posledovatelnim pitaniem. Moscow, Fizmatlit Publ., 2013.  (In Russian)

3. Kalinichev V. I., Babaskin A. A. A method of calculating the leaky-wave propagation constant in slotted waveguides. Journal of Radio Electronics, 2015, No. 7. http://jre.cplire.ru/jre/jul15/2/text.pdf  (In Russian)

4. Xu F., Patrovsky A., Wu K. Fast Simulation of Periodic Guided-Wave Structures Based on Commercial Software. Microwave Opt. Technol. Lett., 2007, Vol. 49, No. 9, pp. 2180-2182.


For citation:

V. I. Kalinichev, V. A. Kaloshin. Radiation characteristics of a linear slotted-waveguide array with a wide frequency scan. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 2. Available at http://jre.cplire.ru/jre/feb19/7/text.pdf

DOI  10.30898/1684-1719.2019.2.7