Two-Frequency Operating Mode of Antenna Arrays With Radiators of Clavin Type and Switching Vibrator and Slot Elements

Abstract

The possibility of application Clavin type radiators in combined two-frequency antenna arrays with diode switching of vibrator and slot elements is validated. The conventional Clavin elements with passive monopoles operating at the main frequency and two active monopoles operating at the alternative frequency are used as the combined array radiator. Radiation fields of combined arrays at both frequencies are analyzed. It is shown that the alternative wavelength should not exceed the main wavelength by more than 25%.

Waveguide Radiation of the Combined Vibrator-Slot Structures

“…Radiators with vibrators located in various waveguide tracts and resonators were studied in [11][12][13][14][15][16][17][18][19][20]. A special place among combined vibrator-slot structures is occupied by Clavin elements, consisting of narrow radiating slot and two identical passive vibrators (monopoles) located on both sides of the slot cut in plane screen [21][22][23][24][25][26][27][28]. The Clavin element is characterized by similar radiation patterns (RPs) in the Eand H-planes.…”

“…The Clavin element is characterized by similar radiation patterns (RPs) in the Eand H-planes. They are used as stand-alone radiators, primary feed antennas, and also as part of multi-element phased arrays [28]. However, in publications on this subject by other authors [11][12][13][14][15][16][21][22][23][24][25], only perfectly conducting vibrators were considered.…”