Title :
Control of RCS of cylindrical microstrip antenna array
Author :
Semenikhin, Andrey I. ; Semenikhina, Diana V. ; Yukhanov, Yury V.
Author_Institution :
Southern Fed. Univ., Taganrog, Russia
Abstract :
Models of the cylindrical microstrip phased antenna arrays (MPAA) of rectangular radiators on the thin suspended anisotropic substrate are examined. Radiation and scattering characteristics of MPAA in the X-band are studied numerically in HFSS. Possibilities of a controlling of the scattering characteristics of "MPAA-cylinder" system by means of switching the states of its passive reciprocal feed network (FN) are shown. Methods of phase control of the total radar cross section (RCS) by means of switching of phase states of FN of completely mismatched MPAA or by means of the phase shifter in general feedline are considered. The greatest angular sector (±120°) RCS changes (3-25 dB) is observed when switching phase states of FN of completely matched MPAA when its processor realizes space-time addressing of the MPAA elements as in a scan mode. Use of one shifter in a load of the general feedline of MPAA controls RCS in less wide azimuthal angular sectors.
Keywords :
antenna feeds; antenna phased arrays; microstrip antenna arrays; microwave antenna arrays; phase control; phase shifters; radar cross-sections; HFSS; MPAA-cylinder system; RCS control; X-band; cylindrical microstrip phased antenna arrays; general feedline; greatest angular sector; passive reciprocal feed network; phase control; phase shifter; radar cross section; radiation characteristics; rectangular radiators; scattering characteristics; space-time addressing; thin suspended anisotropic substrate; Arrays; Feeds; Microstrip; Microstrip antenna arrays; Microstrip antennas; Scattering; Switches; Cylindrical Antenna Array; Microstrip Antenna; Radar Cross Section; Scattering Control; Scattering Diagram;
Conference_Titel :
ELMAR (ELMAR), 2014 56th International Symposium
Conference_Location :
Zadar
DOI :
10.1109/ELMAR.2014.6923357
