Title :
Radiation from a ferrite-filled rectangular waveguide with multiple slits
Author :
Hwang, Keum C. ; Eom, Hyo J.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
fDate :
5/1/2005 12:00:00 AM
Abstract :
Radiation from a ferrite-filled waveguide with multiple thick slits is investigated. The Fourier transform and mode matching are utilized to obtain a rigorous solution. The effect of the ferrite linewidth is included to account for the magnetic loss of ferrite. The maximum beam steering ratio 4.33°/100 oe is achieved with the magnetic bias field ranging from 1000 to 1400 oe. The ferrite-filled rectangular waveguide with nine slits is fabricated and its radiation patterns are measured at X-band. Our computational results agree with measurement data.
Keywords :
Fourier transforms; antenna radiation patterns; beam steering; ferrite-loaded waveguides; leaky wave antennas; millimetre wave antennas; mode matching; rectangular waveguides; waveguide antennas; Fourier transform; Z-band; ferrite linewidth; ferrite-filled rectangular waveguide; magnetic bias field; magnetic loss; maximum beam steering ratio; mode matching; multiple slits; radiation pattern; Antenna measurements; Beam steering; Ferrites; Fourier transforms; Leaky wave antennas; Magnetic field measurement; Magnetic fields; Rectangular waveguides; Scattering; Slabs; Ferrite-filled rectangular waveguide; Fourier transform; mode matching; multiple slits;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2005.847651
