Title :
A novel antenna for ultra-wide-band applications
Author :
Lai, Albert K Y ; Sinopoli, Albert L. ; Burnside, Walter D.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
7/1/1992 12:00:00 AM
Abstract :
An ultra-wideband antenna based on a slotline feed structure, a bowtie horn, and a rolled edge termination was developed, analyzed, and measured. Empirical data showed that its beamwidths and bandwidth are dependent on its physical dimensions which are easily controllable by an antenna designer. Measured patterns of models with various radiation properties are shown to substantiate these design rules. A flat plateau-like main beam, low voltage standing-wave ratio (VSWR), the ability to produce both wide (60°) and narrow (30°) half-power beamwidths, low sidelobes and backlobe (40-50 dB down), low cross-polarized levels (20-25 dB down), and independent control of E- and H-plane beamwidths over an ultra-wide bandwidth, say 2-18 GHz, are some of the strong points of this antenna type
Keywords :
antenna feeders; antenna radiation patterns; microwave antennas; waveguide antennas; 16 GHz; 2 to 18 GHz; SHF; VSWR; beamwidths; bowtie horn; flat plateau-like main beam; low backlobe; low cross-polarized levels; low sidelobes; low voltage standing-wave ratio; radiation patterns; rolled edge termination; slotline feed structure; ultra-wide bandwidth; ultra-wideband antenna; Antenna feeds; Antenna measurements; Bandwidth; Horn antennas; Low voltage; Slot antennas; Slotline; Ultra wideband antennas; Ultra wideband technology; Voltage control;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
