Title :
Millimeter-Wave Dual Polarized L-Shaped Horn Antenna for Wide-Angle Phased Arrays
Author :
Schulwitz, Lora ; Mortazawi, Amir
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI
Abstract :
A new broadband dual polarized L-shaped horn antenna and associated waveguide feed structure is presented. The antenna is well suited for millimeter-wave polarimetric phased array systems requiring wide-angle scanning and ease of integration with planar circuits. A stereolithographic fabrication process is employed to obtain the complex angles and intricate features that are essential for the antenna and feed design. Dielectric material is used to fill the horn antenna and waveguide feed, which allows for the desired radiation characteristics as well as low loss transition to the microstrip circuitry. Broadband attributes are demonstrated with measured return losses of better than -10 dB from 34 to 40 GHz. The measured gain is 5.3 dB at 35 GHz, along with 19 dB cross-polarization discrimination
Keywords :
antenna feeds; antenna phased arrays; antenna radiation patterns; broadband antennas; dielectric-loaded antennas; horn antennas; microstrip antenna arrays; millimetre wave antenna arrays; planar antenna arrays; scanning antennas; 34 to 40 GHz; broadband dual polarized L-shaped horn antenna; dielectric material; microstrip circuit; millimeter-wave antenna; planar circuit; polarimetric phased array system; radiation characteristics; stereolithographic fabrication process; waveguide feed structure; wide-angle scanning; Antenna arrays; Antenna feeds; Antenna measurements; Broadband antennas; Dielectric measurements; Horn antennas; Microstrip antennas; Millimeter wave circuits; Phased arrays; Polarization; Antenna array feeds; dielectric horn antennas; dual polarization; phased arrays; stereolithography;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.880761
