Simulated corrugated feed horn antenna

Radiation Characteristics of a Square Pyramidal Horn Antenna with Tapered DielectricE-Plane Boundary Walls Loaded With Periodic Conducting Strips

“…Alternate feed horns with conical and square pyramidal profile with conducting strip loaded dielectric walls that simulates all the radiation characteristics of identical metallic corrugated horns are reported. In simulated feed horn antennas reported [5,6,7,10] the Eplane boundary walls were of uniform thickness after the tapered throat profile region used for impedance matching. Moreover, in these horns, at the throat region, immediately after the waveguide section only 1 cm portion of the throat is metallised.In the presentpaper,a square pyramidal horn with 3 cm metallisation at the throat region and tapered dielectric E-plane boundary walls that are loaded with periodic structure of conducting strips on inner sides is investigated.…”

Analysis of E- Plane Radiation Patterns of a Simulated Scalar Feed Horn Antenna

“…The E-plane walls of the Simulated Scalar Feed (SSF) horn antenna are fabricated with dielectric substrate of appropriate thickness whose inner surface is periodically loaded with thin conducting strips which is called simulated corrugated surface [1,2,3,4,5].It is well known that the E-plane aperture electric field distribution of a metallic corrugated antenna whose corrugation depth is judiciously selected for the balanced hybrid mode of operation is cosine in nature. The SSF horn antenna is also exhibiting a cosine nature for its Eplane aperture electric field distribution [3,4]. Hence, the present theoretical analysis of the E-plane radiation characteristics of the SSF horn antenna is based on the theory of metallic corrugated horn antennas [6].…”

A Small Square Aperture Simulated Corrugated Scalar Feed Horn with Beam Symmetry

“…A large amount of metal is also wasted in this process. Alternately, conical horns with conducting strips loaded on dielectric surface of uniform thickness as horn wall are also reported [1,2].Square pyramidal horns with metallic strip loaded dielectric plates as E-plane walls are also reported [3,4,5].However, the desired beam symmetry in the two principal planes are not obtained in the case of these feed horns. The large aperture of these horns may be the reason of unsymmetrical beam patterns in the two principal planes.…”