Improving the Cross-Polar Performance of an Offset Parabolic Reflector Antenna Using a Rectangular Matched Feed

A Novel Matched Feed Structure for Achieving Wide Cross-polar Bandwidth for an Offset Parabolic Reflector Antenna System

“…Such kind of feeds and their design techniques have been dealt with extensively in literature [4], [5]. The estimation and calculation of required multi-mode coefficients and relative phases for such feed aperture to achieve low cross-polarized pattern of offset reflector is generally not difficult due to the availability of analytical solution of Helmholtz equation.…”

Cross-Polarization Cancellation in an Offset Parabolic Reflector Antenna Using a Corrugated Matched Feed

“…Let be the normalized hybrid factor and be referred as and for the and modes, respectively. In (5)- (8), and are the transverse wavenumbers of and modes, respectively. Also, is the radius of the horn, is the radial coordinate, is the free-space wavenumber, and is the free-space wave admittance.…”

“…Rudge and Adatia [5]- [7] have used the concept of matched feed in a smooth-walled cylindrical structure. Recently, the authors [8] have applied the concept to a rectangular structure. Prasad and Shafai [9], Bahadori and Rahmat-Samii [10], Shee and Smith [11], and Sharma et al [12] have also obtained very encouraging results with a trimode conical matched feed.…”

Improving the Performance of Profiled Conical Horn Using Polynomial Interpolation and Targeting the Region of Interest

“…In last decades, researchers have put significant efforts and proposed variety of horn geometries for many practical applications [3]. A few important examples are Potter horn [4], matched-feed horn [5,6], corrugated horn [7], ridged horn [8], hybrid corrugated horn [9,10], dielectric horn [11,12], metamaterial based horn [13], Gaussian profiled horn [14], spline profiled horn [15], etc. All such horn configurations have their merits and demerits in terms of performance, fabrication complexity, cost, etc.…”