Design of broadband circularly polarized horn antenna using an L-shaped probe

Design of a Circular Polarized Horn Antenna with an Anisotropic Metamaterial Slab

“…A horn antenna can radiates circular polarized wave when using an L-shaped feed probe [1,2] or using both polarization twisting structure and phase delay structure [3]. However, producing this kind of circular polarized horn antenna may not be convenient.…”

A Circularly Polarized Conical Horn with an Inserted Metallic Cone-Sphere [Antenna Designer's Notebook]

“…While the horn antenna is basically linearly polarized, it can be turned into a circularly polarized antenna by using a suit able polarizer [4][5][6][7]. The circularly polarized (CP) conical horn is preferred in polarization-diversity and satellite communica tion systems, and as such, has received substantial attention 146 [7][8][9][10]. While the polarizer is primarily responsible for wave polarization, the overall performance of the circularly polarized horn can be improved by a number of conventional techniques.…”

“…Recently, a simple and low-cost circularly polarized horn [7] was proposed by using an L-shaped probe as the circular-wave polarizer. In [IS], the approach of inserting a metallic cone-sphere into this circularly polarized horn was shown to substantially improve its overall performance, while at the same time nearly retaining the original cost and weight.…”

Low-Cost and High-Gain SIW Circularly Polarized Circular-Horn-Loaded Antenna for Broadband Millimeter-Wave Applications

“…The circular polarization also can be obtained by truncating the horn properly [18]. A wideband CP circular horn antenna fed by an L-probe was proposed in [19]. It is a good method to achieve circular polarization owing to the simple structure and low cost.…”