Design of High-Directivity Compact-Size Conical Horn Lens Antenna

3-D Inkjet-Printed Helical Antenna with Integrated Lens

“…The efficiency of our design is 65 % which is on the higher side as compared to inkjet printed antennas and comparable to traditional non-3D printed lens antennas whose efficiency can vary from about 50%-80% [17,18] .…”

Creating a Gain Enhancement Technique for a Conical Horn Antenna by Adding a Wire Medium Structure at the Aperture

“…This lattice is embedded on both sides of the polyamide ( r  = 3.5) dielectric sheet. Furthermore, the effective relative permittivity of a wire medium structure can berealized in operating frequency 10 GHz by adjusting the wire array spacing and the wire radius according to (1). We found that the most appropriate dimensions for the wire medium structure, which provided the desired performance, were: wire radius (r) = 1.25 mm, wire array spacing (s 1 ) = 3.5 mm, and polyamide thickness (h 1 ) = 3.5 mm.…”

“…The loading wire medium exhibited a high directivity and reduced side lobe level, while the gain of the proposed antenna was lower than that of the conventional horn. Furthermore, a high-directivity compact-size conical horn lens antenna was proposed to create a spherical wave front similar to an EM wave by using a wire medium lens to cover the aperture of the conical horn and obtain a higher gain [12].…”

SIW slot antenna for E-band communications

“…Due to quite stringent requirements the antenna solutions developed include horn arrays [2], lenses [3], and reflector antennas [4]. Those are bulky and can hardly be employed for compact mobile terminals.…”