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Compact and low-cost antenna arrays with beam-steering or beam-switching are needed for emerging millimeter-wave communication systems such as 5G and WLAN at the 60 GHz frequency band. The design, manufacturing and measurement results for a 60 GHz beam-switching Rotman lens integrated with a 4×8 patch antenna array are presented. Active versions with integrated amplifiers are also developed. The presented...
Flexible antennas in radar applications enable the user to go around obstacles or detect targets at hidden places. In this paper, two elliptical lenses of different size made of high density polyethylene and stacked on a flexible dielectric waveguide are designed and measured from 140 GHz to 180 GHz. The feeding dielectric waveguide and the mode transition from metallic waveguide to dielectric waveguide...
In this paper different possibilities for an in-antenna power-combining approach are investigated. The radiation is based on the principle of an integrated lens antenna (ILA), where the primary radiator consists of a slot antenna with two or more excitation elements. The output power of parallel amplifiers can be directly combined in the primary radiator itself without any additional combiner network...
This paper describes the design, fabrication and characterization of a 42 GHz compact lens antenna integrated in a backhaul terminal radome. The proposed lens concept relies on the use of hybrid design that mixes a single refractive bulk zone and dielectric structured zones. This allows overcoming usual Fresnel lens efficiency limitations occurring in compact configurations. The antenna is composed...
In this study to show that the paraffin-based lens can handle high frequencies for metamaterial characterization, two dielectric lenses are fabricated using a molding process for the frequency range from 10 to 18 GHz. The fabricated lenses guarantee low cost and ease of implementation compared to the other machining and material methods. To verify the proposed lens performance, two similar paraffin...
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