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This paper presents a broadband, dual-polarized base station antenna element by reasonably designing two orthogonal symmetrical dipole, four loading cylinders, balun, feed patches, specific shape reflector and plastic fasteners. Coupling feed is adopted to avoid the direct connection between the feed cables and the dipoles. The antenna element matches well in the frequency range of 1.7–2.7 GHz and...
In this paper, a novel inkjet-printed flexible broadband multilayer coupler on a polyimide film (Kapton) in substrate integrated waveguide (SIW) technology is implemented for the first time. A flexible broadband microstrip-to-SIW interconnect is inkjet-printed and its flexibility is tested. An inkjet-printed multilayer coupler is also demonstrated based on the flexible SIW interconnect.
The design and implementation of a novel inkjet-printed flexible broadband multilayer coupler on a polyimide film (Kapton) in substrate integrated waveguide (SIW) technology are demonstrated for the first time. A conformal broadband microstrip-to-SIW interconnect is inkjet-printed and its flexibility is experimentally verified. An inkjet-printed multilayer coupler is designed and fabricated based...
A great challenge in UHF RFID systems consists of increasing their operating range. In this work, a circuit topology consisting of a reflection amplifier and a passive coupler is proposed to both amplify the input signal to the tag as well as the backscattered signal towards the reader. System analysis is provided to estimate the performance requirements of the proposed circuit. The amplifier is optimized...
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