Czasopismo | PRZEGLĄD ELEKTROTECHNICZNY | Rocznik 2021 - zeszyt 5

Return Loss Improvement of Radial Line Slot Array Antennas on Closed Ring Resonator Structure at 28 GHz

10.15199/48.2021.05.10

nr katalogowy: 131568
10.15199/48.2021.05.10

Streszczenie

This paper aims to investigate and design a radial line slot array antenna (RSLA) with closed ring resonator (CRR) for return loss improvement. The CRR printed on a dielectric substrate with a circumference alignment position attached to the RLSA antenna. The CRR structure used the combination of the four rings with a rectangular shape and showed a response in the range of 25.30 GHz up to 31.40 GHz. It is worth mentioning that applying a gap cavity height (h) of the superstrate layer to the CRR structure is needed to improve the return loss significantly. However, as the superstrate layer of the CRR structure is increased the value of the gap cavity height must be adjustable to ensure that the return loss is maintained at the same resonant frequency. The return loss performance showed a significant improvement from -10.30 dB to -12.34 dB for λ/4 gap between the antenna and the superstrate.

Abstract

Artykuł ma na celu zbadanie i zaprojektowanie radialnej anteny liniowej z matrycą szczelinową (RSLA) z rezonatorem zamkniętym pierścieniem (CRR) w celu poprawy strat odbiciowych. CRR wydrukowany na podłożu dielektrycznym z pozycją wyrównania obwodu przymocowaną do anteny RLSA. Konstrukcja CRR wykorzystywała kombinację czterech pierścieni o prostokątnym kształcie i wykazywała odpowiedź w zakresie od 25,30 GHz do 31,40 GHz. Warto wspomnieć, że zastosowanie wysokości wnęki szczelinowej (h) warstwy superstratu do struktury CRR jest potrzebne do znacznej poprawy strat powrotnych. (Poprawa tłumienia odbicia anten radialnych z matrycą liniową w strukturze rezonatora z zamkniętym pierścieniem przy 28 GH)

Słowa kluczowe

Keywords

Bibliografia

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