DIRECTLY-COUPLED MICROSTRIP ARRAY ANTENNAS FOR WIDEBAND APPLICATION

Dinesh B Ganure, S L Mallikarjun, P M Hadalgi, P V Hunagund

Abstract: A method for increasing the bandwidth of microstrip array antenna by adding additional resonator, which is directly – coupled to the non – radiating edges of a radiating element is narrated. The experimental result of four elements non-radiating edge directly – coupled rectangular microstrip array antenna (FNCRMAA) shows wide band with bandwidth of 15.63 %. Further extending the elements of array to eight elements non-radiating edge directly – coupled rectangular microstrip array antenna (ENCRMAA), the antenna shows improved impedance bandwidth up to 20.76 %. The design specifications, radiation patterns and gain of the proposed antennas are shown and reported

Keywords: Wide band, Non-radiating edge, direct – coupling, corporate feed, microstrip array

DOI: https://doi.org/10.15623/ijret.2014.0315003