Dual Frequency Triangular Slotted Microstrip Patch Antenna for Ku Band Applications

A single feed, compact, new shaped, dual band microstrip patch antenna has presented in this paper. Here three equilateral triangular slots are introduced in the three edges of the patch and a small feed line has used another edge of the patch to obtain the dual band. The antenna has a condensed structure where patch dimension is about 8.5mm by 7.96mm by 1.905mm leading to good bandwidths covering 13.15 GHz to 13.72 GHz and 16.04 GHz to 16.58GHz. The return loss of -19.00dB is achieved at the first resonant frequency at 13.61 GHz and -28.69dB is at second resonance frequency at 16.33GHz. Stable average peak gain that is observed across the operating band in both lower and higher frequency is almost 3.53dB and 5.562dB respectively .The radiation patterns are nearly omnidirectional with moderate gain in both these operating bands. Good results have been established in dual frequencies at 13.62GHz as downlink and 16.33GHz as uplink. This low profile nature and simple configuration of the proposed antenna show the way to easy fabrication and make it adaptable for the application in wireless and satellite communication Streszczenie. W artykule przedstawiono dwupasmową prostokątną antene mikropaskową o jednym doprowadzeniu i nowym ksztalcie. W trzech rogach znajdują sie trzy szczeliny w ksztalcie trojkąta rownobocznego, a w czwartym doprowadzenie linii. Antena posiada pasmo 13,15-13,72GHz oraz 16,04-16,58GHz. Niski profil oraz prosta konfiguracja wskazują na latwą metode produkcji oraz mozliwośc zastosowania w aplikacjach bezprzewodowych i komunikacji satelitarnej. (Dwuczestotliwościowa antena mikropaskowa z trojkątnymi szczelinami w zastosowaniu do pasma Ku).