A Multiband Rhombus Shaped Patch Antenna with Rhombus Slots for C, X, and Ku-Band Applications

A multiband rhombus-shaped patch antenna with rhombus slots is presented in this paper. The dimensions of the proposed antenna are 50x48x1.2mm(3) at the operatingfrequency is 5.54GHz. The rhombus patch antenna with rhombus slots results in a multiband operation operating in a bandwidth of 80MHz (6.60GHz to 6.68GHz), 80MHz (8.36GHz to 8.44GHz), 400MHz (12.65GHz to 13.05GHz), 450MHz (14.76GHz to 15.21GHz), and 990MHz (16.73GHz to 17.72GHz) with a peak gain of 6.02dBi at 12.88GHz and exhibits circular polarization at the frequency range of 15.56GHz to 15.77GHz. The proposed antenna is suitable for C, X, and Ku- band applications. Simulations are carried out using Ansys HFSS software.