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 operating frequency 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.