A new compact microstip filtering Diamond Antenna (DA) is presented in this article for possible applications in the Fifth-Generation (5G) at the n77-band (3.3 GHz- 4.2 GHz), such as, Fixed Satellite Service (FSS) which is a radiocommunication system between fixed earth stations utilizing one or more satellites. The structure is implemented on an FR4 Epoxy substrate wich has a dielectric constant ϵr = 4.4, a loss tangent tan(δ) = 0.025 and a thickness h equal to 1.6 mm. The substrate has a small size of 39.7×30×1.6 mm3 which make it suitable to be integrated in various intelligent systems. A good results are obtained with this design, starting with the reflection coefficient S11 which is equal to -22.31 dB at the first resonant frequency 3.57 GHz and -34.41 dB at the second resonant frequency 4.10 GHz. Several other results will be presented and discussed later in this article. The software used for the simulation is High-Frequency Structure Simulator (ANSYS HFSS) which employs the finite element approach.
A prototype of the filtenna (filtering Antenna) was fabricated and measured using the Vectorial Network Analyzer 3656D (VNA).