Abstract
In this paper a new design of a dual small band small elliptical microstrip antenna is proposed for Ku and K band satellite applications. The basic antenna structure is an elliptical patch with inset-feed, which is modified by adding two rectangular slots in the radiation patch. The proposed antenna has been designed and fabricated on 1.58 mm thick FR4 substrate whose dielectric constant is 4.4, with dimensions of about 10×12×1.58 mm³. The antenna structure was validated using two different electromagnetic solvers and by measuring the results using a Vector Network Analyzer (VNA). The measured and simulated results show two resonant frequencies that define two bandwidths. Moreover, the proposed antenna frequency bands and the consistent and symmetrical radiation patterns make it an appropriate candidate for many applications such as the Ku/K band satellite application and wireless communications.
Highlights
The space industry has developed considerably and offers very interesting prospects with more than 100 new satellites launched each year
The proposed antenna performance was studied by using an electromagnetics solvers based on the finite element method (FEM), which is HFSSTM and CSTTM
To validate our antenna design, we designed and simulated the same structure using another solver based on the finite integration technique (FIT)
Summary
The space industry has developed considerably and offers very interesting prospects with more than 100 new satellites launched each year. Printed antennas generally use a single layer of substrate, and are widely used in microwave and millimeter wave applications. They are in any geometric form and are arranged on a dielectric substrate and a ground plane. To achieve multi-application operation with different frequencies at the same time, we use a multiband antenna where the same antenna can be used to operate at multiple frequencies [9,10,11]. This reduces the manufacturing costs by avoiding space limitation problems and minimizing the antenna size. Compared to other dual band microstrip antennas [14 -18], our antenna has the advantage of its small size, high gain and high bandwidth
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