Affiliations: [a] Sardar Vallabhbhai National Institute of Technology,
Surat, Gujarat, India | [b] Marwadi Education Foundation's Group of Institutions,
Rajkot, Gujarat, India
Abstract: The variation in the spacing height of a metamaterial cover over the
slotted patch antenna is reported to improve its directivity. HFSS software is
used for simulations. An antenna is designed with a metamaterial cover to work
in three bands within the frequency range of 1–4 GHz. A comparative
result analysis of the effect of varying the spatial height of the
metamaterial cover over patch antenna is shown theoretically. The proposed
novel slotted patch antenna design has triband operation in the frequency range
of 1–4 GHz with the miniaturized overall antenna size of the dimension
52.5 mm × 36.5 mm × 1.56 mm, that is equivalent to miniaturized
design reported to our knowledge so far. For the very first time, the concept
of Newton's divided difference method is applied for evaluating the performance
parameters of the antenna. A global formula is developed to indicate the
relationship of the directivity with the spatial height. The designed model has
various applications in the field of satellite, aeronautical and optical
communications mainly in the frequency range of L and S band.
Keywords: Directivity, metamaterial cover, microstrip patch antenna, high frequency structure simulator, Newton's divided difference method, slotted patch antenna
