In this paper, a symmetrical monolayer metamaterial superstrate is placed on microstrip patch antenna resonant at 3.5 GHz. MTM based CSRR Complementary Split Ring Resonators, constituting two rectangular rings opposite splits both ends, which are printed Rogers RT 5880 type substrate with relative permittivity of 2.2, tangential loss 0.0009, and thickness 0.508mm. This resonator capable exhibit...

A conventional active phased array antenna (APAA) for a military purpose is composed of modules each of which includes a radiator, a high power amplifier (HPA), a low noise amplifier (LNA), a phase shifter and combiners on a printed circuit board (PCB). Therefore, such a APAA is thicker than the longitudinal size of the PCB. Several attempts of planar APAAs were proposed to overcome the disadva...

In this paper, an optimal approach to design wideband tapped-delay line (TDL) array antenna is proposed. This approach lets us control the array angular and frequency response over a wide frequency band. To this end, some design restrictions are defined and a multi-objective optimization problem is constructed by putting the individual restrictions together. The optimal weights of the TDL proce...

A novel Defected Ground Structure (DGS) is proposed to miniaturize a 2×2 Modified Corporate Feed Planar Antenna Array (M-CFPA) with modified corporate feeding network. The DGS altered the surface current distribution and shifted resonance frequency lower side. After running parametric sweep of length width patch antenna element, achieved miniaturized array resonating at 2.4 GHz frequency. desig...