Triple Band Shaped Egypt Slotted Patch Antenna for C & X Band Satellite Application

The presented work aims to develop a low-profile triple-band EGYPT slotted antenna dedicated to X-band applications such as Satcom. The effects of both the full EGYPT word and the combination of EGYPT word letters (E, EG, EGY, EGYP, then EGYPT) on the patch surface current is investigated using a CST Studio Suite Electromagnetics (EM) solver based on Finite Difference Time Domain (FDTD). The microstrip patch antenna is printed on ROGERS RT/Duroid 5880 dielectric substrate of dielectric constant (
$\varepsilon r=2.2$
) and tangent loss
$(\text{tan}(\delta)=0.02)$
with an overall dimension of
$44\times 41\times 1.6$
mm
³
and patch dimension of
$24\times 21\ \ \text{mm}^{2}$
. The simulation shows that the proposed antenna achieves a gain of 4.65dB, 4.15dB, and 8.3dB at the 6.35 GHz, 7.94 GHz, and 11.58 GHz frequency. An obtained antenna efficiency of 87%, 77%, and 83% is obtained, making the antenna suitable for Satcom application. Both simulation and measurement results done using ROHDE & SCHWARZ ZVB20 network analyzer have a good agreement.