Muhammad Fauzan Edy Purnomo, Rahmadwati Rahmadwati, Vita Kusumasari, Akhmad Zainuri
This paper presents the design and performance analysis of patch stack six patches as receiver and transmitter become one configuration of triangular microstrip array antenna both simulation and measurement results at low elevation, {El}=48 {\mathrm{o}} and at frequency target 2.5025 GHz and 2.6575 GHz. In this time, we compare the receiver (Rx) and the transmitter (Tx) of this antenna, especially the values of frequency characteristic, input impedances, and radiation pattern. Also, we add the PET radome for Rx to be analyzed its effect toward the antenna performance. The method of moments is used considering an infinite ground analysis. The input impedances of this antenna in calculation and measurement both at 2.5025 GHz for Rx and at 2.6575 GHz for Tx are closed to 50 \Omega or about 33.07+\mathrm{j}2.68\Omega and about 35.17 +\mathrm{i}1.79\Omega and about 32.02 + \mathrm{i}16.44 \Omega and 31.2 +\mathrm{j}2.22\Omega, respectively. Moreover, the radiation pattern, especially the elevation cut-plane at El =48 {\mathrm{o}} for six patches of Rx around 0.007 dB and 0.1 dB of axial ratio and 7.2 dBic and 7.1 dBic of gain. While for Tx about dB and 1.2 dB of axial ratio and 5.9 and 5.8 of gain. Moreover, when using a sized PET radome 22 x 11, the performance of antenna, especially the elevation angle which shift from {El} =38 {\mathrm{o}} to {El }=58 {\mathrm{o}} at \mathrm{f}=2.5025 GHz (Rx) yields the gain more than 5 dBic and the axial ratio less than 3 dB. Here, the antenna performance does not be affected in significant value. © 2022 IEEE.
Universitas Brawijaya, Department of Electrical Department, Malang, Indonesia; Universitas Negeri Malang, Mathematics Department, Malang, Indonesia