After launching on (16/09/22), the Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia (DTE FTUI) again held the Friday Morning Forum (FMF). This activity, which is routinely held every Friday, has entered its second series. This week, FMF presented speakers from the Antenna Propagation and Microwave Research Group (AMRG) chaired by Prof. Dr. Ir. Eko Tjipto Raharjo., M.Sc., and Prof. Dr. Ir. Fitri Yuli Zulkifli., S.T., M.Sc., IPU., was held on (23/09/22) at the MRPQ DTE FTUI Auditorium.

“Antenna Propagation and Microwave Research Group (AMRG) is a research group born in 1997. Its long history continues to grow, 2000 it succeeded in establishing an anti-echo chamber facility (QUE project), and in 2007 renovating an anti-echo chamber and maritime radar with IRCTR Tu Delft, 2010 he collaborated with Kominfo and received grants for tools, such as a VNA measuring tool up to 13 Giga, in 2016 he conducted Pusnas and designed a Radar, and in 2021 he succeeded in creating a new VNA: 40 GHz and also received Prof. Fitri Yuli Zulkifl’s Laboratory from FTUI “For information, AMRG has more than 60 research grants, publication of more than 200 papers (Q1=+8, Q2=+7, Q3=+11), and HKI 3 patents,” said Prof. Fitri Yuli in giving her speech.

On this occasion, A’Isya Nur Aulia Yusuf (AMRG member) had the opportunity to become a presenter at Session 2 of FMF. She presented a research topic entitled “Antenna Design Development Using Machine Learning for Grain Enhancement”. This time the FMF was moderated by Nur Ibrahim, a member of the Data Engineering and Intelligent System RG (DEIS-RG).

The research carried out by A’Isya at AMRG, was motivated by the concept of wireless communication, that previously mobile phones were still large with long antennas. As times progress, the antenna trend is getting smaller in terms of size. Meanwhile, one type of monopole antenna cannot meet the needs of the device. For that, A’Isya has a demand to make an antenna that can be embedded in the device. So, A’Isya’s research revolves around microstrip antennas.

“The selection of the microstrip antenna was made because it has advantages, such as its smaller size compared to monopole antennas, the side dimensions are not too thick, and it is easy to integrate with other electronic components. However, the small size of microstrip-type antennas makes bandwidth narrow and low gen. So, how can the bandwidth be widened to accommodate the required frequency with a method that still keeps the gene high,” explained A’Isya.

There are several ways to increase genes, one of the methods used by A’Isya is Defected Grain Structure (DGS). This DGS was chosen because it can increase the gene and change the growth without having to increase the dimensions of the antenna. Later, growth will be designed as a whole. Changing grown was done to increase the genes in the microstrip antenna.

After the presentation session from the presenter, the activity continued with a question and answer session between A’Isya and the participants, such as Professors, Lecturers, and DTE FTUI Undergraduate and Postgraduate Students.


Public Communication Bureau
Faculty of Engineering, Universitas Indonesia