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Analytical Performance of Low Noise Amplifier Using Single-Stage Configuration for ADS-B Receiver M. Reza Hidayat; Ilham Pazaesa; Salita Ulitia Prini
Jurnal Elektronika dan Telekomunikasi Vol 21, No 2 (2021)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v21.91-97

Abstract

Automatic dependent surveillance-broadcast (ADS-B) is an equipment of a radar system to reach difficult areas. For radar applications, an ADS-B requires a low noise amplifier (LNA) with high gain, stability, and a low noise figure. In this research, to produce an LNA with good performance, an LNA was designed using a BJT transistor 2SC5006 with DC bias, VCE = 3 V, and current Ic = 10 mA, also a DC supply with VCC = 12 V, to achieve a high gain with a low noise figure. The initial LNA impedance circuit was simulated using 2 elements and then converted into 3 elements to obtain parameters according to the target specification through the tuning process, impedance matching circuit was used to reduce return loss and voltage standing wave ratio (VSWR) values. The LNA sequence obtains the working frequency of 1090 MHz, return loss of -52.103 dB, a gain of 10.382, VSWR of 1.005, a noise figure of 0.552, stability factor of 0.997, and bandwidth of 83 MHz. From the simulation results, the LNA has been successfully designed according to the ADS-B receiver specifications.
Analisis Power Link Budget Pada Rancangan Jaringan Wireless Outdoor Menggunakan ISP Design Center Studi Kasus Desa Kutanagara Garut M. Reza Hidayat; Tubagus Indra Maulana Fauzian; Erna Alimudin; Hajiar Yuliana
Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan Vol 10 No 2 (2022): TELEKONTRAN vol 10 no 2 Oktober 2022
Publisher : Program Studi Teknik Elektro, Fakultas Teknik dan Ilmu Komputer, Universitas Komputer Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/telekontran.v10i2.7978

Abstract

One of the problems with internet networks in rural areas is the difficulty of connecting cable-based internet because the distance is too far, wireless/wireless-based internet networks can be an alternative solution to these problems. A research analysis of the Power Link Budget calculation was carried out in planning the outdoor wireless internet network in the village. Kutanagara Garut. The test was carried out using the Power Link Budget calculation method and simulation using the Ubiquiti ISP Design Center application with a LiteAP GPS transmitter device and a NanoBeam 5AC receiver. Network planning is made using the Point to Point (PTP) system in the 5725 MHz frequency band to be precise at 5725 MHz Sub Band NII-3. The parameters tested are SOM (EIRP, margin signal), free space loss (FSL), Fresnel zone clearance (FZC), coverage area, signal strength obtained and internet speed capacity. The results of the calculations and configurations show that the EIRP value of the sender is 36 dBm, the EIRP of the receiver is 36 dBm, the maximum bandwidth is 20 MHz, Fresnel zone clearance is 3.4 m and the received signal strength is -49 dBm. These results have met the standards set by KOMINFO and a network design can be made. The results of the network simulation show that the internet network design has covered the entire area of Kutanagara Garut Village with an estimated signal obtained is -49 dBm, with a signal margin of 46.2 dB which already meets the standards of TIPHON with network classification included in the outstanding category (very good). Has a maximum internet capacity of 147 Mbps consisting of 74 Mbps download speed and 74 Mbps upload speed
ANTENA SUSUN 4×1 MIKROSTRIP MENGGUNAKAN BIQUAD PATCH PADA FREKUENSI X-BAND UNTUK TELEKOMUNIKASI TERESTRIAL M. Reza Hidayat; Muhammad Luthfi Kurniawan
Jurnal Elektro dan Telekomunikasi Terapan (e-Journal) Vol 9 No 2 (2022): JETT Desember 2022
Publisher : Direktorat Penelitian dan Pengabdian Masyarakat, Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jett.v10i2.5454

Abstract

The need for information exchange that encourages the development of telecommunications technology that can be a medium for delivering information to connect various places on the earth's surface or called terrestrial telecommunications. In wireless communication, the use of radio waves as a medium for propagation of information is considered more effective than physical media such as cables. A high radio frequency value such as X-Band will result in a smaller dimensional device. The use of microstrip type antennas has advantages in terms of small dimensions, inexpensive fabrication, and simple design but has low gain. Therefore, the design of a microstrip antenna with the array method becomes a solution that can be used in applications in terrestrial telecommunications. In this research, a microstrip antenna with a biquad-shaped patch has been designed and realized with a 4×1 array method that operates in the X-Band frequency band. This antenna works at a frequency of 11.96 GHz with a return loss of -23.51 dB and a VSWR of 1.13.