High frequency of low noise amplifier architecture for WiMAX application: A review

Ibrahim, Abu Bakar; Zulkifli, Che Zalina; Ariffin, Shamsul Arrieya; Kahar, Nurul Husna Abdul

doi:10.11591/ijece.v11i3.pp2153-2164

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…Perancangan LNA dilakukan dalam beberapa tahapan agar perancangan dapat dilakukan secara sistematis. Perancangan LNA terdiri dari beberapa parameter penting yaitu noise figure dan faktor kestabilan [9]. Proses awal perancangan dilakukan dengan mengidentifikasi spesifikasi LNA yang digunakan pada jaringan Long Term Evolution (LTE), kemudian memilih transistor yang tepat, dilanjutkan dengan melakukan perhitungan dimensi mikrostrip.…”

Section: Metode Penelitian 21 Diagram Alirunclassified

Low Noise Amplifier Dual Stage dengan Metode π-Junction untuk Long Term Evolution (LTE)

Charisma

Widianto

Hidayat

et al. 2022

TELKA

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Long Term Evolution (LTE) merupakan teknologi tanpa kabel yang memerlukan komponen-komponen elektronika untuk mendukung performansinya. Salah satu komponen elektronika tersebut yaitu Low Noise Amplifier (LNA) sebagai penguat di bagian penerima. Penelitian ini merancamg Low Noise Amplifier dengan bantuan software berdasarkan perhitungan. LNA bekerja pada frekuensi 1,8 GHz yang merupakan pita frekuensi LTE. Tahapan perancangan LNA dimulai dari pemilihan transistor, rangkaian DC bias, dan penyesuai impedansi. Transistor ATF 34143 menjadi pilihan untuk LNA karena sesuai dengan spesifikasi yang dibutuhkan. Komponen perancangan LNA untuk rangkaian DC meliputi resistor, kapasitor, dan induktor. Salah satu metode yang digunakan pada rangkaian penyesui impedansi yaitu metode π-junction pada bagian input dan output. Rangkaian penyesuai impedansi menggunakan mikrostrip. Sebuah transitor ditambahkan secara cascade untuk meningkatkan performansi LNA. Paremeter-parameter penting sebagai kinerja LNA yaitu noise figure, faktor kestabilan, dan gain. Hasil simulasi perancangan LNA ini memperoleh nilai noise figure sebesar 0,561 dB, gain 36,463 dB, dan faktor kestabilan 1,785. Parameter hasil perancangan telah memenuhi spesfikasi LNA serta kebutuhan LTE.Long Term Evolution (LTE) is a wireless technology that requires electronic components to support its performance. One of the electronic components is the Low Noise Amplifier (LNA) as an amplifier at the receiver. This study designed a Low Noise Amplifier with the help of software based on calculations. LNA works on the 1.8 GHz frequency which is the LTE frequency band. The LNA design stages start from the selection of transistors, DC bias circuits, and impedance matching. The ATF 34143 transistor is the choice for LNA because it fits the required specifications. LNA design components for DC circuits include resistors, capacitors, and inductors. One of the methods used in impedance matching circuits is the π-junction method on the input and output sections. Impedance adjustment circuit using microstrip. A transistor is added cascade to improve LNA performance. Important parameters as the performance of LNA are noise figure, stability factor, and gain. The simulation results of this LNA design obtain a noise figure value of 0.561 dB, a gain of 36.463 dB, and a stability factor of 1.785. The design parameters have met the LNA specifications and LTE requirements.

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Section: Metode Penelitian 21 Diagram Alirunclassified

Low Noise Amplifier Dual Stage dengan Metode π-Junction untuk Long Term Evolution (LTE)

Charisma

Widianto

Hidayat

et al. 2022

TELKA

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“…WiMAX is a standard for wireless communications that was developed to construct metropolitan area networks (MANs). These networks have a range of up to 50 kkilometer (31 mile) [1]. It is a standard for Worldwide Interoperability for Microwave Access, and it offers users a variety of benefits in addition to increased bandwidth and a greater range for the use of data and multimedia applications.…”

Section: Introductionmentioning

confidence: 99%

Effective Utilization of An Unused Bandwidth in IEEE 802.16 Network

Abubakar Ibrahim,

Salsabil,

Lawal

2022

JTEC

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A large percentage of available bandwidth in IEEE 802.16 networks can be utilised by using previous unused bandwidth. This is a common problem that occurs inside IEEE 802.16 networks, and it manifests itself when a subscriber station in an IEEE 802.16 network's Quality of Service (QOS) assured services is unable to predict how much data is being held back as unused bandwidth. As a direct consequence of this fact, the ongoing research has proposed simulating the process by which the remainder of the reserved bandwidth that is not being used will be recycled in order to enhance the Quality of Service and preserve the existing bandwidth reservation. Therefore, it was conceived that bandwidth might be reserved in the subscriber station separately from the bandwidth that is used for the downlink and the uplink of data transmission. This would prevent wasting the bandwidth. Through the utilization of an appropriate scheduling strategy associated with Round Robin, a simulation of an allocation of unoccupied bandwidth was carried out. The simulation findings reveal that an optimised bandwidth can ensure that the model can recycle 50–60 percent of the average amount of idle bandwidth. This is achieved through the allocation of unused bandwidth scheduling techniques. The findings of this research have demonstrated that it is possible to estimate the amount of data that is set aside as unused bandwidth and reuse it.

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High frequency of low noise amplifier architecture for WiMAX application: A review

Cited by 2 publications

References 29 publications

Low Noise Amplifier Dual Stage dengan Metode π-Junction untuk Long Term Evolution (LTE)

Low Noise Amplifier Dual Stage dengan Metode π-Junction untuk Long Term Evolution (LTE)

Effective Utilization of An Unused Bandwidth in IEEE 802.16 Network

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