Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: İstanbul Teknik Üniversitesi, Elektrik-Elektronik, Elektronik Ve Haberleşme Mühendisliği, Türkiye
Tezin Onay Tarihi: 2024
Tezin Dili: Türkçe
Öğrenci: Evren Uysal
Asıl Danışman (Eş Danışmanlı Tezler İçin): Metin Yazgı
Eş Danışman: Tayfun Nesimoğlu
Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
Özet:
Software Defined Radios (SDRs) aim to cover commercial communication standards in one
transceiver unit. Since frequency tunable components offer not to stick in one design frequency
but allow components to be reconfigurable, it is considered as an enabling technology for SDRs.
In consequence, many kinds of research on tunable components have been conducted such as
filters, matching networks, antennas, amplifiers, and resonators. Other than SDRs, tunable
components provide convenience to adopt new communication standards without redesigning
the hardware and reduces new hardware design effort for each frequency band that it consists
of.
This work aims to design a broadband frequency tunable amplifier. The amplifier is decided to
have continuous tunability in GSM-WLAN frequency bands (850-5200 MHz). Also, the aimed
specifications have a small-signal gain greater than 15 dB with low return loss (<1dB) and low
VSWR (<2:1).
To achieve tunability in microwave circuits many frequency tuning techniques have been
suggested in the literature, for example, varactor diodes, RF-micro electromechanical systems
(MEMS), ferroelectric Barium Strontium Titanate (BST) capacitors, and CMOS digital switches.
Each technique has advantages and disadvantages compared to the other. The most suitable
technique/techniques compared to others is chosen to achieve design specifications.