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Study of rf downconverter mixer for continuous wave signal / Goh Ching Ann

Study of rf downconverter mixer for continuous wave signal_Goh Ching Ann_E3_2009_875004470_00003095292_NI
Pada masa kini, sistem komunikasi tanpa wayar merupakan salah satu teknologi yang penting bagi masyarakat sekarang. Ia membolehkan kita menghantar dan menerima maklumat-maklumat antara satu sama lain dengan mudah. Radio frekuensi (RF) yang berjulat besar dari 3Hz hingga 3GHz telah digunakan sebagai isyarat-isyarat yang dihantar dan diterima. Oleh itu, sesuatu peranti yang dipanggil Pencampur Penukarturun Radio Frekuensi perlu digunakan di bahagian penerima untuk mengecilkan frekuensi yang akan diterima. Dalam projek ini, pengetahuan yang asas tentang peranti ini perlulah diperlajari untuk lebih memahami peranti ini. Selain itu, peranti yang terlibat adalah Pencampur Penukarturun LT®5527 dan ujian-ujian tentang frekuensi keluaran, gandaan penukaran dan 1-dB titik pemampatan telah dijalankan terhadap peranti ini bagi mengetahui tingkah lakunya. Di samping itu, pengiraan, simulasi dan data analisis juga dijalankan. Keputusannya, frekuensi yang diperoleh adalah berpatutan dengan frekuensi yang dimasuk ke dalam LT®5527. Ini menunjukkan LT®5527 merupakan suatu peranti yang sesuai digunakan untuk menurunkan atau mengecilkan frekuensi RF yang besar kepada frekuensi IF yang kecil. _____________________________________________________________________________________ Nowadays, wireless system communication is an important technology for us to transfer our data with each and the other. Besides, there is a type of frequency which called Radio Frequency (RF) with a range from 3Hz to 300GHz has been used as the signal in this system. Therefore, we need a device that can help to convert such large frequencies to our desired frequencies. This device is called downconverter mixer and it is mostly used at the receiver side. Thus, in this project, the basic knowledge about downconverter mixer must be learned so that we can understand the function of this device. Besides, LT®5527 active mixer will be tested by some experiments to determine its characteristic such as output frequency, conversion gain and 1-dB compression point. Furthermore, some calculation, simulation and data analysis have been done at the same time. As the result, the obtained output frequency is satisfied with the relevant input frequency of LT®5527. Therefore, LT®5527 is a device that can be used to downconverting some larger RF frequencies to some desired and smaller IF frequencies.
Contributor(s):
Goh, Ching Ann - Author
Primary Item Type:
Final Year Project
Identifiers:
Barcode : 00003095292
Accession Number : 875004470
Language:
English
Subject Keywords:
wireless system communication; conversion gain and 1-dB compression point; larger RF frequencies to some desired and smaller IF frequencies.
First presented to the public:
1/4/2009
Original Publication Date:
3/13/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 86
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-03-13 16:09:12.425
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Nor Hayati Ismail

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