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Differential mixer design for w-cdma application / Yii Sek Fun

Differential mixer design for w-cdma application_Yii Sek Fun_E3_2009_875004529_00003095350_NI

Abstract Disertasi ini adalah mengenai satu pencampur Gilbert aktif penurunan ke bawah dalam seni bina penerima radio frekuensi bagi aplikasi W-CDMA (Wide-Band Code Division Multiple Access). Pencampur ini direka dengan menggunakan Silterra proses CMOS 0.18𝜇𝑚 Silterra dengan bekalan voltan 1.8𝑉. Cadence SpectreRF telah digunakan sebagai alat penyelaku bagi projek ini. Isyarat masukan W-CDMA RF berfrekensi 2.14𝐺𝐻𝑧 dan masukan pengayun (LO) berfrekuensi 2.16𝐺𝐻𝑧 telah menghasilkan isyarat IF berfrekuensi 20𝑀𝐻𝑧 . Pencampur yang direka berupaya membekalkan gandaan voltan sebanyak 2.326𝑑𝐵 dengan arus 3.169𝑚𝐴 , titik cegatan masukan bagi pencampur ialah 1.57𝑑𝐵𝑚 dan titik kemampatan 1𝑑𝐵 ialah −8.78𝑑𝐵𝑚. Pencampur yang dicadangkan juga menunjukkan angka hingar yang rendah iaitu 8.258𝑑𝐵. _________________________________________________________________________________________ This dissertation presents the design of an active Gilbert downconversion mixer in the RF receiver architecture for Wide-Band Code Division Multiple Access (W-CDMA) application. The mixer was designed using the Silterra’s CMOS 0.18𝜇𝑚 process with 1.8𝑉 supply voltage. Cadence SpectreRF simulator was used as the design tool for this project. For the 2.14𝐺𝐻𝑧 WCDMA RF and a 2.16𝐺𝐻𝑧 LO input, an 20𝑀𝐻𝑧 signal IF was generated. The mixer is able to provide a voltage gain of 2.326𝑑𝐵 with a current of 3.169𝑚𝐴, input intercept point (𝐼𝐼𝑃􀬷 ) of is 1.57𝑑𝐵𝑚 and a 1𝑑𝐵 compression point of −8.78𝑑𝐵𝑚. The proposed mixer also shows low noise figure of 8.258𝑑𝐵.

Contributor(s): Yii Sek Fun - Author Primary Item Type: Final Year Project Identifiers: Accession Number : 875004529 Language: English Subject Keywords: wireless ; telecommunication; transceivers First presented to the public: 4/1/2009 Original Publication Date: 10/2/2018 Previously Published By: Universiti Sains Malaysia Place Of Publication: School of Electrical & Electronic Engineering Citation: Extents: Number of Pages - 94 License Grantor / Date Granted:   / ( View License ) Date Deposited 2018-10-02 16:36:20.701 Date Last Updated 2019-01-07 11:24:32.9118 Submitter: Nor Hayati Ismail

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