Zainal Mokhtar, Khursiah (2006) Implementation And Characterization Of Low Noise Amplifier At 4GHz Using RF Test Board. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Elektrik dan Elektronik. (Submitted)
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Abstract
The purpose of this project is to implement and characterize a single state Pseudomorphic High Electron Mobility Transistor (PHEMT) Low Noise Amplifier (LNA) at 4GHz. The LNA used in this project is Agilent’s MGA-72543 which has an operating frequency from 0.1 GHz to 6.0 GHz. This economical, easy-to-use GaAs MMIC Low Noise Amplifier (LNA) is designed for an adaptive CDMA receiver LNA and adaptive CDMA transmit driver amplifier. This LNA features a minimum noise figure of 1.4dB and 14dB associated gain from a single stage, feedback FET amplifier. It is housed in the SOT343 package and is part of the Agilent Technologies CDMA RF chipset. The quantities measured are input reflection coefficient, S11; gain, S21; noise figure, NF; P1 dB compression and input third-order intercept point, IIP3. The LNA has a bypass switch function on chip as well as an adjustable IIP3. The input of the MGA-72543 is internally optimally matched for a low noise figure. However, the input is additionally externally matched for a lower voltage standing wave ratio, VSWR. A simulation has also been performed. However, only the simulation on input reflection coefficient, S11; gain, S21 and noise figure, NF could be done by using Low Noise Amplifier S-parameter model the simulation against the linearity needs the usage of Low Noise Amplifier S-parameter large signal model. This particular model signal is not availabe in the ADS software. The characterization gives full insight into the performance of the GaAs Low Noise Amplifier scheme.
| Item Type: | Monograph (Project Report) |
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| Subjects: | T Technology T Technology > TK Electrical Engineering. Electronics. Nuclear Engineering |
| Divisions: | Kampus Kejuruteraan (Engineering Campus) > Pusat Pengajian Kejuruteraaan Elektrik & Elektronik (School of Electrical & Electronic Engineering) > Monograph |
| Depositing User: | Mr Engku Shahidil Engku Ab Rahman |
| Date Deposited: | 29 May 2023 08:59 |
| Last Modified: | 29 May 2023 08:59 |
| URI: | http://eprints.usm.my/id/eprint/58724 |
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