Please use this identifier to cite or link to this item:
Title: Design and Analysis of Novel Receiver Front end Subsystems in Ku band for Satellite Applications
Researcher: Patel, Sanket S.
Guide(s): Gupta, Sanjeev and Ghodgaonkar, Deepak
Keywords: Satellite
Satellite Application
Low Noise Amplifier (LNA)
Multistage circuit
Local Oscillator
University: Dhirubhai Ambani Institute of Information and Communication Technology (DA-IICT)
Completed Date: 2014
Abstract: A novel receiver front-end; Low Noise Amplifier (LNA), mixer and Local Oscillator (LO); is designed and analyzed in Ku-band. Different design aspects of the subsystems along with the trade-offs and improvements are presented. newlineTwo different configurations of the three-stage cascaded LNAs are designed, analyzed, fabricated and tested. The aim is to design, analyze, and improve the performance parameters of three-stage LNA, especially, to minimize the noise figure while keeping considerable gain. A cumulative approach of two-port modelling and noise extraction is presented. The work is extended to the multistage circuit level analysis from the device level analysis. For the same, sixteen-element device distributed model with all possible inherent resistor temperature noise sources is considered and analyzed. Input referred noise was analyzed and presented in terms of intrinsic and extrinsic parasitics. Noise figure was analyzed in terms of correlated and uncorrelated noises, and the conditions were indentified in our case, to make the noise figure minimum by making the correlated noise ideally zero. The achieved noise figure is as low as 1.46dB (with 30.1dB gain) in Ku-band by analyzing the three-stage LNA considering gain-constrained-noise optimization, extrinsic device parasitics, stability resistor and matching networks to the next stage. Measurement results are promising in comparison with the recent relevant work published in Ku-band LNA. newline
Pagination: xiv, 93 p.
Appears in Departments:Department of Information and Communication Technology

Files in This Item:
File Description SizeFormat 
01_title.pdfAttached File29.34 kBAdobe PDFView/Open
02_declaration and certificate.pdf23.36 kBAdobe PDFView/Open
03_abstract.pdf38.63 kBAdobe PDFView/Open
04_acknowledgements.pdf38.54 kBAdobe PDFView/Open
05_contents.pdf24.22 kBAdobe PDFView/Open
06_list of figures.pdf221.73 kBAdobe PDFView/Open
07_list of tables.pdf22.04 kBAdobe PDFView/Open
08_chapter 1.pdf32.11 kBAdobe PDFView/Open
09_chapter 2.pdf523.39 kBAdobe PDFView/Open
10_chapter 3.pdf2.66 MBAdobe PDFView/Open
11_chapter 4.pdf646.26 kBAdobe PDFView/Open
12_chapter 5.pdf653.25 kBAdobe PDFView/Open
13_chapter 6.pdf38.25 kBAdobe PDFView/Open
14_references.pdf66.38 kBAdobe PDFView/Open
15_appendix.pdf219.47 kBAdobe PDFView/Open
16_list of publications.pdf25.24 kBAdobe PDFView/Open

Items in Shodhganga are protected by copyright, with all rights reserved, unless otherwise indicated.