Design and fabrication of a wideband CMOS continuous-time integrated baseband active filter for a synthetic aperture radar receiver

This thesis presents the design and fabrication of CMOS continuous-time lowpass integrated baseband filters intended for a fully integrated multiband Synthetic Aperture Radar (SAR) receiver. The low-pass filters are part of a bistatic SAR receiver which exhibits less complexity of circuit implementa...

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spelling my-unimap-725682021-11-18T07:49:34Z Design and fabrication of a wideband CMOS continuous-time integrated baseband active filter for a synthetic aperture radar receiver Sohiful Anuar, Zainol Murad, Dr. This thesis presents the design and fabrication of CMOS continuous-time lowpass integrated baseband filters intended for a fully integrated multiband Synthetic Aperture Radar (SAR) receiver. The low-pass filters are part of a bistatic SAR receiver which exhibits less complexity of circuit implementation compared to its monostatic type of antenna counterpart. The bistatic SAR separates the transmit circuits from the receive circuits which is divided into sub-apertures. Since a large number of channels are required, it is very desirable to design integrated receivers in modern ultra deep submicron technologies which can cope with a limited space. In this SAR receiver, the band of operation is bandpass filtered in the radiator panel. However, it is important to have filtering again in the baseband to keep the signal path clean from interfering signals and to limit the noise bandwidth. This continuous-time baseband filter needs to be on-chip and the cutoff frequency must be at 50 MHz up until 160 MHz. This is very challenging in ultra deep submicron Complementary Metal Oxide Semiconductor (CMOS) technologies in which a low supply voltage around 1.2 V is demanded. In addition, the integrated low-pass filter is targeted to have low ±0.75 dB to ±1 dB passband ripple and embedded gain to cater the requirement of the baseband. At the same time, the filter needs to be the most selective since it is located before the Analog to Digital Converter (ADC), to avoid the aliasing noise and unwanted out-of-band signals in the signal sampling. The main objective of this work is to design and fabricate a low-pass continuous-time integrated baseband filter circuit with cutoff frequency of 50 MHz up to 160 MHz as part of a fully integrated SAR receiver. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72568 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72568/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72568/1/Page%201-24.pdf 7f65b6df187d2af8562f2c3ea36b097e http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72568/2/Full%20text.pdf a78ba8450b544492a30ea52d0cf11dcd http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72568/4/Faizah%20Abu%20Bakar.pdf 57419446c473dbb351e6eb61a0199ec6 Universiti Malaysia Perlis (UniMAP) Metal oxide semiconductors, Complementary Broadband communication systems Complementary Metal Oxide Semiconductor (CMOS) Synthetic Aperture Radar (SAR) School of Microelectronic Engineering
institution Universiti Malaysia Perlis
collection UniMAP Institutional Repository
language English
advisor Sohiful Anuar, Zainol Murad, Dr.
topic Metal oxide semiconductors
Complementary
Broadband communication systems
Complementary Metal Oxide Semiconductor (CMOS)
Synthetic Aperture Radar (SAR)
spellingShingle Metal oxide semiconductors
Complementary
Broadband communication systems
Complementary Metal Oxide Semiconductor (CMOS)
Synthetic Aperture Radar (SAR)
Design and fabrication of a wideband CMOS continuous-time integrated baseband active filter for a synthetic aperture radar receiver
description This thesis presents the design and fabrication of CMOS continuous-time lowpass integrated baseband filters intended for a fully integrated multiband Synthetic Aperture Radar (SAR) receiver. The low-pass filters are part of a bistatic SAR receiver which exhibits less complexity of circuit implementation compared to its monostatic type of antenna counterpart. The bistatic SAR separates the transmit circuits from the receive circuits which is divided into sub-apertures. Since a large number of channels are required, it is very desirable to design integrated receivers in modern ultra deep submicron technologies which can cope with a limited space. In this SAR receiver, the band of operation is bandpass filtered in the radiator panel. However, it is important to have filtering again in the baseband to keep the signal path clean from interfering signals and to limit the noise bandwidth. This continuous-time baseband filter needs to be on-chip and the cutoff frequency must be at 50 MHz up until 160 MHz. This is very challenging in ultra deep submicron Complementary Metal Oxide Semiconductor (CMOS) technologies in which a low supply voltage around 1.2 V is demanded. In addition, the integrated low-pass filter is targeted to have low ±0.75 dB to ±1 dB passband ripple and embedded gain to cater the requirement of the baseband. At the same time, the filter needs to be the most selective since it is located before the Analog to Digital Converter (ADC), to avoid the aliasing noise and unwanted out-of-band signals in the signal sampling. The main objective of this work is to design and fabricate a low-pass continuous-time integrated baseband filter circuit with cutoff frequency of 50 MHz up to 160 MHz as part of a fully integrated SAR receiver.
format Thesis
title Design and fabrication of a wideband CMOS continuous-time integrated baseband active filter for a synthetic aperture radar receiver
title_short Design and fabrication of a wideband CMOS continuous-time integrated baseband active filter for a synthetic aperture radar receiver
title_full Design and fabrication of a wideband CMOS continuous-time integrated baseband active filter for a synthetic aperture radar receiver
title_fullStr Design and fabrication of a wideband CMOS continuous-time integrated baseband active filter for a synthetic aperture radar receiver
title_full_unstemmed Design and fabrication of a wideband CMOS continuous-time integrated baseband active filter for a synthetic aperture radar receiver
title_sort design and fabrication of a wideband cmos continuous-time integrated baseband active filter for a synthetic aperture radar receiver
granting_institution Universiti Malaysia Perlis (UniMAP)
granting_department School of Microelectronic Engineering
url http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72568/1/Page%201-24.pdf
http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72568/2/Full%20text.pdf
http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72568/4/Faizah%20Abu%20Bakar.pdf
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