Sharif University of Technology

 IEEE Journal papers:


[10] Haeri, A. A. R., Karkani, M. G., Sharifkhani, M., Kamarei, M., & Fotowat-Ahmady, A. (2017). "Analysis and design of power harvesting circuits for ultra-low power applications." IEEE Transactions on Circuits and Systems I: Regular Papers, 64(2), 471-479.

[9] Nikoofard, Ali, Siavash Kananian, and Ali Fotowat-Ahmady. "Off-Resonance Oscillation, Phase Retention, and Orthogonality Modeling in Quadrature Oscillators." IEEE Transactions on Circuits and Systems I: Regular Papers 63.6 (2016): 883-894.

[8] Fatemi, S.M., Sharifkhani, M., Fotowat-Ahmady, A., "A Unified Solution for Super-Regenerative Systems With Application to Correlator-Based UWB Transceivers," IEEE Transactions on Circuits and Systems I: Regular Papers, vol.62, no.4, pp.1033,1041, April 2015.

[7] V.Mirmoghtadayi, A.Fotowat-Ahmady, A.Zeidabadinejad "A 90nm CMOS IR-UWB BPSK Transmitter with Spectrum Tunability to Improve Peaceful UWB- Narrowband Coexistance", IEEE Transactions on CASI, Volume PP, pp.1-13, Issue 99, January 2014.

[6] M.Marvi, A.Fotowat-Ahmady, S. Kananian, A. Zabetian, "A Low Distortion Self-Oscillating Power Factor Correction Circuit for LowCost Applications", IEEE Transactions on Industrial Electronics, Volume PP, Issue 99, March 2014.

[5] Z.Vahidpoor, A.Fotowat-Ahmady, K.Forooraghi, Z.Atlasbaf "A New Sepectrum Sensing Method Using Output Analysis of the PFD", IEEE Transactions on Circuits and Systems, Volume 60, no.6, pp.366-370, June 2013.

[4] M. Marvi, A.Fotowat-Ahmady, "A Fully ZVS Critical Conduction Mode Boost PFC", IEEE Transactions on Power Electronics ,  Volume 27, pp.1958 - 1965, Issue 4, October 2011.

[3] A.Tabatabaei, A.Fotowat-Ahmady, M.Delurio, S.Navid,"A high slew-rate unity-gain low-voltage buffer with large active/quiescent current ratio"; IEEE Journal of Solid-State Circuits, Volume 33, Issue 1, Jan. 1998, pp.156 - 163.

[2] A.Tabatabei, A.Fotowat-Ahmady, "A High-speed High slew-rate low voltage buffer with dual feedback", Brief paper in the IEEE Journal of Solid-States Circuits, JSSC, Dec. 1997.

[1] Behbahani, A.Fotowat-Ahmady, S.Navid, R.Gaethke, M.Delurio, "A low distortion bipolar mixer for low voltage direct up-conversion and high IF systems"; IEEE Journal of Solid-State Circuits, Volume 32, Issue 9, Sept. 1997 Page(s):1446 - 1450.



IEEE Conference papers:

[24] Karkani, Mohammad Reza Ghaderi, Mahmud Kamarei, and Ali Fotowat Ahmady. "A low-power smart temperature sensor for passive UHF RFID tags and Sensor nets." Telecommunications (IST), 2016 8th International Symposium on. IEEE, 2016.

[23] Khorami, Ata, Mahmood Baraani Dastjerdi, and Ali Fotowat Ahmadi. "A low-power high-speed comparator for analog to digital converters." Circuits and Systems (ISCAS), 2016 IEEE International Symposium on. IEEE, 2016.

[22] Nikoofard, Ali, Siavash Kananian, and Ali Fotowat-Ahmady. "Phase calibration in mutual injection-pulled quadrature oscillators." Circuits and Systems (MWSCAS), 2015 IEEE 58th International Midwest Symposium on. IEEE, 2015.

[21] A. Nikoofard, S. Kananian, A. Fotowat-Ahmady, "Analysis of the Effects of Clock Imperfections in N-Path Filters", Accepcted for presentation at NEWCAS'2015.

[20] A. Nikoofard, S. Kananian, B. Behmanesh, S. M. Atarodi, A. Fotowat-Ahmady, "Analysis of the effects of non-idealities on N-phase high-Q band-pass filters", Accepcted for presentation at ISCAS'2015.

[19] V.Mirmoghtadayi, A.Fotowat-Ahmady, A.Zeidabadinejad, "A New IR-UWB Pulse to Mitigate Coexistence Isues of UWB and Narrowband Systems" 21st Iranian Conference on Electrical Engineering, Mashhad, Iran, 2013.

[18] H.Jalili, A. Fotowat-Ahmady, M.Jenabi, "A 1-mW current reuse quadrature RF front-end for GPS L1 band in 0.18μm CMOS", Electronics, Circuits and Systems (ICECS), 2012 19th IEEE International Conference on, Seville, Seville, 2012.

[17] A.Jalili, A.Fotowat-Ahmadi, "A low-power current reuse CMOS RF front-end for GPS applications", IEEE International Conference on RF and Microwave (RFM), Malaysia, 2012.

[16] M.Tohidian, A.Fotowat-Ahmady, Kamarei, "High-swing class-C VCO", Proceedings of the ESSCIRC (ESSCIRC), Helsinki, Finland, 2011.

[15] H.Hedayati, F.Arvani, Noshad, V.Mirmoghtadayi, A.Fotowat-Ahmady, "Design of an optical UWB pulse leading to an in-band interference tolerant impulse radio UWB transceiver", IEEE International Conference on Ultra-Wideband (ICUWB), Italy, 2011.

[14] V.Mir-Moghtadaei, A.Jalili, A.Fotowat-Ahmady, A.Z.Nezhad and H.Hedayati, "A new UWB pulse generator for narrowband interference avoidance", in Proceedings of the 15th IEEE Mediterranean Electrotechnical Conference - MELECON. Valletta 2010.

[13] K.Ramezanpour, B.H.Khalaj, and A.Fotowat-Ahmady, "Reduction of multipath errors in spread-spectrum code tracking", in IEEE International Conference on Communications. Cape Town 2010

[12] M.Tohidian, A.Fotowat-Ahmady, and M.Kamarei, "A simplified method for phase noise calculation", in Proceedings of the IEEE Custom Integrated Circuits Conference, 2009.

[11] Y.Koolivand, Yavari, Shoaie, A.Fotowat-Ahmady, "Low voltage low power techniques in design of zero IF CMOS receivers", in 2009 16th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2009.

[10] H.Hedayati, A.Fotowat-Ahmady, "A novel tunable UWB pulse design for narrowband interference suppression implemented in BiCMOS technology", in Proceedings - IEEE International Symposium on Circuits and Systems. 2009. Taipei.

[9] V.Roostaie, Najafi, Mohammadi, A.Fotowat-Ahmady, "A low power baseband processor for a dual mode UHF EPC Gen 2 RFID tag", in IEEE International Conference on Design and Technology of Integrated Systems in Nanoscale Era, DTIS'08. 2008. Tozeur

[8] Najafi, V, Jenabi, Mohammadi, Fotowat, "A dual mode EPC Gen 2 UHF RFID transponder in 0.18um CMOS ". in Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008. 2008. St. Julian's

[7] M.Jenabi, N.Riahi, A. Fotowat-Ahmady, "A Programmable Fully-Integrated GPS receiver in 0.18um CMOS with Test Circuits"; Design Automation Conference, 2007. ASP-DAC '07. Asia and South Pacific; Jan. 2007 Page(s):80 - 85, Digital Object Identifier 10.1109/ASPDAC.2007. 357796.

[6] D.Shiri, M.Rajabi, N.Nouri, A.Motieifar, M.Jenabi, A.Parsa, A.Fotowat-Ahmady, "Concurrent dual loop, mixed mode control circuit for 10Gb/s laser diode driver (LDD) IC with 0.13/spl mu/m RF CMOS technology"; Canadian Conference on Electrical and Computer Engineering, 2005. 1-4 May 2005 Page(s):1747 - 1750, Digital Object Identifier 10.1109/CCECE.2005.1557321.

[5] A.Mehrnia, K.Shakeri, A.Eftekhar, F.Soheili, M.Nassiri, A.Fotowat-Ahmady, "An all digital spread spectrum processor featuring multiplier free zero-IF down-conversion, decimation and multiplexed dispreading"; Proceedings of the 12th International Conference on Microelectronics, 2000. ICM2000. 31 Oct.-2 Nov. 2000 Page(s):363-366, Digital Object Identifier 10.1109/ICM.2000.916478

[4] K.Shakeri, H.Hashemi, A.Parsa, A, A.Fotowat-Ahmady, R.Rofougaran, "A 1 volt CMOS 2/4 level FSK digital demodulator for pager applications"; 42nd Midwest Symposium on Circuits and Systems, 1999. Volume 1, 8-11 Aug. 1999 Page(s):219 - 222 vol. 1, Digital Object Identifier 10.1109/MWSCAS.1999.867247

[3] S.Navid, F.Behbahani, A.Fotowat-Ahmady, LLL, "A New Technique for Broadband Quadrature Signal Generation", IEEE Custom Integrated Circuits Conference, CICC' 97, Santa Clara, CA, U.S.A., paper 20.4, May 5-8, 1997.

[2] E.Hejazi-Dinan, A.Fotowat-Ahmady, "On the acquisition-time distribution and optimizing the acquisition system performance in spread-spectrum receivers", IEEE 4th International Symposium on Spread Spectrum Techniques and Applications Proceedings, 1996, Volume 1, 22-25 Sept. 1996 Page(s):146 - 150 vol.1, Digital Object Identifier 10.1109/ISSSTA.1996.563759

[1] C.Marshall, F.Behbahani, W.Birth, A.Fotowat-Ahmady,"2.7 Volt GSM Transceiver ICs with On-Chip Filtering", IEEE International Solid State Circuits Conference (ISSCC95), TA 8.7, pp. 148-149, pp 112-113 & 312, February 1995.



Other Journal papers:

[11] Jomehei, M. G., Sheikhaei, S., Fotowat-Ahmady, A., & Forouzandeh, B. (2018). "A comprehensive survey on UHF RFID rectifiers and investigating the effect of device threshold voltage on the rectifier performance." Analog Integrated Circuits and Signal Processing, 96(1), 21-38.

[10] Zare Fatin, G., Koozehkanani, Z. D., Fotowat‐Ahmady, A., Sobhi, J., & Farrell, R. (2018). "Design of a reconfigurable front‐end for a multistandard receiver for the frequency range of 800 MHz to 2.5 GHz." International Journal of Circuit Theory and Applications.

[9] Nikoofard, A., Kananian, S., Hadizadeh, E., & Fotowat-Ahmady, A. (2016). "A fully analog side-band cancellation technique in radio-frequency transmitters."Microelectronics Journal, 53, 116-126.

[8] Fatin, Gholamreza Zare, Mostafa Savadi Osgooei, and Ali Fotowat-Ahmady. "I/Q mismatch calibration of a transmitter using local quadrature oscillator." Microelectronics Journal 55 (2016): 82-91.

[7] Nikoofard, Ali, Siavash Kananian, and Ali Fotowat-Ahmady."A fully analog calibration technique for phase and gainmismatches in image-reject receivers."AEU-International Journal of Electronics and Communications 69.5(2015): 823-835.

[6] V.Mirmoghtadayi, A.Fotowat-Ahmady, A.Zeidabadinejad, A.Serdijin "A New IR-UWB Pulse for the Compatibility of IEEE 802.11a WLAN and IR-UWB Systems", Journal of Circuits, systems, and Computers, Volume 23, Issue 2, February 2014

[5] Zeynab Vahidpoor, Keyvan Forooraghi, Ali Fotowat-Ahmady, Zahra Atlasbaf, "Coplanar waveguide-FED planar spiral antenna with integrated impedance transformer", Microwave and Optical Technology Letters, USA, 2013.

[4] Z.Vahidpoor, K. Forooraghi, A.Fotowat-Ahmady, Z. Atlasbaf, "Fast adjustable spectrum sensing circuit for cognitive radio applications", International Journal of Circuit Theory and Applications, USA, 2012.

[3] V.Najafi, S.Moahammadi, A.Fotowat-Ahmady, "A dual mode UHF EPC Gen 2 RFID tag in 0.18μm CMOS", Microelectronics (Elsevier), UK, 2009.

[2] Jalali, M.Nabavi, Moravvej, FotowatAhmady, "Low-noise differential transimpedance amplifier structure based on capacitor cross-coupled gm-boosting scheme", Microelectronics Journal, 2008. 39(12): p. 1843-1851.

[1] Jalali, M, Moravvej, Nabavi, FotowatAhmady, "Gm-boosted differential transimpedance amplifier architecture", IEICE Electronics Express, 2007. 4(16): p. 498-503, Express, 2007. 4(16): p. 498-503



Other Conference papers:


[20] Vahidpoor, Z, Forooraghi, K, Atlasbaf, Z, FotowatAhmadi, A, "A New Spectrum Sensing Circuit for Cognitive Radio Applications", Computational Intelligence, Modelling and Simulation (CIMSiM), 2011 Third International Conference on, Langkawi, Malaysia, 2012.

[19] Teymouri, H, Fotowat-Amady, A, Nabavi, A, "A new low phase noise LC-tank CMOS cascode Cross-coupled oscillator", 18th Iranian Conference on Electrical Engineering (ICEE), Tehran, Iran, 2010.

[18] VahidRoostaie, ValiNajafi, SiamakMohammadi, Ali Fotowat-Ahmady, "Design of a low power digital core for a Dual mode UHF EPC RFID tag", EWDTS, Yerevan, Armenia, Sep. 7-10 2007.

[17] Koolivand, Y, Shoaie, Fotowat, Zahabi, Jabbedar, "Nonlinearity analysis in ISD CMOS LNA's Using Volterra series. in Proceedings of the ACM Great Lakes Symposium on VLSI", GLSVLSI. Philadelphia, PA. 2006

[16] S.Irajpour, A. FotowatAhmady, S. Sheikhaei and S. Sheybani, "Signaling Task and Architecture Partitioning in Implementing a Prototype DECT WLL System", International Symposium on Telecommunications, Tehran, Iran, Sep. 2001.

[15] H.Hashemi, A. Parsa, K. Shakeri, A. Fotowat, R. Rofougaran, "A 1V 450mW Fully Integrated Bandpass Filter for Pager Applications", European Conference on Circuit Theory and Design, ECCTD1999.

[14] A.Faghfuri, A.Fotowat, "Performance Evaluator for an ADSL System",1999 Intl. Wireless and Telecom. Symposium, IWTS99, pp 177-180.

[13] H.Daraabi, A.Fotowat, "Design of a low IF receiver based on integrated filters", Proceedings of ICEE 97, May 7-9 1997.

[12] S.Navid, A.Fotowat, F.Behbahani, A.Hajimiri, "Level-locked-loop, a new technique for broad band quadrature signal generation", pp. 235-242, Proceedings of ICEE 95, May 15-18 1995.

[11] B.Goharfar, A.Fotowat, "Nonlinear analysis and prediction of noise figures of cellular phone mixers", Proceedings of ICEE 95, pp. 281-286, May 15-18 1995.

[10] A.Arefpour, A. Fotowat, "Systematic analysis and design of RF synthesizer IC's", Proceedings of ICEE 95, pp. 251-263, May 15-18 1995.

[9] A.Khalili-Azad, A.Fotowat, "Design of a transmitter-receiver IF IC with clock and carrier recovery for cellular telephones", Proceedings of ICEE 95, pp.295-304, May 15-18 1995.

[8] B.Jalai, A.Fotowat, "Parametric device analysis for the design of power transistors", Proceedings of ICEE 95, May 15-18 1995.

[7] A.Fotowat, "RF transmission, and micropower filtering integrated circuits for implantable ultrasonic blood flow telemetry", Stanford University, SEL technical report No. G558-20, June 1991.

[6] A.Wong, A.Fotowat, "Circuits for Wide-band FM demodulation", RF Design, pp. 27-34, Dec 1990.

[5] A.Fotowat,, "System and hardware design considerations for Mobile phone-sets", International Conference of The Society for Automotive Engineering, Detroit, Michigan, Pub. 900248, pp. 1-14, March 1990.

[4] A.Fotowat, S.Navid, L.Engh, "Audio processing for cellular radio or high performance transceivers", Proceedings of the RF Technology Expo, pp. 195-203, Feb 1989.

[3] A.Fotowat, E.Murthi, "Gilbert-type vs. Diode Mixers, Proceedings of the RF Technology Expo.", pp. 409-413, Feb 1989.

[2] Contributor to the following book: W.I. Gay, J.E. Heavner (Editors),"Methods of animal experimentation", Vol 7, Part A, Academic press, 1986. (Sections on Outward telemetry links, pp. 88-90, and Blood flow measurement pp.74-76).

[1] A.Fotowat, et. al, "RF attenuation of an implantable transmitter signal", IEEE Engineering in Medicine and Biology, 6th Conference, CH2058-6: pp. 738-741, Sep 1984.




Books :


[2]"Introduction to Wireless Communication Circuits", Forouhar Farzaneh, Ali Fotowat, Mahmood Kamarei, Ali Nikoofard, Mohammad Elmi, River Publishers, 2018.

[1] Translation to Persian of "RF Microelectronics", Professor Behzad Razavi, Prentice Hall, 2012.


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