Asad A. Abidi - RankMe

112 papers A* 1A 1B 1Misc 1Journal 81Unranked 27

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	The T-Coil Circuit Demystified. IEEE Trans. Circuits Syst. I Regul. Pap. Asad A. Abidi
2023	J	`jnl`	Second-Order Transimpedance Amplifiers in Mixer-First Receivers: Design for Optimum Blocker Tolerance. IEEE Trans. Circuits Syst. I Regul. Pap. Kejian Shi, Asad A. Abidi, Hooman Darabi
2022	J	`jnl`	A Harmonic-Mixing PLL Architecture for Millimeter-Wave Application. IEEE J. Solid State Circuits Dihang Yang, David Murphy, Hooman Darabi, Arya Behzad, Asad A. Abidi, Stephen Au, Sraavan R. Mundlapudi, Kejian Shi, Weiyu Leng
2022	—	`conf`	A Sub-100MHz Reference-Driven 25-to-28GHz Fractional-N PLL with -250dB FoM. ISSCC Dihang Yang, David Murphy, Hooman Darabi, Arya Behzad, Asad A. Abidi, Stephen Au, Sraavan R. Mundlapudi, Kejian Shi, Weiyu Leng
2022	J	`jnl`	Design and Analysis of an Electrical Balance Duplexer With Independent and Concurrent Dual-Band TX-RX Isolation. IEEE J. Solid State Circuits Kejian Shi, Hooman Darabi, Asad A. Abidi
2022	J	`jnl`	Envelope Tracking Supply Modulator with Trellis-Search-Based Switching and 160-MHz Capability. IEEE J. Solid State Circuits Weiyu Leng, Asad A. Abidi, Sraavan R. Mundlapudi, Hooman Darabi, Debopriyo Chowdhury, Ali Afsahi, Sida Li
2021	—	`conf`	A Tutorial on Systematic Design of CMOS A/D Converters: Illustrated by a 10 b, 500 MS/s SAR ADC with 2 GHz RBW. ESSCIRC Tetsuya Iizuka, Hao Xu, Asad A. Abidi
2021	J	`jnl`	Approximate Equivalent Circuits to Understand Tradeoffs in Geometry of On-Chip Inductors. IEEE Trans. Circuits Syst. I Regul. Pap. Weiyu Leng, Asad A. Abidi
2021	—	`conf`	Envelope-Tracking Supply Modulator with Trellis Search-Based Switching and 160MHz Capability. CICC Weiyu Leng, Asad A. Abidi, Sraavan R. Mundlapudi, Hooman Darabi, Debopriyo Chowdhury, Ali Afsahi, Sida Li
2020	J	`jnl`	Analysis and Design of a Robust, Low-Power, Inductively Coupled LSK Data Link. IEEE J. Solid State Circuits Alireza Yousefi, Asad A. Abidi, Dejan Markovic
2019	—	`conf`	A Calibration-Free Triple-Loop Bang-Bang PLL Achieving 131fsrms Jitter and-70dBc Fractional Spurs. ISSCC Dihang Yang, Asad A. Abidi, Hooman Darabi, Hao Xu, David Murphy, Hao Wu, Zhaowen Wang
2019	J	`jnl`	Analysis and Design of Regenerative Comparators for Low Offset and Noise. IEEE Trans. Circuits Syst. I Regul. Pap. Hao Xu, Asad A. Abidi
2019	J	`jnl`	Simultaneous Transmission of Up To 94-mW Self-Regulated Wireless Power and Up To 5-Mb/s Reverse Data Over a Single Pair of Coils. IEEE J. Solid State Circuits Jiacheng Pan, Asad A. Abidi, Wenlong Jiang, Dejan Markovic
2018	J	`jnl`	A Unified Analysis of the Signal Transfer Characteristics of a Single-Path FET-R-C Circuit. IEICE Trans. Electron. Tetsuya Iizuka, Asad A. Abidi
2018	J	`jnl`	Comprehensive Analysis of Distortion in the Passive FET Sample-and-Hold Circuit. IEEE Trans. Circuits Syst. I Regul. Pap. Tetsuya Iizuka, Takaaki Ito, Asad A. Abidi
2018	—	`conf`	Self-Regulated Wireless Power and Simultaneous 5MB/S Reverse Data over One Pair of Coils. VLSI Circuits Jiacheng Pan, Asad A. Abidi, Wenlong Jiang, Dejan Rozgic, Dejan Markovic
2017	—	`conf`	22.7 An inductively-coupled wireless power-transfer system that is immune to distance and load variations. ISSCC Jiacheng Pan, Asad A. Abidi, Dejan Rozgic, Hariprasad Chandrakumar, Dejan Markovic
2017	J	`jnl`	Design Methodology for Phase-Locked Loops Using Binary (Bang-Bang) Phase Detectors. IEEE Trans. Circuits Syst. I Regul. Pap. Hao Xu, Asad A. Abidi
2017	J	`jnl`	Processes of AM-PM Distortion in Large-Signal Single-FET Amplifiers. IEEE Trans. Circuits Syst. I Regul. Pap. Soheil Golara, Shervin Moloudi, Asad A. Abidi
2016	J	`jnl`	FET-R-C Circuits: A Unified Treatment - Part I: Signal Transfer Characteristics of a Single-Path. IEEE Trans. Circuits Syst. I Regul. Pap. Tetsuya Iizuka, Asad A. Abidi
2016	J	`jnl`	FET-R-C Circuits: A Unified Treatment - Part II: Extension to Multi-Paths, Noise Figure, and Driving-Point Impedance. IEEE Trans. Circuits Syst. I Regul. Pap. Tetsuya Iizuka, Asad A. Abidi
2014	J	`jnl`	An LTV Analysis of the Frequency Translational Noise-Cancelling Receiver. IEEE Trans. Circuits Syst. I Regul. Pap. David Murphy, Ahmad Mirzaei, Hooman Darabi, Mau-Chung Frank Chang, Asad A. Abidi
2014	—	`conf`	Understanding the regenerative comparator circuit. CICC Asad A. Abidi, Hao Xu
2013	J	`jnl`	A Multiband RF Antenna Duplexer on CMOS: Design and Performance. IEEE J. Solid State Circuits Mohyee Mikhemar, Hooman Darabi, Asad A. Abidi
2013	J	`jnl`	The Outphasing RF Power Amplifier: A Comprehensive Analysis and a Class-B CMOS Realization. IEEE J. Solid State Circuits Shervin Moloudi, Asad A. Abidi
2012	J	`jnl`	A Blocker-Tolerant, Noise-Cancelling Receiver Suitable for Wideband Wireless Applications. IEEE J. Solid State Circuits David Murphy, Hooman Darabi, Asad A. Abidi, Amr Amin Hafez, Ahmad Mirzaei, Mohyee Mikhemar, Mau-Chung Frank Chang
2012	—	`conf`	A blocker-tolerant wideband noise-cancelling receiver with a 2dB noise figure. ISSCC David Murphy, Amr Hafez, Ahmad Mirzaei, Mohyee Mikhemar, Hooman Darabi, Mau-Chung Frank Chang, Asad A. Abidi
2011	J	`jnl`	A Low-Power GSM/EDGE/WCDMA Polar Transmitter in 65-nm CMOS. IEEE J. Solid State Circuits Michael Youssef, Alireza Zolfaghari, Behnam Mohammadi, Hooman Darabi, Asad A. Abidi
2011	—	`conf`	A low-power wideband polar transmitter for 3G applications. ISSCC Michael Youssef, Alireza Zolfaghari, Hooman Darabi, Asad A. Abidi
2011	—	`conf`	Beyond the horizon: The next 10x reduction in power - Challenges and solutions. ISSCC Jan M. Rabaey, Hugo De Man, Mark Horowitz, Takayasu Sakurai, Jack Sun, Dan Dobberpuhl, Kiyoo Itoh, Philippe Magarshack, Asad A. Abidi, Hermann Eul
2010	J	`jnl`	Noise in Current-Commutating Passive FET Mixers. IEEE Trans. Circuits Syst. I Regul. Pap. Saeed Chehrazi, Ahmad Mirzaei, Asad A. Abidi
2010	J	`jnl`	Phase Noise in IEEE Trans. Circuits Syst. I Regul. Pap. David Murphy, Jacob J. Rael, Asad A. Abidi
2010	J	`jnl`	The Spectrum of a Noisy Free-Running Oscillator Explained by Random Frequency Pulling. IEEE Trans. Circuits Syst. I Regul. Pap. Ahmad Mirzaei, Asad A. Abidi
2009	J	`jnl`	A Low-Noise Wideband Digital Phase-Locked Loop Based on a Coarse-Fine Time-to-Digital Converter With Subpicosecond Resolution. IEEE J. Solid State Circuits Minjae Lee, Mohammad E. Heidari, Asad A. Abidi
2009	J	`jnl`	A Second-Order Antialiasing Prefilter for a Software-Defined Radio Receiver. IEEE Trans. Circuits Syst. I Regul. Pap. Ahmad Mirzaei, Saeed Chehrazi, Rahim Bagheri, Asad A. Abidi
2009	—	`conf`	A tunable integrated duplexer with 50dB isolation in 40nm CMOS. ISSCC Mohyee Mikhemar, Hooman Darabi, Asad A. Abidi
2009	J	`jnl`	All-Digital Outphasing Modulator for a Software-Defined Transmitter. IEEE J. Solid State Circuits Mohammad E. Heidari, Minjae Lee, Asad A. Abidi
2009	J	`jnl`	Second-Order Intermodulation in Current-Commutating Passive FET Mixers. IEEE Trans. Circuits Syst. I Regul. Pap. Saeed Chehrazi, Ahmad Mirzaei, Asad A. Abidi
2008	J	`jnl`	A 9 b, 1.25 ps Resolution Coarse-Fine Time-to-Digital Converter in 90 nm CMOS that Amplifies a Time Residue. IEEE J. Solid State Circuits Minjae Lee, Asad A. Abidi
2008	—	`conf`	An Outphasing Power Amplifier for a Software-Defined Radio Transmitter. ISSCC Shervin Moloudi, Koji Takinami, Michael Youssef, Mohyee Mikhemar, Asad A. Abidi
2008	J	`jnl`	Analysis of First-Order Anti-Aliasing Integration Sampler. IEEE Trans. Circuits Syst. I Regul. Pap. Ahmad Mirzaei, Saeed Chehrazi, Rahim Bagheri, Asad A. Abidi
2008	J	`jnl`	Multi-Phase Injection Widens Lock Range of Ring-Oscillator-Based Frequency Dividers. IEEE J. Solid State Circuits Ahmad Mirzaei, Mohammad E. Heidari, Rahim Bagheri, Asad A. Abidi
2007	—	`conf`	A 10b 160MS/s 84mW 1V Subranging ADC in 90nm CMOS. ISSCC Dan J. Huber, Rodney J. Chandler, Asad A. Abidi
2007	Misc	`conf`	Architecture and Clock Programmable Baseband of an 800 MHz-6 GHz Software-Defined Wireless Receiver. VLSI Design Rahim Bagheri, Ahmad Mirzaei, Saeed Chehrazi, Asad A. Abidi
2007	J	`jnl`	The Path to the Software-Defined Radio Receiver. IEEE J. Solid State Circuits Asad A. Abidi
2007	J	`jnl`	The Quadrature LC Oscillator: A Complete Portrait Based on Injection Locking. IEEE J. Solid State Circuits Ahmad Mirzaei, Mohammad E. Heidari, Rahim Bagheri, Saeed Chehrazi, Asad A. Abidi
2006	J	`jnl`	An 800-MHz-6-GHz Software-Defined Wireless Receiver in 90-nm CMOS. IEEE J. Solid State Circuits Rahim Bagheri, Ahmad Mirzaei, Saeed Chehrazi, Mohammad E. Heidari, Minjae Lee, Mohyee Mikhemar, Wai K. Tang, Asad A. Abidi
2006	—	`conf`	An 800MHz to 5GHz Software-Defined Radio Receiver in 90nm CMOS. ISSCC Rahim Bagheri, Ahmad Mirzaei, Saeed Chehrazi, Mohammad E. Heidari, Minjae Lee, Mohyee Mikhemar, Wai K. Tang, Asad A. Abidi
2006	—	`conf`	Analysis of Oscillators Locked by Large Injection Signals: Generalized Adler's Equation and Geometrical Interpretation. CICC Ahmad Mirzaei, Mohammad E. Heidari, Asad A. Abidi
2006	J	`jnl`	Software-defined radio receiver: dream to reality. IEEE Commun. Mag. Rahim Bagheri, Ahmad Mirzaei, Mohammad E. Heidari, Saeed Chehrazi, Minjae Lee, Mohyee Mikhemar, Wai K. Tang, Asad A. Abidi
2005	J	`jnl`	A 1 GHz CMOS analog front-end for a generalized PRML read channel. IEEE J. Solid State Circuits Daniel Sun, Andrea Xotta, Asad A. Abidi
2005	J	`jnl`	A 3.1- to 8.2-GHz zero-IF receiver and direct frequency synthesizer in 0.18-μm SiGe BiCMOS for mode-2 MB-OFDM UWB communication. IEEE J. Solid State Circuits Aly Ismail, Asad A. Abidi
2005	—	`conf`	A 6.5 GHz wideband CMOS low noise amplifier for multi-band use. CICC Saeed Chehrazi, Ahmad Mirzaei, Rahim Bagheri, Asad A. Abidi
2005	—	`conf`	A second-order anti-aliasing prefilter for an SDR receiver. CICC Ahmad Mirzaei, Rahim Bagheri, Saeed Chehrazi, Asad A. Abidi
2005	—	`conf`	Analog behavioral modeling: fantasy, fad, or foundation for the future? CICC Henry Chang, Colin McAndrew, Asad A. Abidi, Gayathri Bhagavatheeswaran, Jim Holmes, Kenneth S. Kundert, H. Alan Mantooth, Tony Strachan
2005	—	`conf`	Phase noise in inverter-based & differential CMOS ring oscillators. CICC Asad A. Abidi, Sohrab Samadian
2004	J	`jnl`	A 3-10-GHz low-noise amplifier with wideband LC-ladder matching network. IEEE J. Solid State Circuits Aly Ismail, Asad A. Abidi
2004	J	`jnl`	In Memoriam. IEEE Trans. Circuits Syst. I Regul. Pap. Alan N. Willson Jr., Gabor C. Temes, Asad A. Abidi
2004	—	`conf`	Noise in passive FET mixers: a simple physical model. CICC Saeed Chehrazi, Rahim Bagheri, Asad A. Abidi
2004	J	`jnl`	RF CMOS comes of age. IEEE J. Solid State Circuits Asad A. Abidi
2004	J	`jnl`	Signal folding in A/D converters. IEEE Trans. Circuits Syst. I Regul. Pap. Hui Pan, Asad A. Abidi
2004	J	`jnl`	Spectral spurs due to quantization in Nyquist ADCs. IEEE Trans. Circuits Syst. I Regul. Pap. Hui Pan, Asad A. Abidi
2003	J	`jnl`	A 17-mW transmitter and frequency synthesizer for 900-MHz GSM fully integrated in 0.35-μm CMOS. IEEE J. Solid State Circuits Emad Hegazi, Asad A. Abidi
2003	J	`jnl`	A merged CMOS LNA and mixer for a WCDMA receiver. IEEE J. Solid State Circuits Henrik Sjöland, Ali Karimi-Sanjaani, Asad A. Abidi
2003	J	`jnl`	Demodulators for a zero-IF Bluetooth receiver. IEEE J. Solid State Circuits Sohrab Samadian, Ryoji Hayashi, Asad A. Abidi
2003	—	`conf`	Low power demodulators with phase quantization for a zero-IF Bluetooth receiver. ISCAS (1) Sohrab Samadian, Ryoji Hayashi, Asad A. Abidi
2003	J	`jnl`	Spatial filtering in flash A/D converters. IEEE Trans. Circuits Syst. II Express Briefs Hui Pan, Asad A. Abidi
2003	J	`jnl`	Varactor characteristics, oscillator tuning curves, and AM-FM conversion. IEEE J. Solid State Circuits Emad Hegazi, Asad A. Abidi
2002	J	`jnl`	Fully integrated 2.2-mW CMOS front end for a 900-MHz wireless receiver. IEEE J. Solid State Circuits Shahram Mahdavi, Asad A. Abidi
2001	J	`jnl`	A 300-MHz fixed-delay tree search-DFE analog CMOS disk-drive read channel. IEEE J. Solid State Circuits Derrick Chunkai Wei, Daniel Qicheng Sun, Asad A. Abidi
2001	J	`jnl`	A 6-b 1.3-Gsample/s A/D converter in 0.35-μm CMOS. IEEE J. Solid State Circuits Michael Choi, Asad A. Abidi
2001	J	`jnl`	A 900-MHz dual-conversion low-IF GSM receiver in 0.35-μm CMOS. IEEE J. Solid State Circuits Shahrzad Tadjpour, Ellie Cijvat, Emad Hegazi, Asad A. Abidi
2001	J	`jnl`	A filtering technique to lower LC oscillator phase noise. IEEE J. Solid State Circuits Emad Hegazi, Henrik Sjöland, Asad A. Abidi
2001	J	`jnl`	Adaptive analog IF signal processor for a wide-band CMOS wireless receiver. IEEE J. Solid State Circuits Farbod Behbahani, Ali Karimi-Sanjaani, Wee-Guan Tan, Andreas Roithmeier, John C. Leete, Koichi Hoshino, Asad A. Abidi
2001	—	`conf`	Behavioral modeling of analog and mixed signal IC's: case studies of analog circuit simulation beyond SPICE. CICC Asad A. Abidi
2001	J	`jnl`	CMOS mixers and polyphase filters for large image rejection. IEEE J. Solid State Circuits Farbod Behbahani, Yoji Kishigami, John C. Leete, Asad A. Abidi
2000	J	`jnl`	A 2.4-GHz low-IF receiver for wideband WLAN in 6-μm CMOS-architecture and front-end. IEEE J. Solid State Circuits Farbod Behbahani, John C. Leete, Yoji Kishigami, Andreas Roithmeier, Koichi Hoshino, Asad A. Abidi
2000	J	`jnl`	A 3.3-V 12-b 50-MS/s A/D converter in 0.6-μm CMOS with over 80-dB SFDR. IEEE J. Solid State Circuits Hui Pan, Masahiro Segami, Michael Choi, Jing Cao, Asad A. Abidi
2000	J	`jnl`	A 4.5-mW 900-MHz CMOS receiver for wireless paging. IEEE J. Solid State Circuits Hooman Darabi, Asad A. Abidi
2000	J	`jnl`	A broad-band tunable CMOS channel-select filter for a low-IF wireless receiver. IEEE J. Solid State Circuits Farbod Behbahani, Weeguan Tan, Ali Karimi-Sanjaani, Andreas Roithmeier, Asad A. Abidi
2000	J	`jnl`	Noise in RF-CMOS mixers: a simple physical model. IEEE J. Solid State Circuits Hooman Darabi, Asad A. Abidi
2000	—	`conf`	Physical processes of phase noise in differential LC oscillators. CICC Jacob J. Rael, Asad A. Abidi
2000	J	`jnl`	Power-conscious design of wireless circuits and systems. Proc. IEEE Asad A. Abidi, Gregory J. Pottie, William J. Kaiser
1999	—	`conf`	A wideband tunable CMOS channel-select filter for a low-IF wireless receiver. CICC Farbod Behbahani, Weeguan Tan, Ali Karimi-Sanjaani, Andreas Roithmeier, Asad A. Abidi
1999	—	`conf`	An ultralow power single-chip CMOS 900 MHz receiver for wireless paging. CICC Hooman Darabi, Asad A. Abidi
1999	J	`jnl`	CMOS wireless transceivers: the new wave. IEEE Commun. Mag. Asad A. Abidi
1999	J	`jnl`	De-embedding the noise figure of differential amplifiers. IEEE J. Solid State Circuits Asad A. Abidi, John C. Leete
1999	A	`conf`	Low power RF integrated circuits: principles and practice. ISLPED Asad A. Abidi, Hooman Darabi
1998	J	`jnl`	A single-chip 900-MHz spread-spectrum wireless transceiver in 1-μm CMOS. I. Architecture and transmitter design. IEEE J. Solid State Circuits Ahmadreza Rofougaran, Glenn Chang, Jacob J. Rael, James Y.-C. Chang, Maryam Rofougaran, Paul J. Chang, Masoud Djafari, M.-K. Ku, Edward W. Roth, Asad A. Abidi, Henry Samueli
1998	J	`jnl`	A single-chip 900-MHz spread-spectrum wireless transceiver in 1-μm CMOS. II. Receiver design. IEEE J. Solid State Circuits Ahmadreza Rofougaran, Glenn Chang, Jacob J. Rael, James Y.-C. Chang, Maryam Rofougaran, Paul J. Chang, Masoud Djafari, M.-K. Ku, Edward W. Roth, Asad A. Abidi, Henry Samueli
1998	—	`conf`	An analog EPR4 read channel with an FDTS detector. ICC Derrick C. Wei, Daniel Q. Sun, Asad A. Abidi
1998	A*	`conf`	Design Methodology Used in a Single-Chip CMOS 900 MHz Spread-Spectrum Wireless Transceiver. DAC Jacob J. Rael, Ahmadreza Rofougaran, Asad A. Abidi
1998	—	`conf`	RF-CMOS oscillators with switched tuning. CICC A. Kral, Farbod Behbahani, Asad A. Abidi
1997	J	`jnl`	A 10-b, 100-MS/s CMOS A/D converter. IEEE J. Solid State Circuits Kwang Young Kim, Naoya Kusayanagi, Asad A. Abidi
1997	J	`jnl`	A CMOS channel-select filter for a direct-conversion wireless receiver. IEEE J. Solid State Circuits Paul J. Chang, Ahmadreza Rofougaran, Asad A. Abidi
1996	J	`jnl`	A 1 GHz CMOS RF front-end IC for a direct-conversion wireless receiver. IEEE J. Solid State Circuits Ahmadreza Rofougaran, James Y.-C. Chang, Maryam Rofougaran, Asad A. Abidi
1996	J	`jnl`	A 160-MHz analog front-end IC for EPR-IV PRML magnetic storage read channels. IEEE J. Solid State Circuits Patrick Pai, Anthony Brewster, Asad A. Abidi
1995	J	`jnl`	Direct-conversion radio transceivers for digital communications. IEEE J. Solid State Circuits Asad A. Abidi
1995	J	`jnl`	Low-power radio-frequency ICs for portable communications. Proc. IEEE Asad A. Abidi
1994	J	`jnl`	A 40-mW 55 Mb/s CMOS equalizer for use in magnetic storage read channels. IEEE J. Solid State Circuits Patrick Pai, Asad A. Abidi
1993	J	`jnl`	A 10-b, 75-MHz two-stage pipelined bipolar A/D converter. IEEE J. Solid State Circuits William T. Colleran, Asad A. Abidi
1993	B	`conf`	A Low Power Analog CMOS Vector Quantizer. Data Compression Conference G. T. Tuttle, S. Fallahi, Asad A. Abidi
1993	J	`jnl`	A table lookup FET model for accurate analog circuit simulation. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. Ahmadreza Rofougaran, Asad A. Abidi
1992	J	`jnl`	A 50-MHz CMOS variable gain amplifier for magnetic data storage systems. IEEE J. Solid State Circuits Ramon A. Gomez, Asad A. Abidi
1992	J	`jnl`	A Simple Continuous-Time Equalizer for Use in Magnetic Storage Read Channels. IEEE J. Sel. Areas Commun. Patrick Pai, Asad A. Abidi, Ramon A. Gomez
1992	J	`jnl`	A wide-band CMOS read amplifier for magnetic data storage systems. IEEE J. Solid State Circuits Tzu-Wang Pan, Asad A. Abidi
1992	J	`jnl`	NMOS IC's for clock and data regeneration in gigabit-per-second optical-fiber receivers. IEEE J. Solid State Circuits S. Khursheed Enam, Asad A. Abidi
1991	J	`jnl`	An active resistor network for Gaussian filtering of images. IEEE J. Solid State Circuits Haruo Kobayashi, Joseph L. White, Asad A. Abidi
1990	J	`jnl`	A 300-MHz CMOS voltage-controlled ring oscillator. IEEE J. Solid State Circuits S. Khursheed Enam, Asad A. Abidi
1990	J	`jnl`	CMOS active filter design at very high frequencies. IEEE J. Solid State Circuits Yun-Ti Wang, Asad A. Abidi
1989	J	`jnl`	A 50 dB variable gain amplifier using parasitic bipolar transistors in CMOS. IEEE J. Solid State Circuits Tzu-Wang Pan, Asad A. Abidi
1988	J	`jnl`	On the operation of cascode gain stages. IEEE J. Solid State Circuits Asad A. Abidi