Designing compact phase shifters with a resistorless quadrature signal generator.

Concepción Aldea Concepción Aldea Chagoyen https://orcid.org/0000-0003-2874-6368 Uxua Esteban-Eraso Carlos Sánchez-Azqueta Francisco Aznar Concepción Aldea Santiago Celma Designing compact phase shifters with a resistorless quadrature signal generator. 1-4 2025 SMACD https://doi.org/10.1109/SMACD65553.2025.11091886 conf/smacd/2025 db/conf/smacd/smacd2025.html#EstebanErasoSAAC25 streams/conf/smacd Uxua Esteban-Eraso Carlos Sánchez-Azqueta Francisco Aznar Concepción Aldea Santiago Celma Compensating the Load Effect in Quadrature All-Pass Filters. 1-4 2024 VLSI-SoC https://doi.org/10.1109/VLSI-SoC62099.2024.10767801 conf/vlsi/2024 db/conf/vlsi/vlsisoc2024.html#Esteban-ErasoSA24

Miguel Garcia-Bosque Adrián Pérez-Resa 0002 Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma Chaos-Based Bitwise Dynamical Pseudorandom Number Generator on FPGA. 2024 abs/2401.15035 CoRR https://doi.org/10.48550/arXiv.2401.15035 db/journals/corr/corr2401.html#abs-2401-15035

Uxua Esteban-Eraso Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma A CMOS 4-bit Digitally Programmable Phase Shifter for the K-band. 1-2 2022 VLSI-SoC https://doi.org/10.1109/VLSI-SoC54400.2022.9939594 conf/vlsi/2022 db/conf/vlsi/vlsisoc2022.html#ErasoSAC22 Guillermo Royo Antonio D. Martínez-Pérez Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma Noise Reduction Technique using Multiple Photodiodes in Optical Receivers for POF Communications. 1-4 2021 LASCAS https://doi.org/10.1109/LASCAS51355.2021.9459130 conf/lascas/2021 db/conf/lascas/lascas2021.html#RoyoMSAC21

Guillermo Royo Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma High-Sensitivity Large-Area Photodiode Read-Out Using a Divide-and-Conquer Technique. 6316 2020 20 Sensors 21 https://doi.org/10.3390/s20216316 https://www.wikidata.org/entity/Q101472451 db/journals/sensors/sensors20.html#RoyoSAC20

Miguel Garcia-Bosque Adrián Pérez-Resa 0002 Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma Chaos-Based Bitwise Dynamical Pseudorandom Number Generator On FPGA. 291-293 2019 68 IEEE Trans. Instrum. Meas. 1 https://doi.org/10.1109/TIM.2018.2877859 https://www.wikidata.org/entity/Q128990984 db/journals/tim/tim68.html#Garcia-BosquePS19

Carlos Sánchez-Azqueta Santiago Celma Concepción Aldea Cecilia Gimeno E. Cascarosa ICT-Based Didactic Strategies to Build Knowledge Models in Electronics in Higher Education. 1-5 2019 ISCAS https://doi.org/10.1109/ISCAS.2019.8702527 conf/iscas/2019 db/conf/iscas/iscas2019.html#Sanchez-Azqueta19 Miguel Garcia-Bosque Guillermo Díez-Señorans Adrián Pérez-Resa 0002 Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma A New Lightweight CSPRNG Implemented in a 0.18μm CMOS Technology. 221-224 2019 PRIME https://doi.org/10.1109/PRIME.2019.8787798 conf/prime/2019 db/conf/prime/prime2019.html#Garcia-BosqueDP19

Guillermo Royo Carlos Sánchez-Azqueta Antonio D. Martínez-Pérez Concepción Aldea Santiago Celma Fully-differential transimpedance amplifier for reliable wireless communications. 25-28 2018 83 Microelectron. Reliab. https://doi.org/10.1016/j.microrel.2018.02.007 db/journals/mr/mr83.html#RoyoSMAC18

Carlos Sánchez-Azqueta Santiago Celma Concepción Aldea Cecilia Gimeno E. Cascarosa Using hyperdata in a laboratory of electronics QR codes applied to experimental learning. 467-471 2018 EDUCON https://doi.org/10.1109/EDUCON.2018.8363267 conf/educon/2018 db/conf/educon/educon2018.html#Sanchez-Azqueta18 Miguel Garcia-Bosque Adrián Pérez-Resa 0002 Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma A New Technique For Improving the Security of Chaos Based Cryptosystems. 1-5 2018 ISCAS https://doi.org/10.1109/ISCAS.2018.8351195 conf/iscas/2018 db/conf/iscas/iscas2018.html#Garcia-BosquePS18 Guillermo Royo Antonio D. Martínez-Pérez Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma Low-EVM CMOS Transimpedance Amplifier for Intermediate Frequency over Fiber. 1-4 2018 ISCAS https://doi.org/10.1109/ISCAS.2018.8351471 conf/iscas/2018 db/conf/iscas/iscas2018.html#RoyoMSAC18 Guillermo Royo Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma Cecilia Gimeno Highly-linear transimpedance amplifier for remote antenna units. 1-4 2018 LASCAS https://doi.org/10.1109/LASCAS.2018.8399950 conf/lascas/2018 db/conf/lascas/lascas2018.html#RoyoSACG18

Carlos Sánchez-Azqueta Cecilia Gimeno Javier Aguirre Concepción Aldea Santiago Celma A methodology to design continuous-time adaptive equalizers. 1203-1217 2017 45 Int. J. Circuit Theory Appl. 9 https://doi.org/10.1002/cta.2271 db/journals/ijcta/ijcta45.html#Sanchez-Azqueta17

Cecilia Gimeno Erick Guerrero Carlos Sánchez-Azqueta Javier Aguirre Concepción Aldea Santiago Celma Design of a CMOS multi-rate adaptive continuous-time equalizer based on power spectrum estimation. 2226-2242 2017 45 Int. J. Circuit Theory Appl. 12 https://doi.org/10.1002/cta.2362 db/journals/ijcta/ijcta45.html#GimenoGSAAC17

Guillermo Royo Carlos Sánchez-Azqueta Cecilia Gimeno Concepción Aldea Santiago Celma Programmable Low-Power Low-Noise Capacitance to Voltage Converter for MEMS Accelerometers. 67 2017 17 Sensors 1 https://doi.org/10.3390/s17010067 https://www.wikidata.org/entity/Q42323086 db/journals/sensors/sensors17.html#RoyoSGAC17

Guillermo Royo Miguel Garcia-Bosque Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma Cecilia Gimeno Transimpedance amplifier with programmable gain and bandwidth for capacitive MEMS accelerometers. 1-5 2017 I2MTC https://doi.org/10.1109/I2MTC.2017.7969937 conf/i2mtc/2017 db/conf/i2mtc/i2mtc2017.html#RoyoGSACG17

Carlos Sánchez-Azqueta Javier Aguirre Cecilia Gimeno Concepción Aldea Santiago Celma High-resolution wide-band LC-VCO for reliable operation in phase-locked loops. 251-255 2016 63 Microelectron. Reliab. https://doi.org/10.1016/j.microrel.2016.06.018 db/journals/mr/mr63.html#Sanchez-Azqueta16

Carlos Sánchez-Azqueta Cecilia Gimeno Santiago Celma Concepción Aldea Using the Wiimote to Learn MEMS in a Physics Degree Program. 169-174 2016 59 IEEE Trans. Educ. 3 https://doi.org/10.1109/TE.2015.2472639 db/journals/te/te59.html#Sanchez-Azqueta16

Carlos Sánchez-Azqueta Cecilia Gimeno Concepción Aldea Santiago Celma A phase-space model to describe bang-bang phase detectors. 829-839 2015 43 Int. J. Circuit Theory Appl. 7 https://doi.org/10.1002/cta.1973 db/journals/ijcta/ijcta43.html#Sanchez-Azqueta15

Cecilia Gimeno Erick Guerrero Carlos Sánchez-Azqueta Guillermo Royo Concepción Aldea Santiago Celma Continuous-Time Linear Equalizer for Multigigabit Transmission Through SI-POF in Factory Area Networks. 6530-6532 2015 62 IEEE Trans. Ind. Electron. 10 https://doi.org/10.1109/TIE.2015.2427123 db/journals/tie/tie62.html#GimenoGSRAC15

Cecilia Gimeno Carlos Sánchez-Azqueta Erick Guerrero Javier Aguirre Concepción Aldea Santiago Celma A 2.5-Gb/s multi-rate continuous-time adaptive equalizer for short reach optical links. 44-47 2015 ESSCIRC https://doi.org/10.1109/ESSCIRC.2015.7313824 conf/esscirc/2015 db/conf/esscirc/esscirc2015.html#GimenoSGAAC15 Cecilia Gimeno Erick Guerrero Carlos Sánchez-Azqueta Guillermo Royo Concepción Aldea Santiago Celma 1-V continuous-time linear equalizer for up to 2 Gb/s over 50-m SI-POF. 1818-1821 2015 ISCAS https://doi.org/10.1109/ISCAS.2015.7169009 conf/iscas/2015 db/conf/iscas/iscas2015.html#GimenoGSRAC15 Carlos Sánchez-Azqueta Javier Aguirre Cecilia Gimeno Concepción Aldea Santiago Celma A 1.7-GHz wide-band CMOS LC-VCO with 7-Bit coarse control. 3060-3063 2015 ISCAS https://doi.org/10.1109/ISCAS.2015.7169333 conf/iscas/2015 db/conf/iscas/iscas2015.html#Sanchez-Azqueta15

Cecilia Gimeno Concepción Aldea Francisco Aznar Carlos Sánchez-Azqueta Santiago Celma 1-V continuous-time equalizers for multi-gigabit short-haul optical fiber communications. 146-164 2014 42 Int. J. Circuit Theory Appl. 2 https://doi.org/10.1002/cta.1845 db/journals/ijcta/ijcta42.html#GimenoAASC14

Cecilia Gimeno Erick Guerrero Santiago Celma Concepción Aldea Reliable CMOS adaptive equalizer for short-haul optical networks. 110-118 2014 54 Microelectron. Reliab. 1 https://doi.org/10.1016/j.microrel.2013.07.041 db/journals/mr/mr54.html#GimenoGCA14

Carlos Sánchez-Azqueta Cecilia Gimeno Erick Guerrero Concepción Aldea Santiago Celma A Low-Power CMOS Receiver for 1.25 Gb/s Over 1- mm SI-POF Links. 4246-4254 2014 61 IEEE Trans. Ind. Electron. 8 https://doi.org/10.1109/TIE.2013.2288198 db/journals/tie/tie61.html#Sanchez-AzquetaGGAC14

Cecilia Gimeno Erick Guerrero Carlos Sánchez-Azqueta Concepción Aldea Santiago Celma A 1-V CMOS double loop continuous-time adaptive equalizer for short-haul optical networks. 1-7 2014 conf/IEEEssd/2014 SSD https://doi.org/10.1109/SSD.2014.6808861 db/conf/IEEEssd/ssd2014.html#GimenoGSAC14 Carlos Sánchez-Azqueta Cecilia Gimeno Erick Guerrero Concepción Aldea Santiago Celma Design considerations for loop filters in continuous-time adaptive equalizers. 1-7 2014 conf/IEEEssd/2014 SSD https://doi.org/10.1109/SSD.2014.6808871 db/conf/IEEEssd/ssd2014.html#Sanchez-Azqueta14 Cecilia Gimeno Erick Guerrero Carlos Sánchez-Azqueta Concepción Aldea Cristina Azcona Santiago Celma A double loop continuous-time adaptive equalizer. 317-320 2014 ISCAS https://doi.org/10.1109/ISCAS.2014.6865129 conf/iscas/2014 db/conf/iscas/iscas2014.html#GimenoGSAAC14

Cecilia Gimeno Concepción Aldea Santiago Celma Francisco Aznar Low-voltage low-power CMOS receiver front-end for gigabit short-reach optical communications. 1175-1187 2013 41 Int. J. Circuit Theory Appl. 11 https://doi.org/10.1002/cta.1819 db/journals/ijcta/ijcta41.html#GimenoACA13

Cecilia Gimeno Concepción Aldea Santiago Celma Francisco Aznar Multi-gigabit analog equalizers for plastic opticalfibers. 870-879 2013 44 Microelectron. J. 10 https://doi.org/10.1016/j.mejo.2013.01.005 db/journals/mj/mj44.html#GimenoACA13

Carlos Sánchez-Azqueta Cecilia Gimeno Concepción Aldea Santiago Celma New Multilevel Bang-Bang Phase Detector. 3384-3386 2013 62 IEEE Trans. Instrum. Meas. 12 https://doi.org/10.1109/TIM.2013.2273611 db/journals/tim/tim62.html#Sanchez-Azqueta13

Cecilia Gimeno Carlos Sánchez-Azqueta Santiago Celma Concepción Aldea C. Cahill A 1.25 Gb/s fully integrated optical receiver for SI-POF applications. 1-4 2013 ECCTD https://doi.org/10.1109/ECCTD.2013.6662273 conf/ecctd/2013 db/conf/ecctd/ecctd2013.html#GimenoSCAC13 Cecilia Gimeno Carlos Sánchez-Azqueta Erick Guerrero Concepción Aldea Santiago Celma A 1-V 1.25-Gbps CMOS analog front-end for short reach optical links. 339-342 2013 ESSCIRC https://doi.org/10.1109/ESSCIRC.2013.6649142 conf/esscirc/2013 db/conf/esscirc/esscirc2013.html#GimenoSGAC13 Carlos Sánchez-Azqueta Cecilia Gimeno Concepción Aldea Santiago Celma Cristina Azcona CMOS receiver with equalizer and CDR for short-reach optical communications. 497-500 2013 ISCAS https://doi.org/10.1109/ISCAS.2013.6571889 conf/iscas/2013 db/conf/iscas/iscas2013.html#Sanchez-AzquetaGACA13 Cecilia Gimeno Erick Guerrero Concepción Aldea Santiago Celma Cristina Azcona A fully-differential adaptive equalizer using the spectrum-balancing technique. 1187-1190 2013 ISCAS https://doi.org/10.1109/ISCAS.2013.6572064 conf/iscas/2013 db/conf/iscas/iscas2013.html#GimenoGACA13 Carlos Sánchez-Azqueta Cecilia Gimeno Concepción Aldea Santiago Celma Cristina Azcona Bang-bang phase detector model revisited. 1761-1764 2013 ISCAS https://doi.org/10.1109/ISCAS.2013.6572206 conf/iscas/2013 db/conf/iscas/iscas2013.html#Sanchez-AzquetaGACA13a Cecilia Gimeno Concepción Aldea Santiago Celma Francisco Aznar Cristina Azcona A 1-V CMOS receiver front-end for high-speed SI-POF links. 1732-1735 2012 ISCAS https://doi.org/10.1109/ISCAS.2012.6271597 conf/iscas/2012 db/conf/iscas/iscas2012.html#GimenoACAA12 Cecilia Gimeno Concepción Aldea Santiago Celma Francisco Aznar Carlos Sánchez-Azqueta A CMOS continuous-time equalizer for short-reach optical communications. 154-157 2011 conf/ecctd/2011 ECCTD https://doi.org/10.1109/ECCTD.2011.6043305 db/conf/ecctd/ecctd2011.html#GimenoACAS11

Aránzazu Otín Santiago Celma Concepción Aldea Continuous-time filter featuring Q and frequency on-chip automatic tuning. 221-242 2009 37 Int. J. Circuit Theory Appl. 2 https://doi.org/10.1002/cta.541 db/journals/ijcta/ijcta37.html#OtinCA09

Guillermo Zatorre Nicolás Medrano María Teresa Sanz Concepción Aldea Belén Calvo Santiago Celma Digitally Programmable Analogue Circuits for Sensor Conditioning Systems. 3652-3665 2009 9 Sensors 5 https://doi.org/10.3390/s90503652 https://www.wikidata.org/entity/Q40026013 db/journals/sensors/sensors9.html#ZatorreMSACC09

Aránzazu Otín Santiago Celma Concepción Aldea Continuous-time filter featuring Q and frequency on-chip automatic tuning. 336-339 2007 ECCTD https://doi.org/10.1109/ECCTD.2007.4529601 conf/ecctd/2007 db/conf/ecctd/ecctd2007.html#OtinCA07 Aránzazu Otín Santiago Celma Concepción Aldea A 40-200 MHz programmable 4th-order Gm-C filter with auto-tuning system. 214-217 2007 ESSCIRC https://doi.org/10.1109/ESSCIRC.2007.4430283 conf/esscirc/2007 db/conf/esscirc/esscirc2007.html#OtinCA07 Aránzazu Otín Santiago Celma Concepción Aldea A design strategy for VHF filters with digital programmability. 2006 conf/iscas/2006 ISCAS https://doi.org/10.1109/ISCAS.2006.1692771 db/conf/iscas/iscas2006.html#OtinCA06

Aránzazu Otín Santiago Celma Concepción Aldea A 0.18 µm CMOS 3rd-Order Digitally Programmable G<sub>m</sub>-C Filter for VHF Applications. 1509-1510 2005 88-D IEICE Trans. Inf. Syst. 7 https://doi.org/10.1093/ietisy/e88-d.7.1509 db/journals/ieicet/ieicet88d.html#OtinCA05

Aránzazu Otín Concepción Aldea Santiago Celma Low voltage LC-ladder Gm-C low-pass filters with 42-215 MHz tunable range. 245-248 2005 ECCTD https://doi.org/10.1109/ECCTD.2005.1522956 conf/ecctd/2005 db/conf/ecctd/ecctd2005.html#OtinAC05 Guillermo Zatorre-Navarro Eduardo J. Peralías Santiago Celma Pueyo Concepción Aldea Chagoyen Nicolás J. Medrano-Marqués Digital self-tuning technique for continuous-time filters. 1-4 2005 ICECS https://doi.org/10.1109/ICECS.2005.4633572 conf/icecsys/2005 db/conf/icecsys/icecsys2005.html#NavarroPPCM05

Aránzazu Otín Santiago Celma Concepción Aldea Digitally programmable CMOS transconductor for very high frequency. 869-875 2004 44 Microelectron. Reliab. 5 https://doi.org/10.1016/j.microrel.2004.01.014 db/journals/mr/mr44.html#OtinCA04

Concepción Aldea Santiago Celma Aránzazu Otín A 62 dB dynamic range sixth-order band pass filter with 100-175 MHz tuning range. 437-440 2003 ESSCIRC https://doi.org/10.1109/ESSCIRC.2003.1257166 conf/esscirc/2003 db/conf/esscirc/esscirc2003.html#AldeaCO03 Aránzazu Otín Santiago Celma Concepción Aldea Modeling of accumulation MOS capacitors for high performance analog circuits. 5-8 2003 conf/iscas/2003 ISCAS (1) https://doi.org/10.1109/ISCAS.2003.1205486 db/conf/iscas/iscas2003-1.html#OtinCA03 Pedro A. Martínez 0001 Concepción Aldea Justo Sabadell Santiago Celma Approach to the realization of state variable based oscillators. 139-142 1998 ICECS https://doi.org/10.1109/ICECS.1998.813953 conf/icecsys/1998 db/conf/icecsys/icecsys1998.html#MartinezASC98 Justo Sabadell Concepción Aldea Santiago Celma Pedro A. Martínez 0001 A low-voltage high-frequency integrator for CMOS continuous-time current-mode filters. 339-342 1998 ICECS https://doi.org/10.1109/ICECS.1998.814004 conf/icecsys/1998 db/conf/icecsys/icecsys1998.html#SabadellACM98 Javier Aguirre Cristina Azcona Francisco Aznar C. Cahill Belén Calvo E. Cascarosa Santiago CelmaSantiago Celma Pueyo Guillermo Díez-Señorans Uxua Esteban-Eraso Miguel Garcia-Bosque Cecilia Gimeno Erick Guerrero Pedro A. Martínez 0001 Antonio D. Martínez-Pérez Nicolás J. Medrano-MarquésNicolás Medrano Aránzazu Otín Eduardo J. Peralías Adrián Pérez 0002Adrián Pérez-Resa 0002 Guillermo Royo Justo Sabadell Carlos Sánchez-Azqueta María Teresa Sanz Guillermo ZatorreGuillermo Zatorre-Navarro