• Ultrasound Needle Guidance System for Precision Vaccinations and Drug Deliver ()
  Semih Aslan, Mahbubur Rahman, Sourav Das, Bonnie Schnitta
  Circuits and Systems Vol.12 No.1,  January 29, 2021
  DOI: 10.4236/cs.2021.121001  654 Downloads   2,039 Views   Citations
  This article belongs to the Special Issue on

• Noise Reduction for Digital Communications—The Masterpiece, a Modified Costas Loop ()
  János Ladvánszky
  Circuits and Systems Vol.11 No.6,  June 28, 2020
  DOI: 10.4236/cs.2020.116006  822 Downloads   3,143 Views   Citations
  This article belongs to the Special Issue on

• Tunable Floating Resistor Based on Current Inverting Differential Input Transconductance Amplifier ()
  Zainab Haseeb, Dinesh Prasad, Mainuddin, M. W. Akram
  Circuits and Systems Vol.11 No.5,  May 29, 2020
  DOI: 10.4236/cs.2020.115005  910 Downloads   2,589 Views   Citations
  This article belongs to the Special Issue on

• CMOS Realization of VDVTA and OTA Based Fully Electronically Tunable First Order All Pass Filter with Optimum Linearity at Low Supply Voltage ± 0.85 V ()
  Ghanshyam Singh
  Circuits and Systems Vol.11 No.4,  April 30, 2020
  DOI: 10.4236/cs.2020.114004  870 Downloads   2,986 Views   Citations
  This article belongs to the Special Issue on

• A High-Speed DLL-Based Hybrid Phase Conjugator for 5G Beamforming ()
  Michael Bolt, Mark Adams
  Circuits and Systems Vol.11 No.3,  March 31, 2020
  DOI: 10.4236/cs.2020.113003  731 Downloads   2,161 Views   Citations
  This article belongs to the Special Issue on

• CMOS Realization of VDTA Based Electronically Tunable Wave Active Filter with Minimum Power Consumption at Low Supply Voltage ±0.82 V ()
  Ghanshyam Singh
  Circuits and Systems Vol.11 No.2,  February 28, 2020
  DOI: 10.4236/cs.2020.112002  900 Downloads   2,203 Views   Citations
  This article belongs to the Special Issue on

• A Multimedia Based Virtual Learning System: A Panacea for Nigerian Tertiary Institutions ()
  Emmanuel Nwabueze Ekwonwune, Chidiebere Chukwuma Oparah
  Circuits and Systems Vol.11 No.1,  January 31, 2020
  DOI: 10.4236/cs.2020.111001  937 Downloads   2,543 Views   Citations
  This article belongs to the Special Issue on