Open Access Open Access  Restricted Access Subscription or Fee Access

Design of a Dual-Band Bandpass Filter Using Active Inductor Principle

(*) Corresponding author

Authors' affiliations



A new topology of a dual-band active bandpass filter is presented in this paper. This structure consists of two transconductances constituting the active inductor, which represents the core of the filter and which is responsible for delivering the resonance frequency of the filter, connected at its input to a varactor used to tune the centre frequency. The two peaks of the dual-band filter can be tuned in frequency while maintaining the same power of gain and the same bandwidth. Good out-of-band rejection is observed of -13 dB and -11 dB on both bands with a very high quality factor that exceeds 1500.The filter is designed for 5G applications around 28GHz and 38 GHz and for satellite uplinks.
Copyright © 2017 Praise Worthy Prize - All rights reserved.


Dual-Band Filter; Active Inductor; Gyrator; 5G; Frequency Tuning

Full Text:



C. Sujitha, S. Ravi, Bakary Diarra, Joseph Chuma, "Transformer Less Voltage Quadrupler Based DC-DC Converter with Coupled Inductor and PI Filter for Increased Voltage Gain and Efficiency," International Journal of Power Electronics and Drive System (IJPEDS), Vol. 7, No. 4, December 2016, pp. 1023-1030.

Jingyang Fang, Hongchang Li, Yi Tang, "A Magnetic Integrated LLCL Filter for Grid-Connected Voltage-Source Converters,"IEEE Transactions on Power Electronics, Volume: 32, Issue: 3, March 2017

T. Devarajulu Reddy, Mukti Barai, "A novel configuration to eliminate dominant Harmonic frequency (DHF) by using FFT in series active filters, " 2016 IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES), 2016, Pages: 1 – 5

Rishab Mehra, Vikash Kumar, Aminul Islam, Brajesh Kumar Kaushik, "Variation-aware widely tunable nanoscale design of CMOS active inductor-based RF bandpass filter", International Journal of Circuit Theory and Applications, 2017, Volume 45, Issue 5

Domenico Zito, Domenico Pepe, and Alessandro Fonte,"High-Frequency CMOS Active Inductor: DesignMethodology and Noise Analysis," IEEE Transactions On Very Large Scale Integration (VLSI) Systems, Year: 2015, Volume: 23, Issue: 6

Aymen Ben Hammadi, Mongia Mhiri, Fayrouz Haddad, Sehmi Saad, Kamel Besbes, "An Enhanced Design of RF Integrated DifferentialActive Inductor," Springer BioNanoSci, September 2016, Volume 6, Issue 3, pp 185–192

Imane Halkhams, Said Mazer, Mahmoud Mehdi, Moulhime El Bekkali, Wafae El Hamdani, “Improved Fully Differential Active Filter For L-Band Applications”, International Journal of Power Electronics and Drive Systems, 2017, Vol 8, No 2.

Austria Micro Systems. 0.35 μm CMOS S35 Processes and runs, CMP annual users meeting, 10 January 2008, PARIS

Mudit Ratana Bhalla, Anand Vardhan Bhalla, "Generations of Mobile Wireless Technology: A Survey,"International Journal of Computer Applications, Volume 5– No.4, Août 2010

ECC, " ECO Bulletin on on-going/new issues in other regions or organisations, " 41st Meeting, Belgium, 1-4 March 2016

Sulyman, A.I. Nassar, A.T. Samimi, M.K. MacCartney, G.R. Rappaport, T.S. ; Alsanie, "A. Radio Propagation Path Loss Models for 5G Cellular Networks in the 28 GHz and 38 GHz Millimeter-wave Bands, " IEEE Communications Magazine, Vol. 52, No. 9, September 2014, pp.78 – 86

Ioan Burciu, "Architecture of radiofrequency receivers dedicated to simultaneous dual-band processing,"PhD thesis of INSA Lyon, 2010

Yusmarnita Yusop, ShakirSaat, Huzaimah Husin, Imran Hindustan, Sing Kiong Nguang, "Analysis of 1MHz Class-E Power Amplifier for Load and Duty Cycle Variations", International Journal of Power Electronics and Drive System (IJPEDS), Vol. 7, No. 2, June 2016, pp. 358-368

Qizheng Gu, "RF System Design of Transceivers for Wireless Communications, "Springer Science & Business Media, 2005

Cristian Andriesei, Liviu Goras."On Frequency and Quality Factor Independent Tuning Possibilities".Romanian Journal of Information Science and Technology. 2008;Volume 11, Number 4: 367-382

A. Thanachayanont, "CMOS Transistor-Only Active Inductor For IF/RF Applications", IEEE ICIT,2002: 1209-1212

Aymen Ben Hammadi ; Mongia Mhiri ; Fayrouz Haddad ; Sehmi Saad ; Kamel Besbes, "A 1.82–4.44 GHz reconfigurable bandpass filter based on tunable active inductor", Design & Test Symposium (IDT), 2016 11th International, 2016, 254 - 259

Y. Wu, M. Ismail, "RF Bandpass Filter Design Based on CMOS Active Inductors, "IEEE Transactions on Circuits and Systems, vol. 50, no. 12, 2003, pp. 942–949.

Halkhams, I., Mehdi, M., Mazer, S., El Bekkali, M., El Hamdani, W., Temcamani, F., A Wide Tuning Range Active Filter for the 5G in CMOS Technology, (2016) International Journal on Communications Antenna and Propagation (IRECAP), 6 (1), pp. 50-55.

K.-C. Yoon,J.-C. Lee, "A stable low noise and high gain dual-band active band-pass filter with GaAs-MESFET using CRLH metamaterial", Microwave and Optical Technology Letters, July 2014, Volume 56, Issue 9

A. Alahyari, A.Habibzadeh, M. Dousti,"Tunable Active Dual-Band Bandpass Filter Design Using MMIC Technology", International Journal of Engineering & Technology IJET-IJENS,2011, Vol: 11 No: 01

Christophe FATRAS, "Study of altimetric backscattering for the characterization of surfaces and soil moisture in West Africa," PhD thesis of the University of TOULOUSE, 2015


  • There are currently no refbacks.

Please send any question about this web site to
Copyright © 2005-2023 Praise Worthy Prize