High-Performance On-Chip Low-Pass Filters Using CPW and Slow-Wave-CPW Transmission Lines on Porous Silicon

2016 ◽  
Vol 63 (1) ◽  
pp. 439-445 ◽  
Author(s):  
Panagiotis Sarafis ◽  
Androula G. Nassiopoulou ◽  
Hamza Issa ◽  
Philippe Ferrari
2011 ◽  
Vol 58 (11) ◽  
pp. 3720-3724 ◽  
Author(s):  
Hamza Issa ◽  
Philippe Ferrari ◽  
Emmanouel Hourdakis ◽  
Androula G. Nassiopoulou

Electronics ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 563
Author(s):  
Jorge Pérez-Bailón ◽  
Belén Calvo ◽  
Nicolás Medrano

This paper presents a new approach based on the use of a Current Steering (CS) technique for the design of fully integrated Gm–C Low Pass Filters (LPF) with sub-Hz to kHz tunable cut-off frequencies and an enhanced power-area-dynamic range trade-off. The proposed approach has been experimentally validated by two different first-order single-ended LPFs designed in a 0.18 µm CMOS technology powered by a 1.0 V single supply: a folded-OTA based LPF and a mirrored-OTA based LPF. The first one exhibits a constant power consumption of 180 nW at 100 nA bias current with an active area of 0.00135 mm2 and a tunable cutoff frequency that spans over 4 orders of magnitude (~100 mHz–152 Hz @ CL = 50 pF) preserving dynamic figures greater than 78 dB. The second one exhibits a power consumption of 1.75 µW at 500 nA with an active area of 0.0137 mm2 and a tunable cutoff frequency that spans over 5 orders of magnitude (~80 mHz–~1.2 kHz @ CL = 50 pF) preserving a dynamic range greater than 73 dB. Compared with previously reported filters, this proposal is a competitive solution while satisfying the low-voltage low-power on-chip constraints, becoming a preferable choice for general-purpose reconfigurable front-end sensor interfaces.


2010 ◽  
Vol 52 (12) ◽  
pp. 2786-2789 ◽  
Author(s):  
A.-L. Franc ◽  
D. Kaddour ◽  
H. Issa ◽  
E. Pistono ◽  
N. Corrao ◽  
...  

2016 ◽  
Vol 116 ◽  
pp. 12-14 ◽  
Author(s):  
Marie Capelle ◽  
Jérôme Billoue ◽  
Joël Concord ◽  
Patrick Poveda ◽  
Gaël Gautier

2009 ◽  
Vol 56 (8) ◽  
pp. 1705-1711 ◽  
Author(s):  
Hsiu-Ying Cho ◽  
Tzu-Jin Yeh ◽  
Sally Liu ◽  
Chung-Yu Wu

2014 ◽  
Vol 802 ◽  
pp. 552-557
Author(s):  
Lauro Paulo Silva Neto ◽  
J.O. Rossi ◽  
P.A.G. Dias ◽  
J.J. Barroso

Ferrite beads are ferromagnetic materials that exhibit a small inductance at low frequencies, becoming resistive at high frequencies. These devices are used as low pass filters for reducing electromagnetic interference (EMI) in communications and power electronics because the resistive losses attenuate the undesired frequencies. As ferrite beads have a nonlinear behavior with current and frequency they have been used in nonlinear transmission lines (NLTLs) for high power microwave generation in space and defense applications. In this work, high frequency ferrite beads are characterized in the frequency range up to 1 GHz by measuring S11 reflection parameter in order to calculate their complex permeability and losses, key parameters in the design of NLTLs. In addition, X-ray diffraction (XRD) is used to identify their chemical element composition. Finally, the motivation for this work is basically due to the limited information on ferrite materials provided by the manufacturers.


Frequenz ◽  
2015 ◽  
Vol 69 (7-8) ◽  
Author(s):  
H. Siahkamari ◽  
S. Vahab A. Makki ◽  
S.-A. Malakooti

AbstractThis paper presents a new design of a compact Gysel power divider with harmonic suppression. It comprises six similar low-pass filters in lieu of six conventional transmission lines in the Gysel power divider. Not only does the proposed power divider extremely reduce the occupied area to 22.7% of the conventional Gysel power divider at 900 MHz, but also it features the higher order harmonic rejection. Simulation and measurement results show good insertion loss, return loss, isolation, and wide stopband bandwidth, while maintaining high-power handling capability over the Wilkinson power divider.


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