Design of fifth-order LF 0.05° equiripple linear phase lowpass filter with gain boost using nauta transcondutor

2017 ◽  
Author(s):  
Yichuang Sun ◽  
Xi Zhu ◽  
Meriam G. Bautista
Keyword(s):  
Linear Phase ◽  
Lowpass Filter ◽  
Fifth Order

A fifth-order 880MHz/1.76GHz active lowpass filter for 60GHz communications in 40nm digital CMOS

2010 ◽  
Author(s):  
Piet Wambacq ◽  
Vito Giannini ◽  
Karen Scheir ◽  
Wim Van Thillo ◽  
Yves Rolain
Keyword(s):  
Lowpass Filter ◽  
Digital Cmos ◽  
Fifth Order

A DESIGN METHODOLOGY FOR TWO-DIMENSIONAL ANALOG FILTERS WITH LINEAR PHASE

1991 ◽  
Vol 01 (01) ◽  
pp. 75-91
Author(s):  
G. GU ◽  
P. MISRA ◽  
B. A. SHENOI
Keyword(s):  
Fourier Series ◽  
Design Methodology ◽  
Analog Filters ◽  
Two Dimensional ◽  
Linear Phase ◽  
Design Technique ◽  
Lowpass Filter ◽  
Analog Filter

A new methodology is proposed for the synthesis of two-dimensional analog filters with linear phase. The Fourier series theory is employed to design a noncausal Laguerre type filter and Hankel approximation machinery is then used to synthesize the causal, stable two-dimensional analog filter with linear phase. The proposed design technique is illustrated by design of a lowpass filter.

scholarly journals A New Lowpass Filter Unit Cell with Sharp Roll-off and Improved Stopband Performance in Coplanar Waveguide Technology

2018 ◽  
Vol 7 (5) ◽  
pp. 14-19
Author(s):  
A. Bijari ◽  
M. Mohebrad
Keyword(s):  
Insertion Loss ◽  
Coplanar Waveguide ◽  
Unit Cell ◽  
Lowpass Filter ◽  
Transmission Zero ◽  
High Impedance ◽  
Filter Structure ◽  
Filter Unit ◽  
Fifth Order

In this paper, a new compact unit cell for a coplanar waveguide (CPW) lowpass filter (LPF) is proposed. By combining a pair of coupled parallel stepped impedance resonators (SIRs) and high impedance short stubs in the CPW line, a fifth-order elliptic lowpass filter unit cell (LUC) is designed. The extra transmission zero introduced by parallel coupled SIRs is used to extend the stopband and increase the roll-off rate. The characteristics of the proposed LUC is investigated to achieve a sharp roll-off and a wide stopband. The measured results are in accordance with the simulated results. It has an insertion loss less than 0.9 dB from dc to 6 GHz, and a wide -15 dB stopband from 7.5 to 18 GHz. In addition, the filter dimensions are as small as 4.9 mm × 8.7 mm, that is, 0.046λg2, where λg is the guided wavelength at the cut-off frequency. The filter structure is simple and easy to fabricate as well.

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