scholarly journals New Universal Filter Using Two Current-Feedback Amplifiers

1997 ◽  
Vol 20 (2) ◽  
pp. 111-117 ◽  
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Husain Abdullah Al-Zaher
Keyword(s):  
Quality Factor ◽  
Natural Frequency ◽  
Second Order ◽  
Universal Filter ◽  
Independent Control ◽  
Current Feedback ◽  
Passive Components ◽  
Voltage Mode ◽  
Order Filter

A new universal voltage-mode second-order filter circuit is presented. The circuit has three inputs and one low-impedance output and can realize all the standard filter functions; lowpass, highpass, bandpass, notch, and allpass, without changing the passive elements. The proposed circuit uses only five passive components and enjoys independent control of the natural frequency and the bandwidth, orthogonal control of the natural frequency and the quality factor, as well as low active and passive sensitivities.

Synthesis of biquad filters using two VD-DIBAs with independent control of quality factor and natural frequency

2021 ◽  
Vol 132 ◽  
pp. 153601
Author(s):  
Winai Jaikla ◽  
Surapong Siripongdee ◽  
Fabian Khateb ◽  
Roman Sotner ◽  
Phamorn Silapan ◽  
...  
Keyword(s):  
Quality Factor ◽  
Natural Frequency ◽  
Independent Control

Voltage-mode universal filter with one input and five outputs using DDCCTAs and all-grounded passive components

2012 ◽  
Vol 43 (8) ◽  
pp. 555-561 ◽  
Author(s):  
Orapin Channumsin ◽  
Tattaya Pukkalanun ◽  
Worapong Tangsrirat
Keyword(s):  
Universal Filter ◽  
Passive Components ◽  
Voltage Mode

UHF second order bandpass filters based on miniature two-section SIR coaxial resonators

2015 ◽  
Vol 8 (8) ◽  
pp. 1187-1196 ◽  
Author(s):  
Hakim Aouidad ◽  
Eric Rius ◽  
Jean-François Favennec ◽  
Alexandre Manchec ◽  
Yann Clavet
Keyword(s):  
Quality Factor ◽  
Substantial Reduction ◽  
Bandpass Filters ◽  
Second Order ◽  
The Other ◽  
Central Core ◽  
Order Filter ◽  
Uhf Band

This paper describes a concept of stepped impedance resonators (SIR) built from two coaxial structures fitted inside one another. The resonator is built out of a succession of two coaxial sections in cascade, where the ground conductor of the first one is the central core of the next, or vice-versa. An advantageous property of SIR is that they allow a substantial reduction in size, while keeping away the first harmonic and without strongly degrading the quality factor. After describing the theoretical behavior of the resonator, we will then present the specific properties of this approach in second order filter, conceived, and realized in the UHF band. With this example, we will also address flexibility and tunability aspects, which are the other potentially useful properties of the structure. Measurements and simulations are presented and discussed. The architecture resembles a set of two Russian dolls that fit inside one another.

Cascadable independently and electronically tunable voltage-mode universal filter with grounded passive components

2018 ◽  
Vol 84 ◽  
pp. 290-299 ◽  
Author(s):  
Piya Supavarasuwat ◽  
Montree Kumngern ◽  
Surasak Sangyaem ◽  
Winai Jaikla ◽  
Fabian Khateb
Keyword(s):  
Universal Filter ◽  
Passive Components ◽  
Voltage Mode ◽  
Electronically Tunable

Current-Mode First-Order Universal Filter and its Voltage-Mode Transformation

2019 ◽  
Vol 29 (09) ◽  
pp. 2050149 ◽  
Author(s):  
Bhartendu Chaturvedi ◽  
Jitendra Mohan ◽  
Atul Kumar ◽  
Kirat Pal
Keyword(s):  
Integrated Circuit ◽  
Current Mode ◽  
Matching Condition ◽  
Universal Filter ◽  
Circuit Realization ◽  
Passive Components ◽  
Mode Transformation ◽  
First Order ◽  
Voltage Mode ◽  
Circuit Technology

This paper deals with the realization of current-mode first-order universal filter based on multiple output second generation current conveyor (MO-CCII). Two MO-CCIIs, one resistor and one capacitor are used in the circuit realization. The proposed work includes additional features such as ease of cascadability, easily implementable in modern integrated circuit technology and no requirement of passive components matching condition. The additional beauty of the proposed filter structure is that all three responses can also be realized by interchanging the positions of passive components as well. Moreover, a possible transformation of the proposed current-mode type universal filter into a voltage-mode type universal filter using network transpose method is also explored. The possibility of mode transformation further expands the scope of proposed idea. The theoretical aspects are verified using cadence VIRTUOSO simulation results.

Sign in / Sign up

Export Citation Format

Share Document