The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform

George S. Moschytz - One of the best experts on this subject based on the ideXlab platform.

  • Inductorless Elliptic Filters with reduced number of capacitors using signal-flow graphs
    Eurocon 2013, 2013
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    In this paper a method of realizing Elliptic Filters using signal-flow graphs is presented. Elliptic Filters having a minimum number of capacitors are compared with those having a higher number of capacitors. This number is particularly significant when comparing Filters realized in balanced-to-ground and unbalanced form. The version with a canonic number of capacitors provides area savings in IC form, whereas both (Filters with a minimum [i.e. canonic] number of capacitors and those having a higher number of capacitors) have a low sensitivity to component tolerances. The sfg derivations necessary to realize higher-order Elliptic Filters with a reduced number of capacitors is presented. Transfer function magnitudes are simulated using the PSpice program. Monte Carlo runs confirm the low sensitivity to component tolerances of both circuit types.

  • EUROCON - Inductorless Elliptic Filters with reduced number of capacitors using signal-flow graphs
    Eurocon 2013, 2013
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    In this paper a method of realizing Elliptic Filters using signal-flow graphs is presented. Elliptic Filters having a minimum number of capacitors are compared with those having a higher number of capacitors. This number is particularly significant when comparing Filters realized in balanced-to-ground and unbalanced form. The version with a canonic number of capacitors provides area savings in IC form, whereas both (Filters with a minimum [i.e. canonic] number of capacitors and those having a higher number of capacitors) have a low sensitivity to component tolerances. The sfg derivations necessary to realize higher-order Elliptic Filters with a reduced number of capacitors is presented. Transfer function magnitudes are simulated using the PSpice program. Monte Carlo runs confirm the low sensitivity to component tolerances of both circuit types.

  • Tuning Elliptic Filters with a ‘tuning biquad’
    2009 IEEE International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the dasiatuning biquadpsila, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (dasiamaximum-Q polespsila) combined with the zero pair with the lowest frequency (dasiaminimum-frequency zerospsila). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized seventh-order Elliptic LP filter.

  • tuning Elliptic Filters with a tuning biquad
    International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the ‘tuning biquad’, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (‘maximum-Q poles’) combined with the zero pair with the lowest frequency (‘minimum-frequency zeros’). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized sevent-horder Elliptic LP filter.

  • ISCAS - Tuning Elliptic Filters with a ‘tuning biquad’
    2009 IEEE International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the ‘tuning biquad’, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (‘maximum-Q poles’) combined with the zero pair with the lowest frequency (‘minimum-frequency zeros’). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized sevent-horder Elliptic LP filter.

Drazen Jurisic - One of the best experts on this subject based on the ideXlab platform.

  • Inductorless Elliptic Filters with reduced number of capacitors using signal-flow graphs
    Eurocon 2013, 2013
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    In this paper a method of realizing Elliptic Filters using signal-flow graphs is presented. Elliptic Filters having a minimum number of capacitors are compared with those having a higher number of capacitors. This number is particularly significant when comparing Filters realized in balanced-to-ground and unbalanced form. The version with a canonic number of capacitors provides area savings in IC form, whereas both (Filters with a minimum [i.e. canonic] number of capacitors and those having a higher number of capacitors) have a low sensitivity to component tolerances. The sfg derivations necessary to realize higher-order Elliptic Filters with a reduced number of capacitors is presented. Transfer function magnitudes are simulated using the PSpice program. Monte Carlo runs confirm the low sensitivity to component tolerances of both circuit types.

  • EUROCON - Inductorless Elliptic Filters with reduced number of capacitors using signal-flow graphs
    Eurocon 2013, 2013
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    In this paper a method of realizing Elliptic Filters using signal-flow graphs is presented. Elliptic Filters having a minimum number of capacitors are compared with those having a higher number of capacitors. This number is particularly significant when comparing Filters realized in balanced-to-ground and unbalanced form. The version with a canonic number of capacitors provides area savings in IC form, whereas both (Filters with a minimum [i.e. canonic] number of capacitors and those having a higher number of capacitors) have a low sensitivity to component tolerances. The sfg derivations necessary to realize higher-order Elliptic Filters with a reduced number of capacitors is presented. Transfer function magnitudes are simulated using the PSpice program. Monte Carlo runs confirm the low sensitivity to component tolerances of both circuit types.

  • Tuning Elliptic Filters with a ‘tuning biquad’
    2009 IEEE International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the dasiatuning biquadpsila, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (dasiamaximum-Q polespsila) combined with the zero pair with the lowest frequency (dasiaminimum-frequency zerospsila). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized seventh-order Elliptic LP filter.

  • tuning Elliptic Filters with a tuning biquad
    International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the ‘tuning biquad’, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (‘maximum-Q poles’) combined with the zero pair with the lowest frequency (‘minimum-frequency zeros’). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized sevent-horder Elliptic LP filter.

  • ISCAS - Tuning Elliptic Filters with a ‘tuning biquad’
    2009 IEEE International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the ‘tuning biquad’, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (‘maximum-Q poles’) combined with the zero pair with the lowest frequency (‘minimum-frequency zeros’). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized sevent-horder Elliptic LP filter.

Neven Mijat - One of the best experts on this subject based on the ideXlab platform.

  • Inductorless Elliptic Filters with reduced number of capacitors using signal-flow graphs
    Eurocon 2013, 2013
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    In this paper a method of realizing Elliptic Filters using signal-flow graphs is presented. Elliptic Filters having a minimum number of capacitors are compared with those having a higher number of capacitors. This number is particularly significant when comparing Filters realized in balanced-to-ground and unbalanced form. The version with a canonic number of capacitors provides area savings in IC form, whereas both (Filters with a minimum [i.e. canonic] number of capacitors and those having a higher number of capacitors) have a low sensitivity to component tolerances. The sfg derivations necessary to realize higher-order Elliptic Filters with a reduced number of capacitors is presented. Transfer function magnitudes are simulated using the PSpice program. Monte Carlo runs confirm the low sensitivity to component tolerances of both circuit types.

  • EUROCON - Inductorless Elliptic Filters with reduced number of capacitors using signal-flow graphs
    Eurocon 2013, 2013
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    In this paper a method of realizing Elliptic Filters using signal-flow graphs is presented. Elliptic Filters having a minimum number of capacitors are compared with those having a higher number of capacitors. This number is particularly significant when comparing Filters realized in balanced-to-ground and unbalanced form. The version with a canonic number of capacitors provides area savings in IC form, whereas both (Filters with a minimum [i.e. canonic] number of capacitors and those having a higher number of capacitors) have a low sensitivity to component tolerances. The sfg derivations necessary to realize higher-order Elliptic Filters with a reduced number of capacitors is presented. Transfer function magnitudes are simulated using the PSpice program. Monte Carlo runs confirm the low sensitivity to component tolerances of both circuit types.

  • Tuning Elliptic Filters with a ‘tuning biquad’
    2009 IEEE International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the dasiatuning biquadpsila, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (dasiamaximum-Q polespsila) combined with the zero pair with the lowest frequency (dasiaminimum-frequency zerospsila). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized seventh-order Elliptic LP filter.

  • tuning Elliptic Filters with a tuning biquad
    International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the ‘tuning biquad’, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (‘maximum-Q poles’) combined with the zero pair with the lowest frequency (‘minimum-frequency zeros’). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized sevent-horder Elliptic LP filter.

  • ISCAS - Tuning Elliptic Filters with a ‘tuning biquad’
    2009 IEEE International Symposium on Circuits and Systems, 2009
    Co-Authors: Drazen Jurisic, Neven Mijat, George S. Moschytz
    Abstract:

    This paper presents an optimum tuning procedure for high-order low-pass (LP) Elliptic Filters. Since Elliptic Filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the ‘tuning biquad’, in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q (‘maximum-Q poles’) combined with the zero pair with the lowest frequency (‘minimum-frequency zeros’). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized sevent-horder Elliptic LP filter.

A. Mazinani - One of the best experts on this subject based on the ideXlab platform.

Roberto Sorrentino - One of the best experts on this subject based on the ideXlab platform.

  • Compact Quasi-Elliptic Filters With Mushroom-Shaped Resonators Manufactured With 3-D Printer
    IEEE Transactions on Microwave Theory and Techniques, 2018
    Co-Authors: Cristiano Tomassoni, Giuseppe Venanzoni, Marco Dionigi, Roberto Sorrentino
    Abstract:

    Additive manufacturing (AM) has proven to be a very interesting technology for a wide range of applications. In this paper, a stereolithography (SLA) 3-D printer has been used for the manufacturing of a new class of Filters whose resonators consist of two mushroom-shaped posts transversely placed in a cavity. Each resonator implements a transverse doublet able to produce two poles and two transmission zeros in the upper stopband. The two mushroom stems are connected through a metal wire, whose the position and shape allow the control of the doublet parameters. Higher order Filters are obtained by cascading doublet resonators through metal wires in an in-line configuration. This results in Filters with nonconventional geometry that can be manufactured thanks to the high flexibility of AM technology. Structures manufactured by SLA are in plastic; thus, a metallization process is required. Here, the Filters manufactured have been electroplated with copper. A four-pole filter with four transmission zeros has been designed and manufactured in order to demonstrate the feasibility of the structure proposed.

  • Novel waveguide pseudo-Elliptic Filters using slant ridge resonators
    2008 IEEE MTT-S International Microwave Symposium Digest, 2008
    Co-Authors: Simone Bastioli, Luca Marcaccioli, Roberto Sorrentino
    Abstract:

    This paper presents a novel resonant structure for the design of compact pseudo-Elliptic Filters in waveguide technology. The resonator consists of a rectangular ridge which is arbitrarily located and oriented within a rectangular waveguide. Under certain conditions, by exciting the ridge with the fundamental TE10 mode of the waveguide, the resonator exhibits a transmission zero besides the transmission pole, thus behaving as a singlet. This element can be used as a basic building block for the design of higher order Filters. In this work an in-line 5th order filter with three transmission zeros has been fabricated and tested, demonstrating the feasibility of the proposed design.