Low-Pass Chebyshev Filter based on Integrated Passive Device Technology
Butzopulos, Pantelis (2024)
2024
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2024052314759
https://urn.fi/URN:NBN:fi:amk-2024052314759
Tiivistelmä
The purpose of the thesis work was to design a Low-Pass filter on an Integrated Passive Device. The work was commissioned by VTT Technical Research Centre of Finland Ltd. The specifications of the prototype design were a pass-band frequency range of 2.2GHz, a ripple of 1.0 dB, and an insertion loss below 1.5dB. The stop-band frequency range was set between 2.8 and 10GHz, with a suppression of 50dB. The aim of the work was to study, design and create an effective filter.
Thesis study dealt with implementation of filters in general, such as passive, active filters and different type of filters. The Chebyshev filter type was the best option to approach this design, due to transmission zeros that makes the response of Chebyshev to decrease the stopband as it goes further. So, the attenuation increases the further it goes upwards from the passband.
In the execution and testing part, the circuit was synthesized by Nuhertz software and continued AWR Software by creating every EM-component step by step. The Em-components were made an EM-structure layout, which is the first model. This first model of the prototype was approached by the iteration method to create another circuit with additional passive components. The reason of the iteration method was to improve the result of the Em-structure layout by adjusting the values of the Em-components and making the correct changes in order to improve the stopband and passband of the filter.
The resulting prototype will be used for different kind of applications by the partners who were involved to this project. Also, information of this study can be useful for VTT, because this prototype made based on IPD topology. VTT owns technology and patents related to IPD topology, and as a result, VTT can use this protype in future projects.
Thesis study dealt with implementation of filters in general, such as passive, active filters and different type of filters. The Chebyshev filter type was the best option to approach this design, due to transmission zeros that makes the response of Chebyshev to decrease the stopband as it goes further. So, the attenuation increases the further it goes upwards from the passband.
In the execution and testing part, the circuit was synthesized by Nuhertz software and continued AWR Software by creating every EM-component step by step. The Em-components were made an EM-structure layout, which is the first model. This first model of the prototype was approached by the iteration method to create another circuit with additional passive components. The reason of the iteration method was to improve the result of the Em-structure layout by adjusting the values of the Em-components and making the correct changes in order to improve the stopband and passband of the filter.
The resulting prototype will be used for different kind of applications by the partners who were involved to this project. Also, information of this study can be useful for VTT, because this prototype made based on IPD topology. VTT owns technology and patents related to IPD topology, and as a result, VTT can use this protype in future projects.