High-performance filtering power divider based on air-filled substrate integrated waveguide technology
A filtering power divider based on air-filled substrate-integrated waveguide (AFSIW) technology is proposed in this study. The AFSIW structure is used in the proposed filtering power divider for substantially reducing the transmission losses. This structure occupies a large area because of the use o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Electronics and Telecommunications Research Institute (ETRI)
2023-04-01
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| Series: | ETRI Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.4218/etrij.2021-0464 |
| _version_ | 1797839082766729216 |
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| author | Ali-Reza Moznebi Kambiz Afrooz Mostafa Danaeian |
| author_facet | Ali-Reza Moznebi Kambiz Afrooz Mostafa Danaeian |
| author_sort | Ali-Reza Moznebi |
| collection | DOAJ |
| description | A filtering power divider based on air-filled substrate-integrated waveguide (AFSIW) technology is proposed in this study. The AFSIW structure is used in the proposed filtering power divider for substantially reducing the transmission losses. This structure occupies a large area because of the use of air as a dielectric instead of typical dielectric materials. A filtering power divider provides power division and frequency selectivity simultaneously in a single device. The proposed filtering power divider comprises three AFSIW cavities. The filtering function is achieved using symmetrical inductive posts. The input and output ports of the proposed circuit are realized by directly connecting coaxial lines to the AFSIW cavities. This transition from the coaxial line to the AFSIW cavity eliminates the additional transitions, such as AFSIW-SIW and SIW-conductor-backed coplanar waveguide, applied in existing AFSIW circuits. The proposed power divider with a second-order bandpass filtering response is fabricated and measured at 5.5 GHz. The measurement results show that this circuit has a minimum insertion loss of 1 dB, 3-dB fractional bandwidth of 11.2%, and return loss exceeding 11 dB. |
| first_indexed | 2024-04-09T15:52:29Z |
| format | Article |
| id | doaj.art-f13f584a39544d64b9e9b323055665a1 |
| institution | Directory Open Access Journal |
| issn | 1225-6463 |
| language | English |
| last_indexed | 2024-04-09T15:52:29Z |
| publishDate | 2023-04-01 |
| publisher | Electronics and Telecommunications Research Institute (ETRI) |
| record_format | Article |
| series | ETRI Journal |
| spelling | doaj.art-f13f584a39544d64b9e9b323055665a12023-04-26T06:13:28ZengElectronics and Telecommunications Research Institute (ETRI)ETRI Journal1225-64632023-04-0145233834510.4218/etrij.2021-046410.4218/etrij.2021-0464High-performance filtering power divider based on air-filled substrate integrated waveguide technologyAli-Reza MoznebiKambiz AfroozMostafa DanaeianA filtering power divider based on air-filled substrate-integrated waveguide (AFSIW) technology is proposed in this study. The AFSIW structure is used in the proposed filtering power divider for substantially reducing the transmission losses. This structure occupies a large area because of the use of air as a dielectric instead of typical dielectric materials. A filtering power divider provides power division and frequency selectivity simultaneously in a single device. The proposed filtering power divider comprises three AFSIW cavities. The filtering function is achieved using symmetrical inductive posts. The input and output ports of the proposed circuit are realized by directly connecting coaxial lines to the AFSIW cavities. This transition from the coaxial line to the AFSIW cavity eliminates the additional transitions, such as AFSIW-SIW and SIW-conductor-backed coplanar waveguide, applied in existing AFSIW circuits. The proposed power divider with a second-order bandpass filtering response is fabricated and measured at 5.5 GHz. The measurement results show that this circuit has a minimum insertion loss of 1 dB, 3-dB fractional bandwidth of 11.2%, and return loss exceeding 11 dB.https://doi.org/10.4218/etrij.2021-0464air-filled substrate-integrated waveguidebandpass filterfiltering power dividerlow loss transition |
| spellingShingle | Ali-Reza Moznebi Kambiz Afrooz Mostafa Danaeian High-performance filtering power divider based on air-filled substrate integrated waveguide technology ETRI Journal air-filled substrate-integrated waveguide bandpass filter filtering power divider low loss transition |
| title | High-performance filtering power divider based on air-filled substrate integrated waveguide technology |
| title_full | High-performance filtering power divider based on air-filled substrate integrated waveguide technology |
| title_fullStr | High-performance filtering power divider based on air-filled substrate integrated waveguide technology |
| title_full_unstemmed | High-performance filtering power divider based on air-filled substrate integrated waveguide technology |
| title_short | High-performance filtering power divider based on air-filled substrate integrated waveguide technology |
| title_sort | high performance filtering power divider based on air filled substrate integrated waveguide technology |
| topic | air-filled substrate-integrated waveguide bandpass filter filtering power divider low loss transition |
| url | https://doi.org/10.4218/etrij.2021-0464 |
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