Miniaturization Design for 8 × 8 Butler Matrix Based on Back-to-Back Bilayer Microstrip
A low-cost, compact 8 × 8 Butler matrix based on a novel bilayer microstrip configuration is presented and implemented for 4.3 GHz telecommunication application. A back-to-back placed bilayer microstrip structure has been proposed to avoid using crossover. To expand operational bandwidth of the Butl...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2014/583903 |
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| _version_ | 1832560035989815296 |
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| author | Yu Zhai Xiaoxing Fang Kejia Ding Fei He |
| author_facet | Yu Zhai Xiaoxing Fang Kejia Ding Fei He |
| author_sort | Yu Zhai |
| collection | DOAJ |
| description | A low-cost, compact 8 × 8 Butler matrix based on a novel bilayer microstrip configuration is presented and implemented for 4.3 GHz telecommunication application. A back-to-back placed bilayer microstrip structure has been proposed to avoid using crossover. To expand operational bandwidth of the Butler matrix, a three-branch line directional coupler has been employed as 3 dB/90° bridge, and a kind of improved two-order Schiffman phase shifter has been adopted as fixed phase shifter. For application of indoor wireless communication, a compact broadband 8 × 8 Butler matrix has been designed and fabricated. The measured results show that the return loss of the matrix is lower than −10 dB, the isolation is better than 17 dB, the power distribution error is less than ±2.0 dB, the phase error is less than ±15°, and the relative bandwidth is more than 23%. |
| format | Article |
| id | doaj-art-5f1579cdabef407593f3d1180fbad12e |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-5f1579cdabef407593f3d1180fbad12e2025-02-03T01:28:36ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/583903583903Miniaturization Design for 8 × 8 Butler Matrix Based on Back-to-Back Bilayer MicrostripYu Zhai0Xiaoxing Fang1Kejia Ding2Fei He3School of Electronic and Information Engineering, Beihang University, Beijing 100191, ChinaResearch Institute of Unmanned Aerial Vehicle, Beihang University, Beijing 100191, ChinaResearch Institute of Unmanned Aerial Vehicle, Beihang University, Beijing 100191, ChinaSchool of Electronic and Information Engineering, Beihang University, Beijing 100191, ChinaA low-cost, compact 8 × 8 Butler matrix based on a novel bilayer microstrip configuration is presented and implemented for 4.3 GHz telecommunication application. A back-to-back placed bilayer microstrip structure has been proposed to avoid using crossover. To expand operational bandwidth of the Butler matrix, a three-branch line directional coupler has been employed as 3 dB/90° bridge, and a kind of improved two-order Schiffman phase shifter has been adopted as fixed phase shifter. For application of indoor wireless communication, a compact broadband 8 × 8 Butler matrix has been designed and fabricated. The measured results show that the return loss of the matrix is lower than −10 dB, the isolation is better than 17 dB, the power distribution error is less than ±2.0 dB, the phase error is less than ±15°, and the relative bandwidth is more than 23%.http://dx.doi.org/10.1155/2014/583903 |
| spellingShingle | Yu Zhai Xiaoxing Fang Kejia Ding Fei He Miniaturization Design for 8 × 8 Butler Matrix Based on Back-to-Back Bilayer Microstrip International Journal of Antennas and Propagation |
| title | Miniaturization Design for 8 × 8 Butler Matrix Based on Back-to-Back Bilayer Microstrip |
| title_full | Miniaturization Design for 8 × 8 Butler Matrix Based on Back-to-Back Bilayer Microstrip |
| title_fullStr | Miniaturization Design for 8 × 8 Butler Matrix Based on Back-to-Back Bilayer Microstrip |
| title_full_unstemmed | Miniaturization Design for 8 × 8 Butler Matrix Based on Back-to-Back Bilayer Microstrip |
| title_short | Miniaturization Design for 8 × 8 Butler Matrix Based on Back-to-Back Bilayer Microstrip |
| title_sort | miniaturization design for 8 8 butler matrix based on back to back bilayer microstrip |
| url | http://dx.doi.org/10.1155/2014/583903 |
| work_keys_str_mv | AT yuzhai miniaturizationdesignfor88butlermatrixbasedonbacktobackbilayermicrostrip AT xiaoxingfang miniaturizationdesignfor88butlermatrixbasedonbacktobackbilayermicrostrip AT kejiading miniaturizationdesignfor88butlermatrixbasedonbacktobackbilayermicrostrip AT feihe miniaturizationdesignfor88butlermatrixbasedonbacktobackbilayermicrostrip |