| Autor: |
Ramakrishna Vetury, Houlden Rohan W, Mary Winters, Daeho Kim, Frank Bi, David M. Aichele, Jeffrey B. Shealy |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
2021 IEEE International Ultrasonics Symposium (IUS). |
| DOI: |
10.1109/ius52206.2021.9593678 |
| Popis: |
Wi-Fi 6/6E uses 160 MHz channels in UNII-5/6/7/8 bands in 5-7GHz spectrum for maximizing data rates. A critical challenge for Wi-Fi 6E RF filters is low insertion loss in the 160MHz UNII-5 transmit band while adequately rejecting UNII bands 1, 2C, 3 & 4, which end only 50MHz below the first channel of the UNII-5 band. A 160MHz Wi-Fi 6E bulk acoustic wave (BAW) filter with UNII-5 average pass band insertion loss better than 2dB and 60dB rejection in the UNII-4 band is reported. A unique BAW device fabrication process capable of utilizing a wide variety of piezoelectric thin films is used to manufacture this challenging filter. Fabricated resonators show a maximum quality factor of 2500. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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