Abstract
A filtering power divider and a filtering balun of fourth-order are synthesized with a single cross coupled quadruplet filter. The entire circuit uses only five resonators and both three-port circuits share four of the five resonators, leading to a compact circuit size and low insertion loss. In synthesis, given bandwidth, in-band return loss and transmission zeros, all coupling coefficients can be determined. For demonstration, a filtering divider and a filtering balun are designed at 2.4 GHz with a bandwidth of 5%. Measured responses of the experimental circuits have good agreement with the simulated data, and this validates the synthesis.
| Original language | English |
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| Title of host publication | Proceedings of the 2019 IEEE Asia-Pacific Microwave Conference, APMC 2019 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1703-1705 |
| Number of pages | 3 |
| ISBN (Electronic) | 9781728135175 |
| DOIs | |
| State | Published - 12 2019 |
| Event | 2019 IEEE Asia-Pacific Microwave Conference, APMC 2019 - Singapore, Singapore Duration: 10 12 2019 → 13 12 2019 |
Publication series
| Name | Asia-Pacific Microwave Conference Proceedings, APMC |
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| Volume | 2019-December |
Conference
| Conference | 2019 IEEE Asia-Pacific Microwave Conference, APMC 2019 |
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| Country/Territory | Singapore |
| City | Singapore |
| Period | 10/12/19 → 13/12/19 |
Bibliographical note
Publisher Copyright:© 2019 IEEE.
Keywords
- Coupling coefficient
- Cross coupling
- Filtering balun
- Filtering divider
- Quadruplet
- Transmission zero