Nguyen, Dinh The Anh and Hoang, Duc Long and Bach, Gia Duong and Dancila, Dragos (2020) A design of wideband high-power 3-dB quadrature coupler using defected ground structure for status data transmitting system. BEEI, Vol 9 (No1). ppxx-ppxx. ISSN 2302-9285
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Abstract
The paper presents a wideband 3-dB quadrature coupler designed for operation at 2 GHz. The presented coupler is based on a broadside-coupled suspended structure in combination with a proposed defected ground structure (DGS) allowing for high power, wide-band and improved harmonic suppression performance. The experimental results show 0.2 dB of insertion loss, return loss of better than 18 dB and isolation of better than 25 dB in the frequency range from 1.74 to 2.67 GHz. The proposed coupler is able to be integrated in the status data transmitting system, which is suitable for vessel monitoring. The fundamental characteristics of the implemented coupler have been measured and verified.
| Item Type: | Article |
|---|---|
| Subjects: | Electronics and Communications > Communications Electronics and Communications > Electronics and Computer Engineering Scopus-indexed journals |
| Divisions: | Center for Electronics and Telecommunications Research (CETR) |
| Depositing User: | Bạch Gia Dương |
| Date Deposited: | 12 Dec 2019 09:45 |
| Last Modified: | 12 Dec 2019 09:47 |
| URI: | http://eprints.uet.vnu.edu.vn/eprints/id/eprint/3776 |
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