eprintid: 3776 rev_number: 15 eprint_status: archive userid: 330 dir: disk0/00/00/37/76 datestamp: 2019-12-12 09:45:43 lastmod: 2019-12-12 09:47:13 status_changed: 2019-12-12 09:45:43 type: article metadata_visibility: show creators_name: Nguyen, Dinh The Anh creators_name: Hoang, Duc Long creators_name: Bach, Gia Duong creators_name: Dancila, Dragos creators_id: ndtanh@vnsc.org.vn creators_id: longhd@vnu.edu.vn creators_id: duongbg@vnu.edu.vn corp_creators: Nguyen Dinh The Anh corp_creators: Hoang Duc Long corp_creators: Bach Gia Duong corp_creators: Dragos Dancila title: A design of wideband high-power 3-dB quadrature coupler using defected ground structure for status data transmitting system ispublished: pub subjects: Communications subjects: ElectronicsandComputerEngineering subjects: Scopus divisions: cetr_uet 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. date: 2020-02 date_type: published publisher: Indonesia id_number: DOI: 10.11591/eei.v9i1.1699 full_text_status: public publication: BEEI volume: Vol 9 number: No1 pagerange: ppxx-ppxx refereed: TRUE issn: 2302-9285 related_url_type: author citation: 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 document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3776/1/BEEI.pdf