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| Content Provider | IET Digital Library |
|---|---|
| Author | Wu, Jiangniu Zhao, Zhiqin Ellis, Mubarak Sani Nie, Zaiping Liu, Qing Huo |
| Abstract | In this study, a printed stepped open-slot antenna with unidirectional radiation characteristics is presented. Using a stepped feeding slot and a parasitic metal strip, the impedance matching is improved and a wide bandwidth is achieved. Additionally, by modifying the ground plane with a pair of L-shaped slots, the radiation directivity of the proposed antenna is significantly enhanced and good unidirectional radiation characteristics are obtained. To demonstrate the effectiveness of the design, a prototype antenna is fabricated and tested. Experimental results show that the antenna provides a fractional bandwidth of 101%, ranging from 3.65 to 11.1 GHz with a compact size (30 mm × 30 mm). A moderate gain, which is better than 4 dBi, is also obtained. In addition, a stable radiation directivity, which is fixed in the endfire direction (y-axis direction) is achieved. The measured front-to-back ratio is larger than 9.5 dB within the effective bandwidth. |
| Starting Page | 465 |
| Ending Page | 473 |
| Page Count | 9 |
| ISSN | 17518725 |
| Volume Number | 8 |
| e-ISSN | 17518733 |
| Issue Number | Issue 7, May (2014) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/8/7 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2013.0304 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2014-01-08 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Antenna Accessory Antenna Feeds Antenna Radiation Pattern Directive Antenna Endfire Direction Enhanced Directivity Frequency 3.65 GHz to 11.1 GHz Front-to-back Ratio Impedance Matching L-shaped Slot Microstrip Antenna Parasitic Metal Strip Printed Stepped Open-slot Antenna Radiation Directivity Single Antenna Slot Antenna Stepped Feeding Slot Unidirectional Radiation Characteristic Wide Bandwidth Y-axis Direction |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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