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| Content Provider | IET Digital Library |
|---|---|
| Author | Niu, Bing Jian Tan, Jie Hong He, Chun Long |
| Abstract | A dual-band antenna with good stopband characteristics is proposed. Different from conventional antennas, two transverse slots are etched on a substrate integrated waveguide (SIW) cavity. Two half modes are excited to achieve a dual-band operation and two non-radiating modes, a TE110 mode and an even TE120 mode, are induced to generate radiation nulls. With the aid of the two radiation nulls, the stopband characteristics of the proposed design including non-radiating gain and band-edge selectivity are significantly improved. A fabricated prototype is measured. The measured centred frequency of two passbands is at 3.28 and 3.77 GHz, respectively. The maximum gain is about 5.2 dBi in the passbands while the minimum gain is only −18.9 dBi in the stopband. The measured efficiency is 86% in the lower passband and 75% in the upper passband but it sharply decreases to lower than 5% between 3.36–3.7 GHz. |
| Starting Page | 1259 |
| Ending Page | 1260 |
| Page Count | 2 |
| ISSN | 00135194 |
| Volume Number | 54 |
| e-ISSN | 1350911X |
| Issue Number | Issue 22, Nov (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/54/22 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2018.6681 |
| Journal | Electronics Letters |
| Publisher Date | 2018-09-25 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Antenna Radiation Pattern Band-edge Selectivity Dual-band Operation Efficiency 75 Percent Efficiency 86 Percent Frequency 3.28 GHz Frequency 3.36 GHz to 3.7 GHz Frequency 3.77 GHz Good Stopband Characteristic Half Mode Measured Centred Frequency Multifrequency Antenna Nonradiating Gain Nonradiating Mode Radiation Nulls Single Antenna SIW Cavity-backed Dual-band Antenna Slot Antenna Substrate Integrated Waveguide Substrate Integrated Waveguide Cavity TE110 Mode TE120 Mode Transverse Slot Waveguide And Microwave Transmission Line |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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