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| Content Provider | IET Digital Library |
|---|---|
| Author | Chaturvedi, Divya Kumar, Arvind Raghavan, Singaravelu |
| Abstract | In this study, a wideband half-mode substrate integrated waveguide (HMSIW)-based cavity-backed slot antenna is proposed for Unlicensed National Information Infrastructure (U-NII, 5.180–5.825 GHz) band. To reduce the size of the antenna, an HMSIW backing cavity is used. An epsilon-shaped radiating slot is etched on the top plane of the cavity to achieve a wide −10 dB impedance bandwidth of 13.2% (5.092–5.817 GHz). A planar exponential tapered feeding technique is used to excite the slot. A wideband is realised by coupling of hybrid mode, TM210 mode, and modified TM020 modes at the resonant frequencies of 5.2, 5.5, and 5.8 GHz, respectively. The size of the proposed design including a feeding network is 56 mm × 32 mm (1.4λ g1 × 0.8λ g1). The proposed design is fabricated and experimentally tested. The experimental results show gains of 6.6, 6, and 5.5 dBi and efficiencies of 91, 89, and 87% at the frequencies of 5.2, 5.5, and 5.8 GHz, respectively, with front-to-back ratio better than 15 dB. Moreover, the proposed antenna shows a unidirectional radiation pattern including the advantages of low-profile and lightweight with planar integrity which makes the proposed antenna a favourable candidate for wireless fidelity application. |
| Starting Page | 258 |
| Ending Page | 262 |
| Page Count | 5 |
| ISSN | 17518725 |
| Volume Number | 13 |
| e-ISSN | 17518733 |
| Issue Number | Issue 2, Feb (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/13/2 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2019-01-09 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Antenna Accessory Antenna Feeds Antenna Radiation Pattern Broadband Antenna Directive Antenna Efficiency 87 Percent to 91 Percent Epsilon-shaped Radiating Slot Feeding Network Frequency 5.092 GHz to 5.825 GHz Front-to-back Ratio HMSIW Backing Cavity Hybrid Mode Coupling Microstrip Antenna Modified TM020 Mode Noise Figure 10.0 DB Noise Figure 15.0 DB Planar Antenna Planar Exponential Tapered Feeding Technique Radio Link And Equipment Single Antenna Size 32.0 Mm Size 56.0 Mm Slot Antenna Substrate Integrated Waveguide TM210 Mode U-NII Band Unidirectional Radiation Pattern Unlicensed National Information Infrastructure Band Waveguide And Microwave Transmission Line Wideband Half-mode Substrate Integrated Waveguide-based Cavity-backed Slot Antenna Wideband HMSIW-based Slotted Antenna Wireless Fidelity Application Wireless LAN |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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