Chinese Physics B, Volume. 29, Issue 9, (2020)
Spoof surface plasmon polaritons excited leaky-wave antenna with continuous scanning range from endfire to forward
Figures & Tables(10)
Fig. 1. Configurations of the proposed LWA based on SSPPs excitation transmission line. (a) Top view of proposed LWA. (b) Details of the feeding and transiting part. (c) Details of the radiating part. (d) Unit cell of transmission line.
Fig. 2. The electromagnetic model of the transmission line unit cell in simulated condition.
Fig. 3. Dispersion diagram of SSPPs transmission line unit cell with varying structural parameters.
Fig. 4. Surface current distributions of the two fundamental modes: (a) 1st mode, (b) 2nd mode.
Fig. 6. The simulated and measured
Fig. 7. The simulated and measured normalized radiation patterns of the proposed LWA: (a) 4 GHz, (b) 5 GHz, (c) 6 GHz, (d) 7 GHz, (e) 8 GHz, (f) 9 GHz, (g) 10 GHz.
Fig. 8. The simulated and measured beam direction angle and realized gain of the proposed LWA.
Table 1. Parameters values for the unit cell in unit mm.
View tableView in ArticleTable 1. Parameters values for the unit cell in unit mm.
Parameters pu wg wt ws lt Value/mm 4.4 2.8 1 1.2 2.3
Table 2. Performances comparing between the LWA and previous works.
View tableView in ArticleTable 2. Performances comparing between the LWA and previous works.
Works Antenna type Length/mm Operating frequency/GHz Scanning range/(°) Ref. [ 7 ]QMSIW 230 8.9 to 11.8 – 43 to 32 Ref. [ 8 ]Goubau-line 292 9.0 to 13 – 13.1 to 19.1 Ref. [ 9 ]Microstrip line 171 10.7 to 17 – 78 to 27 Ref. [ 17 ]SSPPs 297 8.8 to 10.7 4.8 to 37.2 Ref. [ 18 ]SSPPs 320 5 to 11 – 45 to 10 Ref. [ 20 ]HMSIW 46 55 to 65 – 72 to 48 This work SSPPs 365 4.0 to 10 90 to 20
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Tao Zhong, Hou Zhang. Spoof surface plasmon polaritons excited leaky-wave antenna with continuous scanning range from endfire to forward[J]. Chinese Physics B, 2020, 29(9):
Paper Information
Received: May. 23, 2020
Accepted: --
Published Online: Apr. 29, 2021
The Author Email: Zhong Tao (ztbull@126.com)
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