Abstract
Novel continuous backward-to-forward beam-scanning leaky-wave antennas (LWAs) are designed using a 1-D mushroom structure. An effective method is proposed to suppress the bandgap of a mushroom structure. A smooth transition between the backward and forward leaky modes is achievable by choosing a suitable value of the via inductance, and hence the antenna has design flexibility. The study starts from an equivalent circuit of a unit cell and is verified through simulation and measurement. The measured results confirm a continuous 126° beam scan, starting from -60°, with less than 3 dB gain variation. Moreover, the measured 3dB gain bandwidth is over 58%, which is better than most of the reported LWAs.
Original language | English |
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Title of host publication | 2018 International Symposium on Antennas and Propagation (ISAP) |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Number of pages | 2 |
ISBN (Electronic) | 9788957083048, 9788957082973 |
ISBN (Print) | 9781538653890 |
Publication status | Published - 2018 |
Externally published | Yes |
Event | 2018 International Symposium on Antennas and Propagation, ISAP 2018 - Busan, Korea, Republic of Duration: 23 Oct 2018 → 26 Oct 2018 |
Conference
Conference | 2018 International Symposium on Antennas and Propagation, ISAP 2018 |
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Country/Territory | Korea, Republic of |
City | Busan |
Period | 23/10/18 → 26/10/18 |