Abstract
A dual-band leaky-wave antenna (LWA) based on substrate-integrated waveguide (SIW) is presented in this letter. The proposed antenna consists of two back-to-back slotted SIW arrays fed by two strip lines, which can realize frequency-controlled scanning beams in two bands. The top SIW slotted array working in the low-frequency band radiates scanning beams in the upper-half free space, and the bottom array for the high-frequency band radiates scanning beams in the lower-half free space. The proposed LWA can radiate scanning beams from near broadside to the endfire in two different bands. The realized gains can get 12.9-17.1 dBi in the low band (8.2-9.4 GHz) and 15.9-20.1 dBi in the high band (13.2-15.2 GHz), respectively. The measured results of the fabricated prototype confirm the design theory and simulated results.
| Original language | English |
|---|---|
| Article number | 8633370 |
| Pages (from-to) | 591-595 |
| Number of pages | 5 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Volume | 18 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2019 |
Keywords
- Dual-band
- leaky-wave antenna (LWA)
- passband
- substrate-integrated waveguide (SIW)
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