Abstract
A novel technique to increase the pattern bandwidth of substrate-integrated waveguide leaky-wave antennas (SIW LWAs) is proposed. By coupling several SIWs, it is shown that the gain at the desired angle can be kept stable across a wide-frequency band. A systematic design methodology based on a simple transverse equivalent network is presented. Practical coupled-SIW designs with gain exceeding 10 dB and pointing at 30° in the 15-GHz band are reported to validate the theory. Simulation and experimental results demonstrate an enhancement of the half-power gain bandwidth from 2.5% (380 MHz) in the single-SIW design to 9% (1360 MHz) for an LWA composed of three coupled SIWs.
Original language | English |
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Pages (from-to) | 3099-3109 |
Number of pages | 11 |
Journal | IEEE Transactions on Microwave Theory and Techniques |
Volume | 66 |
Issue number | 6 |
Early online date | 9 May 2018 |
DOIs | |
Publication status | Published - Jun 2018 |
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Dive into the research topics of 'Coupling Substrate-Integrated Waveguides to Increase the Gain Bandwidth of Leaky-Wave Antennas'. Together they form a unique fingerprint.Profiles
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George Goussetis
- School of Engineering & Physical Sciences - Professor
- School of Engineering & Physical Sciences, Institute of Sensors, Signals & Systems - Professor
Person: Academic (Research & Teaching)