Publisher DOI: 10.1109/TMTT.2018.2818149
Title: Substrate Integrated Waveguide Leaky-Wave Antenna with Wide Bandwidth via Prism Coupling
Language: English
Authors: Wang, Lei 
Gomez-Tornero, Jose Luis 
Quevedo-Teruel, Oscar 
Issue Date: Jun-2018
Source: IEEE Transactions on Microwave Theory and Techniques 6 (66): 3110-3118 (2018-06)
Journal or Series Name: IEEE transactions on microwave theory and techniques 
Abstract (english): New communications systems require high-speed data transfer and need high frequency, wideband, and directive antennas. Leaky-wave antennas are a desirable type of antennas for millimeter and submillimeter waves, since they can produce a high directive radiation with a single feeding. The latter is an enormous advantage to reducing the cost and losses at high frequency. Despite these advantages, their dispersive nature inherently produces a beam squint effect in their radiation patterns. Here, we propose the use of a lens that compensates for the dispersion of the leaky wave, making the overall antenna broadband. This concept is demonstrated in substrate integrated waveguide technology at Ka-band, and the lens is integrated in the same technology. Full-wave simulations and experimental results are presented to demonstrate the potential of our proposal. Our manufactured prototype has more than 20% frequency bandwidth for the 3-dB pattern at 31 , and the main radiating direction steers only ±0.5° from 35 to 40 GHz with a half-power beamwidth of 8°.
URI: http://hdl.handle.net/11420/2714
ISSN: 0018-9480
Institute: Theoretische Elektrotechnik E-18 
Type: (wissenschaftlicher) Artikel
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