Advances in Radio Science
Advances in Radio Science
ARS
Articles | Volume 17
Articles | Volume 17
https://doi.org/10.5194/ars-17-71-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ars-17-71-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17
19 Sep 2019
 | 19 Sep 2019

Design of leaky-wave antennas with transverse slots for end-fire radiation with optimized radiation efficiency

Thomas Vaupel and Claudius Löcker

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Short summary
A substrate integrated waveguide (SIW) replacing a costly rectangular waveguide is used with transverse slots edged in the top cover of the SIW as effective leaky-wave antenna with radiation direction parallel to the antenna (end-fire) until to 60 degree upwards by frequency scanning. The efficiency is optimized by a procedure leading to a 99 per cent efficiency at end-fire. With special feeding and power dividing circuits, a two-branch antenna could be designed with a further improved gain.
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