A Circularly Polarized Broadside Radiating “Herringbone” Array Design With the Leaky-Wave Approach
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A series-fed “herringbone” microstrip traveling wavecircularly polarized antenna array is designed to achieve broadsideradiation. It is shown that such an antenna can be modeledas a periodic leaky-wave (LW) structure, providing insight into radiationcharacteristics of interest, such as the directivity and beamangle of the structure, particularly at broadside. Full-wave simulationsas well as a prototype of the design verified the approach. Theextracted leaky-wave number properly predicts the behavior seenin radiation measurements, and no degradation in antenna gain isseen at or near broadside.
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Sutinjo, Adrian; Okoniewski, M.; Johnston, R. (2008)This article presents an overview of the radiation from fast and slow traveling waves. The goal is to describe the mechanisms that give rise to the radiation in a leaky-wave antenna (LWA). An infinite aperture distribution ...
Sutinjo, Adrian; Okoniewski, M. (2010)We present a method of exciting a surface wave based hologram using a traveling-wave microstrip patch array to achieve broadside radiation. This holographic antenna may also be viewed as a periodic surface wave based ...
Sutinjo, Adrian; Okoniewski, M.; Johnston, R. (2008)The effects of measuring a symmetric broadside leakywave antenna (LWA) at finite distances are examined. In particular,the broadside beam behavior near the beam splitting conditionis studied since the directivity error ...