Single-Side-Scanning Surface Waveguide Leaky-Wave Antenna Using Spoof Surface Plasmon Excitation | Zendy

Shangkun Ge | Zendy; Qingfeng Zhang | Zendy; Chi-Yuk Chiu | Zendy; Yifan Chen | Zendy; Ross D. Murch | Zendy

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Single-Side-Scanning Surface Waveguide Leaky-Wave Antenna Using Spoof Surface Plasmon Excitation

Author(s) -

Shangkun Ge,

Qingfeng Zhang,

Chi-Yuk Chiu,

Yifan Chen,

Ross D. Murch

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2879086

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

A surface waveguide (SWG) leaky-wave antenna featuring directional single-side beam scanning capability is presented. A novelty of the design is that transition design utilizes the spoof surface plasmon (SSP) as an intermedia to feed the SWG, which realizes an efficient SWG transition from the conventional coplanar waveguide. In addition, a novel spatial profile is modulated on the SWG to produce leaky-wave radiation. Because the transmission modes in SSP and SWG are similar, the transition exhibits low loss and broadband performance. Both the transition and the leaky-wave antenna are demonstrated using simulations and experiments. It is shown that the transition has an average loss of 0.61 dB across the frequency range 5–13 GHz, which is an improvement on other feeding techniques reported. It is also shown that the leaky-wave antenna produces a single-side scanning beam of 8.7 dB gain with an overall efficiency of 75%. The beam scans through a 43.5-degree range over the frequency 10–13 GHz.

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