A Collimated Surface-Wave-Excited High-Impedance Surface Leaky-Wave Antenna
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
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Detail(s)
| Original language | English |
|---|---|
| Article number | 7906485 |
| Pages (from-to) | 2082-2085 |
| Journal / Publication | IEEE Antennas and Wireless Propagation Letters |
| Volume | 16 |
| Online published | 24 Apr 2017 |
| Publication status | Published - 2017 |
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Abstract
This letter presents a novel high-impedance surface (HIS)-based leaky-wave antenna excited by collimated surface wave (SW). The proposed antenna consists of two identical SW launchers (SWLs) and an HIS structure. Regarding the SWL, it is based on an offset-fed parabolic reflector. By using the substrateintegrated
waveguide technique, the reflector system is integrated in the planar substrate. For the HIS, it is formed by a periodically arranged rectangular microstrip patch array. The proposed SWL can generate collimated SW with the TM0 propagation
mode. With the perturbation of the HIS, the guided SW can be transformed to m = −1 space-harmonic-mode leaky wave. In addition, in order to obtain efficient broadside radiation, an additional secondary slit is properly designed in each unit cell of the HIS to suppress the open-stopband effect. A prototype of the proposed antenna is demonstrated by both full-wave simulation and
experimental verification. Continuous beam scan can be realized from −36◦ to +35.5◦ within the frequency range of 16–22 GHz.
waveguide technique, the reflector system is integrated in the planar substrate. For the HIS, it is formed by a periodically arranged rectangular microstrip patch array. The proposed SWL can generate collimated SW with the TM0 propagation
mode. With the perturbation of the HIS, the guided SW can be transformed to m = −1 space-harmonic-mode leaky wave. In addition, in order to obtain efficient broadside radiation, an additional secondary slit is properly designed in each unit cell of the HIS to suppress the open-stopband effect. A prototype of the proposed antenna is demonstrated by both full-wave simulation and
experimental verification. Continuous beam scan can be realized from −36◦ to +35.5◦ within the frequency range of 16–22 GHz.
Research Area(s)
- Collimated wave, high-impedance surface (HIS), leaky wave, surface wave (SW)
Citation Format(s)
A Collimated Surface-Wave-Excited High-Impedance Surface Leaky-Wave Antenna. / Ma, Zi Long; CHAN, Chi Hou; Ng, Kung Bo et al.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 16, 7906485, 2017, p. 2082-2085.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
