Journal ArticleDOI
Compact CRLH Leaky-Wave Antenna Using TE 20 -Mode Substrate-Integrated Waveguide for Broad Space Radiation Coverage
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TLDR
In this paper, a composite right/left-handed (CRLH) based four-quadrant dual-beam scanning leaky-wave antenna is proposed and demonstrated using substrate-integrated waveguide (SIW) technology.Abstract:
In this communication, a composite right-/left-handed (CRLH) based four-quadrant dual-beam scanning leaky-wave antenna is proposed and demonstrated using substrate-integrated waveguide (SIW) technology. The simultaneous use of dual-radiating sections of the TE 20-mode SIW makes the structure quite compact with the enhancement in overall gain as compared to the TE 10-mode SIW. In addition to this, the incorporation of interdigital slots on the top as well as the bottom plates of the waveguide enables the feature of CRLH media, resulting in full-space beam scanning. Based on the orientation of the electric field on the guiding structure, the top and bottom slots are orthogonally placed to each other. The unit cell characteristics and space harmonics are thoroughly investigated using the dispersion and Bloch impedance analysis. By tactfully tuning the design parameters, the balanced condition is obtained at the broadside frequency of 11.5 GHz. The radiated dual beam covers a four-quadrant scanning range of 248°, having the beam steering from –75° to 49° for both top and bottom halves of the space. The proposed antenna operates within 10–12.8 GHz with a peak gain of 18 dBi. The designed antenna is finally fabricated and tested, where the simulated responses are found in good agreement with the corresponding measured data.read more
Citations
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SIW Periodic Leaky-Wave Antenna Design for Suppressing the Stopband β0p = π and Open Stopband by Multimode Resonator Concept
Ziwei Li,Kuo Liu,Man Zhao,Jinhui Lin,Yang Wei,Can Tang,Yue Wu,Mengjun Wang,Chao Fan,Hongxing Zheng,Er-Ping Li +10 more
TL;DR: In this article , a substrate integrated waveguide (SIW) periodic leaky-wave antenna is proposed to suppress the stopband β 0p = π and open stopband.
Proceedings ArticleDOI
Beam Scanning One-Dimensional Leaky-Wave Antenna (Invited)
TL;DR: In this article , a CRLH LWA with two different patches is discussed, where a rectangular slot is etched on one patch, and the other patch is shorted to the ground with a via at each edge.
Journal ArticleDOI
A TM<sub>11</sub> High-Order Mode Leaky Wave Antenna
TL;DR: In this paper , a leaky-wave antenna (LWA) with high-order mode was proposed, which achieved a 4.6 times higher gain than the traditional TE10-based LWAs.
Journal ArticleDOI
Electronic Beam Steering Metamaterial Antenna with Dual-Tuned Mode of Liquid Crystal Material
Shuang Ma,Zhanfeng Li,Jun Ding +2 more
TL;DR: In this paper , a dual-tuned mode of liquid crystal (LC) material was proposed and adopted on reconfigurable metamaterial antennas to expand the fixed-frequency beam-steering range.
References
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Journal ArticleDOI
Leaky-Wave Antennas
TL;DR: This paper gives a basic review and a summary of recent developments for leaky-wave antennas (LWAs), a guiding structure that supports wave propagation along the length of the structure, with the wave radiating or “leaking” continuously along the structure.
Journal ArticleDOI
Single-substrate integration technique of planar circuits and waveguide filters
Dominic Deslandes,Ke Wu +1 more
TL;DR: In this article, the authors present new concepts that allow for the complete integration of planar circuits and waveguide filters synthesized on a single substrate by means of metallized post (or via-hole) arrays.
Journal ArticleDOI
Substrate Integrated Waveguide (SIW) Leaky-Wave Antenna With Transverse Slots
TL;DR: In this article, a uniform slotted SIW leaky-wave antenna is designed that has good beam scanning from near broadside (though not exactly at broadside) to forward endfire.
Journal ArticleDOI
Composite Right/Left-Handed Substrate Integrated Waveguide and Half Mode Substrate Integrated Waveguide Leaky-Wave Structures
Yuandan Dong,Tatsuo Itoh +1 more
TL;DR: In this article, the authors proposed a CRLH leaky-wave antenna for antenna applications, which is realized by etching interdigital slots on the waveguide surface and the ground.
Journal ArticleDOI
Millimeter-Wave Substrate Integrated Waveguide Long Slot Leaky-Wave Antennas and Two-Dimensional Multibeam Applications
TL;DR: In this article, two types of substrate integrated waveguide (SIW) long slot leaky-wave antennas with controllable sidelobe level are proposed and demonstrated and demonstrated.
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