Journal ArticleDOI
Substrate Integrated Waveguide (SIW) Leaky-Wave Antenna With Transverse Slots
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TLDR
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.Abstract:
A novel slotted substrate integrated waveguide (SIW) leaky-wave antenna is proposed. This antenna works in the TE10 mode of the SIW. Leakage is obtained by introducing a periodic set of transverse slots on the top of the SIW, which interrupt the current flow on the top wall. It is seen that three modes (a leaky mode, a proper waveguide mode, and a surface-wave-like mode) can all propagate on this structure. The wavenumbers of the modes are calculated theoretically and are numerically evaluated by HFSS simulation. The leakage loss, dielectric loss, and conductor loss are also analyzed. 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. This type of SIW leaky-wave antenna has a wide impedance bandwidth and a narrow beam that scans with frequency. Measured results are consistent with the simulation and the theoretical analysis.read more
Citations
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Proceedings ArticleDOI
Design investigation of a leaky wave antenna using HMSIW technique
TL;DR: Results show that the proposed antenna has the advantages of wide band width and high gain in addition to low profile, low fabrication cost, low weight and its common features including high directivity and beam steering capability which make it suitable for millimeter-wave applications.
Journal ArticleDOI
Reconfigurable beam-steerable leaky-wave antenna loaded with metamaterial apertures using liquid crystal-based delay lines.
TL;DR: An original liquid crystal-based substrate integrated waveguide (SIW) leaky-wave antenna is proposed in this paper , which couples the guided quasi-TEM mode into free space through a periodic set of complementary electric inductive-capacitive (cELC) resonators.
Journal ArticleDOI
Archimedean Spiral Slotted Leaky-Wave Antenna
TL;DR: In this paper , a leaky-wave antenna (LWA) with Archimedean spiral slots is proposed for realizing high radiation efficiency and stable gain performance in both frequency-controlled and fixed-frequency beam-scanning applications.
Journal ArticleDOI
Input impedance and radiation pattern of a resonant dipole embedded in a two-dimensional periodic leaky-wave structure
Ahmad Bakhtafrouz,Amir Borji +1 more
TL;DR: In this paper, an array scanning method was employed to study the input impedance and radiation pattern of a two-dimensional periodic leaky-wave antenna (LWA) with a narrow horizontal strip dipole of arbitrary length underneath a 2D periodic screen of metallic patches.
Journal ArticleDOI
Asymmetric Endfire Frequency Scanning Tapered Slot Antenna with Spoof Surface Plasmon Polaritons
TL;DR: In this paper , an end-fire frequency scanning tapered slot antenna (FSTSA) is proposed and investigated, which is a two-conductor structure with a gradient slots array etched only on one of two inner edges.
References
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Book
Antenna theory and design
TL;DR: The CEM for Antennas: Finite Difference Time Domain Method (FDTDM) as mentioned in this paper is a CEM-based method for measuring the time domain of an antenna.
Journal ArticleDOI
Integrated microstrip and rectangular waveguide in planar form
Dominic Deslandes,Ke Wu +1 more
TL;DR: In this paper, a planar platform is developed in which the microstrip line and rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple taper.
Journal ArticleDOI
Guided-wave and leakage characteristics of substrate integrated waveguide
TL;DR: In this article, a numerical multimode calibration procedure is proposed and developed with a commercial software package on the basis of a full-wave finite-element method for the accurate extraction of complex propagation constants of the SIW structure.
Journal ArticleDOI
Dispersion characteristics of substrate integrated rectangular waveguide
TL;DR: In this paper, the dispersion properties of the substrate integrated rectangular waveguide (SIRW) were rigorously obtained using the BI-RME method combined with the Floquet's theorem.
Journal ArticleDOI
Accurate modeling, wave mechanisms, and design considerations of a substrate integrated waveguide
Dominic Deslandes,Ke Wu +1 more
TL;DR: In this article, a new method of analysis is presented for the determination of complex propagation constants in substrate integrated waveguides (SIWs) by making use of the concept of surface impedance to model the rows of conducting cylinders, and the proposed model is then solved by combining a method of moments and a transverse resonance procedure.