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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Journal ArticleDOI
Mathematical Analysis of a Modified Closed-Form Formula for Design a Uniform Leaky-Wave Antenna With Ultra-Low SLL.
TL;DR: The theory to analyze and design tapered leaky-wave antennas is described and it is shown that the theory of control of the aperture distribution to reduce side-lobes may not be good enough to achieve ultra-low side lobes.
Modeling and Realization of Cavity-Backed Dual Band SIW Antenna
TL;DR: In this paper, a dual-band microstrip patch antenna design with a modified microstrip cavity-backed antenna and a defected ground structure is proposed for 2.4 and 5.6 GHz applications.
Proceedings ArticleDOI
Holographic antenna with antipodal feed for frequency-scanning radar
TL;DR: In this paper, a frequency-scanning radar in LTCC is presented with a holographic antenna with a beam scanning of 30° and a maximum measured gain of 14.5 dBi.
Journal ArticleDOI
A Novel SIW Leaky-Wave Antenna for Continuous Beam Scanning from Backward to Forward
TL;DR: In this paper , a leaky-wave antenna using substrate-integrated waveguide (SIW) technology is proposed for continuous beam scanning applications, which can radiate from backward to forward through the broadside.
Journal ArticleDOI
Design of a Compact Omnidirectional Leaky-Wave Antenna Fed by Higher Order Mode
TL;DR: In this article , a dielectric-filled rectangular waveguide (RWG) was used for a leaky-wave antenna (LWA) with a higher-order mode.
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.