نتایج جستجو برای: rectangular waveguide

تعداد نتایج: 38844  

Journal: :IEEE Transactions on Antennas and Propagation 2023

This work seeks a novel design for compact leaky-wave array antenna high-power microwave (HPM) applications. The is made of rectangular waveguide with closely spaced non-resonant slots in the broad-wall waveguide. By this means, more can be set within unit length and less energy will radiate from each slot, then higher power-handling capacity achieved. An L-band centered at 1.57 GHz designed ex...

Journal: :Optics and Spectroscopy 2022

Volumetric integral and integro-differential equations are considered that describe problems of diffraction by three-dimensional bodies with given macroscopic permittivity magnetic permeability, as well on free vibrations such bodies. Similar obtained for waveguide structures: hollow shielded waveguides dielectric filling, (optical beamguides), photonic-crystal waveguides. Dominantly stationary...

2005
Mikio TSUJI Hiroyuki DEGUCHI Hiroshi SHIGESAWA

1. Introduction Leaky-wave antennas based on an open-waveguide structure without partly physical cut become a candidate of millimeter-wave antennas because asymmetry of the structure can easily produce a radiation along its length due to a leaky mode. One of these open waveguides for antenna purposes is the stub-loaded ridge-rectangular waveguide, which consists of a ridge-rectangular waveguide...

2010
K. J. Nicholson

Slotted Waveguide Antenna Stiffened Structure (SWASS) is a type of conformal load-bearing antenna where top-hat cross-section stiffeners on skins, or blade stiffeners in sandwich panels, serve the dual purpose of acting both as structural stiffeners and as waveguides. Cutting slots through the outer skin and into these waveguide stiffeners creates slotted waveguide antenna arrays. Two of the ke...

2002
J. W. Kooi G. Chattopadhyay F. Rice J. Zmuidzinas S. Withington G. Yassin

Excellent progress in the development of Submillimeter-wave SIS and HEBmixers has been demonstrated in recent years. At frequencies below 800 GHz these mixers are typically implemented using waveguide techniques, while above 800 GHz quasi-optical (open structure) methods are often used. The choice of waveguide offers several advantages over quasi-optical techniques, such as the use of broadband...

Journal: :Applied Physics Express 2022

Abstract We developed a novel terahertz-wave detector fabricated on SiC platform implementing an InP/InGaAs Fermi-level managed barrier (FMB) diode. The FMB diode epi-layers were transferred substrate, and waveguide coupler filters monolithically integrated with Then, the chip was assembled in fundamental mixer module WR-3 rectangular-waveguide-input port. It exhibited minimum noise equivalent ...

Journal: :Applied Acoustics 2021

This paper presents a way to obtain angle-dependent reflection, transmission and absorption coefficients of sample based on the modal decomposition method in rectangular waveguide. Microphone locations are optimized ensure that can be applied. The is subsequently validated both numerically experimentally.

Journal: :Journal of the Korean Society of Tribologists and Lubrication Engineers 2011

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