Reflection coefficient of a flanged rectangular waveguide radiating into a dielectric slab

2002 ◽  
Vol 35 (5) ◽  
pp. 401-404 ◽  
Author(s):  
Mi Y. Park ◽  
Hyo J. Eom
Keyword(s):  
Reflection Coefficient ◽  
Rectangular Waveguide ◽  
Dielectric Slab

scholarly journals Dual-Band Notch Filter Based on Twist Split Ring Resonators

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Haibin Sun ◽  
Cai Feng ◽  
Yongjun Huang ◽  
Ruiming Wen ◽  
Jian Li ◽  
...  
Keyword(s):  
Rectangular Waveguide ◽  
Notch Filter ◽  
Ring Resonators ◽  
Dual Band ◽  
Dielectric Slab ◽  
Split Ring ◽  
Resonance States ◽  
Split Ring Resonators ◽  
Resonance Frequencies ◽  
Two Sides

A novel dual-band rectangular waveguide notch filter is experimentally investigated in this paper. Such filter is realized by integrating two pairs of split ring resonators (SRRs) printed on the two sides of a dielectric slab with twist angles and separated as a distance in the center of the rectangular waveguide. Due to the coupling effects between the twist SRRs and between the original SRRs and their mirror images generated by the metallic walls perpendicular to the E-field direction, it can flexibly contribute two disjunct resonance states and result in the dual-band notch properties. Furthermore, the two resonance frequencies can be controlled by changing the twist angles, resulting in the shifts of notch frequency bands.

Propagation in Dielectric Slab Loaded Rectangular Waveguide

1958 ◽  
Vol 6 (2) ◽  
pp. 215-222 ◽  
Author(s):  
W.P. Ayres ◽  
P.H. Vartanian ◽  
A.L. Helgesson
Keyword(s):  
Rectangular Waveguide ◽  
Dielectric Slab

A Magnetic-Controlled Detection System for Radar Absorbing Coatings

2013 ◽  
Vol 718-720 ◽  
pp. 393-398 ◽  
Author(s):  
Jian Hua Zhou ◽  
Li Xia Huo ◽  
Wei Wen Li ◽  
Bai Qiang You ◽  
Yan Long Li ◽  
...  
Keyword(s):  
Reflection Coefficient ◽  
Rectangular Waveguide ◽  
Detection System ◽  
Solenoid Coil ◽  
Test Fixture ◽  
Field Patterns ◽  
Ku Band

A magnetic-controlled detection system, with a rectangular solenoid coil in a waveguide test fixture, is proposed for radar absorbing coatings. By applying Ku-band rectangular waveguide, the field patterns at different positions, the reflection coefficient S11 and its variation of several coating samples are simulated and measured under current loaded from 0 to 1.0 A. The results show that this detection system is repeatable and stable, and also reliable with the error of less than 10%.

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