A modal expansion theory for the microstrip antenna

2005 ◽  
Author(s):  
K. Carver
Keyword(s):  
Microstrip Antenna ◽  
Modal Expansion ◽  
Expansion Theory

Analysis of Metamaterial Walls Reverberation Chamber by Using Modal Expansion Theory

2021 ◽  
Author(s):  
Jeudy Kean ◽  
Nathalie Raveu ◽  
Hamza Kaouach ◽  
Kosorl Thourn ◽  
Sokchenda Sreng
Keyword(s):  
Reverberation Chamber ◽  
Modal Expansion ◽  
Expansion Theory

scholarly journals THE MODAL EXPANSION THEORY APPLIED TO 3-D METAMATERIAL WAVEGUIDES CHARACTERIZATION

2020 ◽  
Vol 92 ◽  
pp. 31-41 ◽  
Author(s):  
Lucille Kuhler ◽  
Nathalie Raveu ◽  
Gwenn Le Fur ◽  
Luc Duchesne
Keyword(s):  
Modal Expansion ◽  
Expansion Theory

Modal expansion method of analysis for slot-coupled microstrip antenna

1989 ◽  
Vol 25 (20) ◽  
pp. 1338 ◽  
Author(s):  
A. Ittipiboon ◽  
R. Oostlander ◽  
Y.M.M. Antar
Keyword(s):  
Microstrip Antenna ◽  
Expansion Method ◽  
Modal Expansion ◽  
Modal Expansion Method

A modal expansion method of analysis and measurement on aperture-coupled microstrip antenna

1991 ◽  
Vol 39 (11) ◽  
pp. 1567-1574 ◽  
Author(s):  
A. Ittipiboon ◽  
R. Oostlander ◽  
Y.M.M. Antar ◽  
M. Cuhaci
Keyword(s):  
Microstrip Antenna ◽  
Expansion Method ◽  
Modal Expansion ◽  
Modal Expansion Method

Dynamic Responses of Beams with a Flexible Support Under a Constant Speed Moving Load

2008 ◽  
Vol 24 (2) ◽  
pp. 195-204 ◽  
Author(s):  
H.-P. Lin
Keyword(s):  
Moving Load ◽  
Beam Theory ◽  
Constant Speed ◽  
Dynamic Responses ◽  
Entire System ◽  
Modal Expansion ◽  
Flexible Support ◽  
Expansion Theory ◽  
Forced Responses ◽  
Euler Bernoulli Beam

ABSTRACTThis paper deals with the linear dynamic responses of beams with a flexible support under a moving load with a constant speed. The entire system is modeled as a two-span beam and each span of the continuous beams is assumed to obey the Euler-Bernoulli beam theory. Considering the compatibility requirements on the flexible constraint, the relationships between two segments can be obtained. By using a transfer matrix method, the characteristic equation of the entire system can then be determined. The forced responses of the system under a moving load can then be obtained through modal expansion theory. Some numerical results are presented to the effects of support stiffness and the different speeds of the moving load.

Wideband and compact slot loaded annular ring microstrip antenna using L-probe proximity-feed for wireless communications

2015 ◽  
Vol 8 (7) ◽  
pp. 1085-1093 ◽  
Author(s):  
Anil Kumar Singh ◽  
Ravi Kumar Gangwar ◽  
Binod K. Kanaujia
Keyword(s):  
Microstrip Antenna ◽  
Impedance Bandwidth ◽  
Theory Approach ◽  
Cavity Model ◽  
Modal Expansion ◽  
Annular Ring ◽  
Ansoft Hfss ◽  
Thick Substrate ◽  
Theoretical Results ◽  
Good Agreement

A wideband orthogonally slot cut annular ring microstrip antenna fed by L-shaped probe is investigated using modal expansion cavity model and circuit theory approach. Simulation of the proposed antenna is performed using Ansoft HFSS and simulated results are compared with the measured and theoretical results. The impedance bandwidth of about 37.46% is observed at resonant frequency 3.15 GHz. The proposed antenna realizes an improvement in bandwidth of 13.46% and miniaturization in physical dimension about 10% from earlier reported structures. An improvement in bandwidth and miniaturization is due to thick substrate, L-probe feed, and orthogonally loaded slots. The measured results of fabricated antennas are in good agreement with simulated and theoretical results.

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