DIPOLE ANTENNA WITH LEFT-HANDED LOADING OPERATING AT A ZERO ORDER MODE

2011 ◽  
Vol 19 ◽  
pp. 85-92 ◽  
Author(s):  
Alejandro Lucas Borja ◽  
James R. Kelly ◽  
Qing Liu ◽  
Peter S. Hall ◽  
Zhen Hua Hu
Keyword(s):  
Dipole Antenna ◽  
Zero Order ◽  
Order Mode ◽  
Left Handed

Dispersion Characteristic of the Symmetric Slab Waveguide with Chiral Negative Refractive Medium

2014 ◽  
Vol 571-572 ◽  
pp. 915-919
Author(s):  
Xiao Xue Xu ◽  
Zhong Yin Xiao ◽  
Quan Wen Ma ◽  
Xiao Long Ma ◽  
De Jun Liu ◽  
...  
Keyword(s):  
Maxwell Equations ◽  
Dispersion Characteristic ◽  
Constitutive Relations ◽  
Great Influence ◽  
Zero Order ◽  
Slab Waveguide ◽  
Order Mode ◽  
The Core ◽  
Left Handed ◽  
Refractive Medium

According to Maxwell equations and constitutive relations in chiral medium, the dispersion characteristic of the symmetric slab waveguide with chiral negative refractive medium is studied. The dispersion equations expressed in the normalized parameter are deduced in the slab waveguide. The numerical results show that the chiral parameter has great influence on the dispersion characteristic of slab waveguide. When the relative chiral parameter is about 0.0477, the zero order mode of left-handed polarized wave disappears. While it is greater than 1, the core becomes chiral negative refractive medium and the zero order mode disappears. In addition, compared with the general chiral waveguide, the tendency of dispersion curves in slab waveguide with chiral negative refractive medium is also analyzed.

scholarly journals Experimental verification of zero order bandgap in a layered stack of left-handed and right-handed materials

2006 ◽  
Vol 14 (6) ◽  
pp. 2220 ◽  
Author(s):  
Yu Yuan ◽  
Lixin Ran ◽  
Jiangtao Huangfu ◽  
Hongsheng Chen ◽  
Linfang Shen ◽  
...  
Keyword(s):  
Experimental Verification ◽  
Zero Order ◽  
Left Handed

scholarly journals Locating Delamination in Composite Laminated Beams Using the Zero-Order Mode of Lamb Waves

10.5772/49991 ◽  
2012 ◽  
Author(s):  
Yaolu Liu ◽  
Alamusi ◽  
Jinhua Li ◽  
Huiming Ning ◽  
Liangke Wu ◽  
...  
Keyword(s):  
Lamb Waves ◽  
Zero Order ◽  
Order Mode ◽  
Laminated Beams

Wideband dipole antenna using multi-mode resonance concept

2015 ◽  
Vol 9 (2) ◽  
pp. 365-371 ◽  
Author(s):  
Wen-Jun Lu ◽  
Lei Zhu ◽  
Kam Weng Tam ◽  
Hong-Bo Zhu
Keyword(s):  
Current Distribution ◽  
Dipole Antenna ◽  
Design Approach ◽  
Order Mode ◽  
Single Center ◽  
Dipole Antennas ◽  
Odd Order ◽  
Multi Mode

Wideband dipole antennas are proposed using the multi-mode resonance concept. By symmetrically introducing one-pair or two-pair of stubs at the nulls of current distribution of the second odd-order mode, two radiation modes are excited in a single, center-fed dipole resonator. Using these stubs, the second odd-order mode gradually moves down to its first counterpart, resulting to achieve a wideband radiation with two resonances. Prototype antennas are then fabricated to experimentally validate the design approach. Compared with a reference dipole with a bandwidth of 17%, the proposed dipole's bandwidth can be effectively increased to 49.7%.

A novel composite right/left-handed transmission line with zero-order resonant frequency

2009 ◽  
Vol 51 (6) ◽  
pp. 1592-1595 ◽  
Author(s):  
Ya-Nan Zhang ◽  
Di Wu ◽  
Hongbo Zhu ◽  
Bing-Hui Chen
Keyword(s):  
Resonant Frequency ◽  
Transmission Line ◽  
Zero Order ◽  
Left Handed

scholarly journals A Fully-Printed CRLH Dual-Band Dipole Antenna Fed by a Compact CRLH Dual-Band Balun

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4991
Author(s):  
Muhammad Kamran Khattak ◽  
Changhyeong Lee ◽  
Heejun Park ◽  
Sungtek Kahng
Keyword(s):  
Transmission Line ◽  
Mobile Applications ◽  
Phase Shifter ◽  
Design Method ◽  
Dipole Antenna ◽  
Dual Band ◽  
Dispersion Diagram ◽  
Left Handed ◽  
Lumped Elements ◽  
Hybrid Coupler

In this paper, a new design method is proposed for a planar and compact dual-band dipole antenna. The dipole antenna has arms as a hybrid CRLH (Composite right- and left-handed) transmission-line comprising distributed and lumped elements for the dual-band function. The two arms are fed by the outputs of a compact and printed CRLH dual-band balun which consists of a CRLH hybrid coupler and an additional CRLH phase-shifter. Its operational frequencies are 2.4 and 5.2 GHz as popular mobile applications. Verifying the method, the circuit approach, EM (Electromagnetics) simulation and measurement are conducted and their results turn out to agree well with each other. Additionally, the CRLH property is shown with the dispersion diagram and the effective size-reduction is mentioned.

Dipole Antenna With Left-Handed Loading

2006 ◽  
Vol 5 ◽  
pp. 483-485 ◽  
Author(s):  
H. Iizuka ◽  
P. S. Hall ◽  
A. L. Borja
Keyword(s):  
Dipole Antenna ◽  
Left Handed

A Small and Bandwidth-Extended Dipole Antenna With Nonperiodic Left-Handed Transmission Line Loading

2014 ◽  
Vol 13 ◽  
pp. 1019-1022 ◽  
Author(s):  
Wei-Ping Cao ◽  
L. Shafai ◽  
Bing-Zhong Wang ◽  
Si-Min Li ◽  
Bei-Bei Li
Keyword(s):  
Transmission Line ◽  
Dipole Antenna ◽  
Left Handed
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